What happens to the particles of a gas when the gas changes into a liquid? (5 points)
Oa
They move faster.

They slow down
Oc
They increase in size,
Od
They decrease in size.

Answers

Answer 1

Answer:

ь

They slow down

Explanation:


Related Questions


How many milliliters of 0.128 M nitric acid are required to neutralize 11.1 mL of 0.184 M sodium hydroxide? Answer with the correct number of significant digits.

Answers

Answer:

I think 7.72 mL

11.1/184 × 128/184=7.72

What is the speed of a car that moves 12 meters in 3 seconds? (Don't forget the unit!)

Answers

Answer:

8.9 mph

Explanation:

2.
Which provides evidence for evolution?
A. modern organisms closely resembling fossils
B. different animals developing with the same patterns
C. multiple species growing in very different ways
D. different animals having very different body structures

Answers

Answer:

A. modern organisms closely resembling fossils

Explanation:

Fossils are defined as the preserved remains or traces of living organisms from past.

Fossils are considered as an evidence for evolution because they represent the existence of life on earth and shows the difference between the life in past that life on earth today. With the help of fossil, it is easy to determine the age of fossils which further help to determine that how modern organisms have evolved from the past.

Hence, the correct answer is "A. modern organisms closely resembling fossils".

HELPPPPP WILL MARK BRAINLIEST


Which are advantages of reflecting telescopes? Check all that apply.

A)There is no rainbow-like halo around the image.
B)Reflecting telescopes can be made very large.
C)Reflecting telescopes use only lenses, not mirrors.
D)Only the reflecting side of the primary mirror needs to be perfectly shaped and smooth.
E)The eyepiece creates an image for the observer.

Answers

Answer:   a.b.d

Explanation:

Answer:

A)There is no rainbow-like halo around the image. Yes

B)Reflecting telescopes can be made very large. Yes

C)Reflecting telescopes use only lenses, not mirrors. No

D)Only the reflecting side of the primary mirror needs to be perfectly shaped and smooth. Yes

E)The eyepiece creates an image for the observer. No

The strongest bases have pH values close to

Answers

Answer:

Explanyour mmation:

Write a balanced chemical equation describing the oxidation of the bromide ion by solid xenon trioxide to produce bromine liquid and xenon gas in an acidic aqueous solution. Use the smallest whole-number coefficients possible.

Answers

Answer:

6Br⁻ + XeO₃ + 6H⁺ → 3Br₂ + Xe + 3H₂O  

Explanation:

First, we need to write the half-reactions:

2Br⁻ → Br₂ + 2e⁻ Oxidation -Balanced yet-

XeO₃ →  Xe Reduction

To balance the reduction in acidic aqueous solution we need to add waters in the other side of the reaction as oxygens are present:

XeO₃ →  Xe + 3H₂O

And H⁺ as hydrogens from water we have:

XeO₃ + 6H⁺ →  Xe + 3H₂O

To balance the charge:

XeO₃ + 6H⁺ + 6e⁻ →  Xe + 3H₂O  Reduction -Balanced-

To cancel out the electrons of both half-reaction we need to multiply oxidation 3 times:

6Br⁻ → 3Br₂ + 6e⁻

XeO₃ + 6H⁺ + 6e⁻ →  Xe + 3H₂O  

And the balanced reaction in acidic aqueous solution is the sum of both half-reactions:

6Br⁻ + XeO₃ + 6H⁺ → 3Br₂ + Xe + 3H₂O  

If the compound below is oxidized, the resulting product is:______CH3--CH2--CH2--CO--Ha) methane and propane b) butanal c) butanoic acid d) butane

Answers

Answer:

Butanal

Explanation:

alkanes are not oxidized

Carboxylic acids cannot be oxidized

Alkanals can be oxidized

freezing a sealed full bottl of water leads to a broken bottle and freezing a sealed full flexible wall container of n butyl alcholol leads to a container with concave walls, what can you conclude about the densitiies of the solid and liquid forms of these two substances

Answers

Answer:

See explanation

Explanation:

We know that water begins to expand at 4°C. This is generally referred to as the anomalous behavior of water.

The implication of this is that ice has a greater volume than water. Thus ice is less dense than liquid water.

n-butyl alcohol has much less density than water. This accounts for the fact that water upon freezing breaks the bottle while n butyl alcholol leads to a container with concave walls.

Hence the density of ice is much higher than the density of n butyl alcohol.

Refer to the radioisotope colbalt-60, which has a half life of 5.3 years. An initial sample of colbalt-60 has an activity of 12,400cpm. How much time has passed if the activity of the sample has dropped to 775cpm

Answers

Answer:

21.2 years

Explanation:

If half life is 5.3 years, that means activity will be 50% every 5.3 years.

12,400 x 50% = 6,200

6,200 x 50% = 3,100

3,100 x 50% = 1,550

1,550 x 50% = 775

4 half lives, so 4 half lives x 5.3 years/half life = 21.2 years

complete the sentence using oxalate, oxic or oxide
A binary ionic compound with the formula Feo
would be named iron(II)_____

Answers

Answer: oxide

Explanation:..

While exploring an ancient lava field, a geologist discovers a piece of granite that has a coating of soft, crumbling rust. What is the most likely explanation for this rust?

A.
Exposure to air has caused the iron-bearing minerals in the granite to oxidize.
B.
At some point in the past, a river flowed over the field, depositing the rust on top of the granite.
C.
Exposure to acid precipitation has worn away the granite's exterior, revealing its soft interior.
D.
Snails and fungi living in the lava field have secreted chemicals that reacted with the granite to form rust.

Answers

Answer:

A. Exposure to air has caused the iron-bearing minerals in the granite to oxidize.

Explanation:

The main cause of granite rust is a metal substance that remains in it's contact over a long period of time. As a result of a moist or wet environment, . a geologist discovers a piece of granite that has a coating of soft, crumbling rust.

Exposure to air has caused the iron-bearing minerals in the granite to oxidize.

Option A. is correct.

a compound has an empirical formula of C7H12O and a formula mass of 224g. what is the compound molecular formula​

Answers

Explanation:

fyuvgddykhadkxdiyflhdfhyddkgd

Which elements are diatomic?
1
H
3
Li
6
с
7
N
8
0
9
F
5
B
13
AI
2
He
10
Ne
18
Ar
15
P
16
S
17
CI
11
Na
19
K
4.
Be
12
Mg
20
Ca
38
Sr
31
Ga
33
As
35
Br
36
Kr
34
Se
52
Te
14
Si
32
Ge
50
Sn
82
Pb
114
FI
51
Sb
53
1
37
Rb
55
Cs
54
Xe
E
86
49
In
81
TI
113
Nh
56
Ba
83
Ві
84
Po
85
At
Rn
87
Fr
88
Ra
115
Mc
116
Lv
118
117
Ts
Og

Answers

Diatomic elements have to atoms of the element in a molecule.

What are diatomic elements?

Diatomic elements are those elements whose atoms combine together to form molecules of the element. The elements that are diatomic in the list are;

HNOFClBrSeTe

Hence, diatomic elements have to atoms of the element in a molecule.

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Help as soon as possible please tell why you chose A B C OR D

Answers

Answer: the answer is A

Explanation:

Hello there, recently I was watching the movie Lights Out and I noticed that Diana, the ghost which the movie is about, burns when her skin goes in contact with any light but UV. Can someone explain how is she immune to UV light?

Answers

Answer:

maybe it does not affect her because uv light is different and has a different reaction to it

Explanation:

can i have brainest please

7. Explain why ethylated spirit at room temperature when dropped at the back of the palm makes
the palm to feel very cold.
(2 Marks)​

Answers

Answer:

Evaporation is very important in the cooling of surfaces. If we put a drop of methylated spirit on our hand the methylated spirit will soon evaporate and our hand feels cold. The molecules of methylated spirit get the energy they need from our hand, leaving the molecules of the hand with less energy and so colder.

The ethylated sprit starts to evaporate from our hand. Evaporation is an endothermic process thus, absorbs the heat energy from our hand make the surface cool.

What is an endothermic process?

An endothermic process is the one which absorbs energy from the surroundings to proceed. Thus, an endothermic process make the surroundings cool and make the reaction system hot.

The process which evolves heat energy is called an exothermic process. An exothermic reaction make the surroundings hot sometimes leads to explosion.

Evaporation is the process of conversion of a liquid substance into vapor form. This process needs energy to intake. Hence during evaporation, the heat energy is absorbed from the surroundings make there cool. This is just happening on our hand when sprit evaporates.

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How many gram are in 4.5 moles of Li2O

Answers

Answer:

134.5 grams

Explanation:

There are 134.5 grams in 4.5 moles of Li2O (lithium oxide).

BRAINLIEST PLZZZZZ

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 135g are in 4.5 moles of Li[tex]_2[/tex]O.

What is mole?

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity of amount of substance. we know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number. Mole is inversely proportional to molar mass of given substance. Mole is directly proportional to given number of atoms present in that substance.

Mathematically, molar mass and mole can be related as

mole of  Li[tex]_2[/tex]O =given mass of Li[tex]_2[/tex]O÷ Molar mass of  Li[tex]_2[/tex]O

Molar mass of  Li[tex]_2[/tex]O=30 g/mol

mole of  Li[tex]_2[/tex]O=4.5 moles

Substituting the values

4.5 moles =mass of Li[tex]_2[/tex]O÷ 30 g/mol

mass of Li[tex]_2[/tex]O = 135g

Therefore, 135g are in 4.5 moles of Li[tex]_2[/tex]O.

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Place the following in order of increasing X-Se-X bond angle, where X represents the outer atoms 7) in each molecule. SeO2 SeCl6 SeF2
A) SeF2 SeO2< SeCl6
B) Seo2 C) SeF2 < SeCl6 SeO2
D) SeCl6 < SeF2 Se02

Answers

Answer:

SeCl₆ < SeF₂ <  SeO₂

Explanation:

To determine the order of the bond angle of the compound, we need to determine the hybridization of each compound given.

For:

SeO₂, The hybridization is sp² because the Se is doubly bonded to O at both sides and Se contains a lone pair of electrons.

SeCl₆, Se is attached to six different Cl atoms via a single bond in a hexagonal shape. Thus, SeCl₆ hybridization is sp³d²

SeF₂, Here, Se is singly bonded to F atoms on both sides and Se contains a lone pair of electrons. The hybridization is sp³

Therefore, the bond angle in sp² = 120°, sp³ = 109.8°, sp³d² = 90°

Hence, the order is:  SeCl₆ < SeF₂ <  SeO₂

A scientist completes a thermal decomposition reaction. 12.25g of calcium carbonate, CaCO3, is heated
and forms calcium oxide, Cao, and carbon dioxide, CO2.
a. Write a balanced chemical equation to demonstrate this reaction. Include state symbols.


b. Calculate the number of moles of calcium carbonate that is thermally decomposed in this
reaction.
Ok

Answers

Moles of calcium carbonate : 0.1225

Further explanation

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

CaCO₃(s) → CaO(s) + CO₂(g)

mass of CaCO₃ : 12.25 g

mol CaCO₃(MW=100 g/mol) :

[tex]\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{12.25}{100}\\\\mol=0.1225[/tex]

Middle School Science help please. ill give brainliest

Answers

Answer:

its c

Explanation:

Which of the following factors affect the rate of weathering in an area?

A.
climate
B.
topography
C.
rock composition
D.
all of the above

Answers

Answer:

D

Explanation:

pretty sure D

Question 3 Multiple Choice Worth 1 points)
(01.06 MC)
The contents of two beakers are described in the table.
Contents of Beakers
Beaker
Contents
Final Substance Formed
х
sugar, water sugar not visible in water
Y
sand, water sand settled at the bottom of the beaker
Which statement is true about the final substances formed in the beakers?
The final substances in both the beakers are mixtures.
The final substances in both the beakers are pure substances.
The final substance in Beaker X is a pure substance and in Beaker Y is a mixture.
The final substance in Beaker X is a mixture and in Beaker Y is a pure substance.

Answers

Answer:

the asnwer is B

Explanation:

The contents of two beakers X sugar, water sugar not visible in water Y sand, water sand settled at the bottom of the beaker  final substance in Beaker X is a pure substance and in Beaker Y is a mixture. option C is correct.

What is mixture and pure substance?

A mixture is a material made up of  of two or more substances and this type of material can be compounds or chemical elements or mixture of liquids, solids, or gases can be produced.

A pure substance is the homogeneous mixture of two of more components  is called the pure substance an if components are 2, 3, or 4 in number then the solution will be binary , tri-nary or quaternary.

Therefore, contents of two beakers X sugar, water sugar not visible in water Y sand, water sand settled at the bottom of the beaker  final substance in Beaker X is a pure substance and in Beaker Y is a mixture. option C is correct.

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1. Which of the following is one impact that volcanoes had on the early earth?

A. Volcanoes had no impacts on planet earth but they are pretty and fun to learn about
B. Volcanoes released carbon dioxide into the atmosphere and this allowed for the evolution of oxygen-
breathing life forms
C. Volcanoes released oxygen into the atmosphere and this allowed for the evolution of oxygen-breathing
life forms
D. Volcanoes absorbed water vapor from the atmosphere and made the planet very dry and difficult to live
on

Answers

Answer:

B. Volcanoes released carbon dioxide into the atmosphere and this allowed for the evolution of oxygen-

breathing life forms

Explanation:

Volcanoes are a major source of carbon dioxide and global warming

Volcanoes absorbed water vapor from the atmosphere and made the planet very dry and difficult to live on, the impact that volcanoes had on the early earth.

What is volcanoes ?

A volcano is a crack in a planet's crust, such as the one on Earth, that permits hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Most volcanoes on Earth are located underwater, and they are most frequently found where tectonic plates are diverging or convergent.

The tectonic plates are drifting apart along constructive plate boundaries. To open a fresh passageway for rising hot magma to move on to the surface, the Earth's crust is split apart.

Volcanoes erupt with a tremendously destructive mixture of ash, lava, hot, toxic gases, and rock. Explosions from volcanoes have claimed lives.

Thus, option D is correct.

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Perform the following
mathematical operation, and
report the answer to the
appropriate number of
significant figures.
15.673 + 14.752 + 8.4568 = [?]

Answers

Answer:

38.882

Explanation:

For all those Acellus kids XD

How many joules are needed to change the temperate of 22g of water from 18°C to 33°C?

Answers

Answer:

Q =  1379.4 J

Explanation:

Given data:

Mass of water = 22  g

Initial temperature = 18°C

Final temperature = 33°C

Heat absorbed = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Specific heat capacity of water is 4.18 J/g. °C

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 33°C - 18 °C

ΔT =  15°C

Q = 522 g ×4.18 J/g.°C× 15°C

Q =  1379.4 J

The answer to the problem: 3.6 x 4.639 + 5.831 = _____, written to the correct number of significant digits is:

Answers

Answer:

3.6 x 4.639 + 5.831 = 2000

Explanation:

In this problem, we need to find the value of 3.6 x 4.639 + 5.831.

Here, 3.6 has 2, 4.639 and 5.831 has 4 significant figures.

We can use BODMAS RULE to find it as follows :

3.6 x 4.639 + 5.831 = (3.6 x 4.639) + 5.831

= 2325.96 + 5.831

in significant gigure,

= 2300 + 5.831

= 2305.831

In one significant figure,

= 2000

Hence, the answer of the problem is 2000.

18. What is the percent by mass sugar of a solution made by dissolving 12.45 grams of sugar in 100 grams of water?

Answers

The percent by mass sugar of a solution : 11.07%

Further explanation

Given

mass of sugar = 12.45 g

mass of water = 100 g

Required

The percent by mass

Solution

Mass of solution :

[tex]\tt mass~sugar+mass~water=12.45+100=112.45~g[/tex]

Percent mass of sugar :

[tex]\tt \%mass=\dfrac{mass~sugar}{mass~solution}\times 100\%\\\\\%mass=\dfrac{12.45}{112.45}\times 100\%=11.07\%[/tex]

When would sediment get deposited in a stream

Answers

Answer:

When it's gradient decreases

When hydrogen reacts with calcium metal, what are the oxidation numbers of the calcium and hydrogen in the CaH2 product?

Ca(s)+ H2(g) → CaH2

a. +2 and -1
b. +1 and -2
c. +2 and 2
d. 0 and 0
e. -2 and +1

Answers

Answer:  e. -2 and +1

Explanation:

Oxidation number or oxidation state : It represent the number of electrons lost or gained by the atoms of an element in a compound.

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation number of the substance increases.

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation number of the substance gets reduced.

 [tex]Ca(s)+H_2(g)\rightarrow CaH_2[/tex]

The oxidation number of calcium (Ca) in free state is 0 and in [tex]CaH_2[/tex] , it is -2.

The oxidation number of hydrogen in [tex]H_2[/tex] is zero and oxidation number of hydrogen in [tex]CaH_2[/tex]  is +1 as in hydrides hydrogen loses electrons.

The oxidation number of calcium has been +2, and the oxidation number of hydrogen has been -1. Thus, the correct option is A.

The oxidation number can be defined as the number of electrons that have been lost by an atom in a chemical reaction.

The oxidation number can be calculated as the:

The oxidation number of Hydrogen when it combines with the less electronegative element has been -1.

There have been 2 atoms of Hydrogen that lose an electron, thus the total oxidation contribution of hydrogen has been -2.

The oxidation number of hydrogen has been -1.

The oxidation number of Calcium has been:

Ca atom has taken an electron from the hydrogen.

[tex]\rm Ca\;+\;e^-\;\rightarrow\;Ca^-[/tex]

The calcium takes one electron from each atom bonded. Thus the oxidation number of calcium has been +2.

The oxidation number of calcium has been +2, and the oxidation number of hydrogen has been -1. Thus, the correct option is A.

For more information about oxidation numbers, refer to the link:

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How many protons are in an element with an atomic number of 8 anda mass number of 18?
3
8
10
18

Answers

Answer: 8

Explanation:

The atomic number of an element refers to the number of protons that it has in its nucleus. Carbon for instance has an atomic number of 6 because there are 6 protons in its nucleus.

This atomic number will also tell you the number of electrons the element (in its neutral state) has because protons and electrons are the same number. The reason the mass number is 18 in this scenario is that the element has 10 neutrons in its nucleus.

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which event is most likely to lead to a heat wave ?? Question 12(Multiple Choice Worth 5 points) (02.05 MC) Triangle ABC is transformed to obtain triangle ABC: A coordinate grid is labeled from negative 12 to 0 to 12 on both x- and y-axes at increments of 1. Triangle ABC has A at ordered pair 2, 2, B at 2, 10, C at 8, 12. Triangle A prime B prime C prime has A prime at ordered pair negative 1, negative 1,B prime at negative 1, negative 5, C prime at negative 4, negative 6. Which statement is correct for Triangle ABC. and Triangle A prime B prime C prime.? Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 6. and then rotating it about the origin by 90 degrees Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 2. and then rotating it about the origin by 180 degrees Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 3. and then rotating it about the origin by 180 degrees Triangle ABC is similar to triangle A prime B prime C prime., because Triangle A prime B prime C prime. is obtained by dilating Triangle ABC. by a scale factor of 1 over 3. and then rotating it about the origin by 90 degrees What is a thesis or claim statement? 2.Which of the following gear speedsmakes motor vehicle move faster?a) 0b) 11c) 2d) 3e) 4 Honey, butter, frosting and shortening would be considered part of the___group and should be used sparingly. Geometric proof. Please help! Mark brainliest identify the y intercept of the function f(x) = 2 + 4x +3 It rained nine days in the month of April. Based on this, what is the probability that it does not rain on the first day of May? * Please give me the correct answer Clint and his brother raise rabbits. Clint has 11 rabbits and his brother has 24. What is the difference betweenthe number of rabbits Clint has and the number his brother has? Which of the following bestdescribes the European coastline? Vary the sleds height and mass. Observe the effect of each change on the potential energy of the sled.a. How does potential energy change when height is increased?b. How does potential energy change when mass is increased?c. Compare a sleds potential energy at 10 m to its potential energy at 20 m. How does doubling height affect potential energy?d. Compare the potential energy of a 100-kg sled and a 200-kg sled at the same height. How does doubling mass affect potential energy? What are the 2 types of location? line s has a slope of 7/4. Line t is perpendicular to s. What is the slope of line t? do you think it's okay for your best friend to date your ex? answer with a full sentence i just want to know. It was estimated that 650 people would attend the baseball game, but 683 people actually attended.What is the percent error, to the nearest percent, of the estimate? HURRY IM TIMED!!!!! How much would Kelly have in her account after three years if she started with $200 and earns 2 percent, compounding annually?$212.24$12.24$200.00$400.00 As part of a class project, a university student surveyed the students in the cafeteria lunch line to look for a relationship between eye color and hair color among students. The table below contains the results of the survey.From the sample population of students with blond hair, what is the approximate value of the relative frequency of students with green eyes? True or false ignoring negative behaviors is never taken as support for the mean behavior PLEASE HELP ASAP I LOVE YOU I'LL GIVE BRAINLY Steam Workshop Downloader