Chemistry High School

PLEASE HURRY IM TIMED Atoms are made up of electrons, neutrons, and____?
protons
compounds
mixtures
water

Answers

Answer 1

Answer: protons

Explanation:

Answer 2

A. Protons I learned this in class

Related Questions

The number 6.02 x 1023 is

Answers

Avogadro's constant

hope this helped:)

Answer:

6158.46

Explanation:

[tex]602 \div 100 \times 1023[/tex]

If the temperature is -25 degrees C then water will be in a ___________ phase. However, if the temperature increases to 10 degrees C, it would be in a _________ phase.

A. solid...liquid

B. liquid...gas

C. gas...liquid

D. solid...solid

Answers

Answer:

A

Explanation:

Water is solid below 0 degrees C

Water is liquid between 0 and 100 degrees C

Water is gas above 100 degrees C

Solid iron pellets are heated, melted and drawn into wires. This is an example of a chemical reaction
True
False

Answers

Answer:

false

Explanation:

It is a physical reaction because it is being heated.

Answer:

False

Explanation:

Just because the iron was melted into wires does not mean that it isn't iron. It is still iron just in a different form.

classify the reaction

Answers

Answer:

Synthesis reaction

Explanation:

2Hg+O2 ⇒ 2HgO is in the direction of off

Element + Other Element ⇒ Product

The conceptual model of a synthesis reaction is 2Hg+O2 ⇒ 2HgO

Boyles Law-
Variables that change:
Variables that remain constant:
Charles Law-
Variables that change:
Variables that remain constant:

Answers

Answer:

Boyles Law-

Variables that change: volume and pressure

Variables that remain constant: Temperature

Charles Law-

Variables that change: volume and temperature

Variables that remain constant: pressure

Explanation:

Which statement best explains a way in which a cell gets rid of wastes?

Answers

Answer:

I would say B but you don't have to take my word for it

Answer:

D

Explanation:

Help with stochiometry asap

Answers

For every 2 Mol NaOH you would get 1 Mol N2H4

particles are very ..........​

Answers

Answer:

pls comment if this helps

Explanation:

small this is because people  cant see them

Which phrases describe the open-ocean zone? Check all that apply.

very little sunlight
few nutrients
low temperatures
low density
located near coasts

Answers

Answer:

- few nutrients

- low temperatures

-very little sunlight

Explanation:

Answer:

I think it's: located near coasts.

Need help matching them with correct formula

Answers

Answer:

Here you go I hope it helped you! :) good luck!

how many molecules of water are produced when 3.14 grams of ammonium nitrate are decomposed

Answers

Answer:

See the last entry

Explanation:

Remark

Ammonium Nitrate decomposes as follows.

NH4NO3 → N2O + 2H2O

If this does not agree with the reaction you have, let me know.

Step One

Find the molecular Mass of Ammonium Nitrate.

N =  1 * 14  =  14

H =  1 * 3 =     3

N =  1 * 14     14

O3 = 3*16  = 48

Molar Mass =69

Note: the masses used are approximate. Every periodic table is different. When you answer this question use the masses on your periodic table. My numbers are just guides.

Step Two

Find the number of mols in Ammonium Nitrate.

Formula

mols = given mass / molar mass

Givens

given mass = 3.14

Molar Mass = 69

mols  = 3.14 / 69

mols = 0.0455

Step 3

moles of water.

1 mol of Ammonium Nitrate = 2 mols of water

0.0455 mols of Ammonium Nitrate = x mols of water

x = 2* 0.0455 mols of water.

x = 0.091 mols of water

Step 4

Find the molecules of water.

1 mol of water = 6.02*10^23 molecules of water

0.091 mol water= x

x = 0.091 * 6.02*10^23

x = 5.48 * 10^23

What is known as the downhill movements of masses of rock and soil?

A. Mass wasting
B. weathering
c. giant erosions

Answers

Answer:

b

Explanation:

Answer:

Gravity drives all mass wasting.

Explanation:

How many molecules are in 0.25 mole of CO?

Answers

1.5 x 10 to 23rd power

___________________is the rate that an object moves in a certain direction. Question 3 options:

Speed

Displacement

Direction

Velocity

Answers

Answer: Velocity

Explanation:

i just took the quiz for k12

Velocity is the rate at that an object moves in a certain direction. The correct option is d.

What is velocity?

The directional speed of an item in motion, as measured by a specific unit of time and observed from a certain point of reference, is what is referred to as velocity. A vector is a velocity. It comprises both magnitude and direction.

The size of velocity is speed. In still air, a particle gravitationally settles and quickly reaches its terminal velocity. The term "settling velocity" refers to a particle's final speed in a still fluid (also known as the "sedimentation velocity").

The particle settling velocity in the foreshore region plays a significant role in understanding fluctuations in the hydraulic regime and interactions between sediment and fluid in the surf zone.

Therefore, the correct option is d, Velocity.

To learn more about Velocity, refer to the link:

https://brainly.com/question/18084516

#SPJ6

If the amount of energy required to break bonds in the reactants is more than the amount of energy released in forming bonds in the products, then the reaction will have a negative change in enthalpy (−ΔH). (2 points)
True
False

CH AT FOR THE WeebsRUs

Answers

Answer:

YASSSSSSS

Explanation:

i think the answer is true

An ionic bond forms between what two types of atoms?

Answers

They are formed between actions and anions, I hope this helped

Can someone help-
Not number 9)

Answers

Answer:

Metamorphosis

Explanation:

Complete metamorphosis occurs through four stages: egg, larva, pupa, and adult. The incomplete metamorphosis occurs

QUESTION FOR THE GIRLS!!!!

What do most girls look for in a guy?

Looks?
Height?
Attitude?

Answers

Explanation:

The right answer is Look .........

Certain females may only love a male for his looks and money.

Certain females may love a male for his personality.

Certain females may love a male depending on his height.

That's all I know.

HELP NEEDED
How many nanoliters are in 1 liter. Show work

Answers

1 000 000 000 nanoliters

1000000 ur welcomeeee

PLeasee help meee guys iam crying i need corect answer

Hydrogen gas is extremely flammable is it chemical property or physical?

Answers

Answer:

chemical

Explanation:

I believe it is a chemical property. Mark brainliest if this helps!

The atomic size of zirconium is smaller than
a. niobium
b. Yttrium
c. Molybdenum
d. None of the above

Answers

Answer:

b

Explanation:

because hahamaskdjdjskskskskkssksksks

4. When is it appropriate to use Roman numerals in naming compounds?

Answers

Answer:

Explanation:

Roman numerals are used in naming ionic compounds when the metal cation forms more than one ion.

Being able to curl your tongue is a recessive trait (t), while not being able to curl your tongue is a dominant trait (T).
Having curly hair is also a recessive trait (s), while having straight hair is a dominant trait (S).
Parent 1 can curl their tongue (tt) and also has straight hair (Ss). Parent 2 cannot curl their tongue (TT) and has
curly hair (ss). In your notebook, perform a dihybrid cross for these traits. Parent 1: ttSs Parent 2: TTSS
13
What are the Parent 1 gametes? (HINT: FOIL. There will be 4 genotypes)
14
What percent of offspring can curl tongue and have straight hair?
15
What percent of offspring cannot curl tongue and have curly hair?

Answers

should be this. you can’t have any of these listed below since they both rain recessive traits. recessive traits aren’t able to be created in the dihybrid. btw i did the simplified grid since they produce the same gametes. i could be wrong though (:

help please asap. chem sucks

Answers

I'm assuming that C is carbon.

[tex]4.590 \: mol \: c \times \frac{12.01 \:g \: c}{1 \: mol \: c} [/tex]

55.1259 g of C

80 foot-pounds of work is needed to move the sofa in Tyler's apartment. Which of the following statements is true?

Answers

The fact at you yes are

find the moler mass of P2S3

Answers

Answer:

158.2 g/mol

Explanation:

the spectral classes of four stars are shown in comparison with a Hertzsprung-Russell diagram. Based on the information which star is most like the sun?​

Answers

Answer: star 3

Explanation: i did the test

Answer: star 3

Explanation:I did the test


Activity 7 Let's Think First

Directions: Below are possible situations during an earthquake. Encircle the letter of the appropriate action.

1. If you are outside of your house, move away from the buildings.
A. I will do it
B. I will just run anywhere.

2. If you are inside your house, get cover under a table.
A. I will do it
B. I will not do it

3. If you are in a moving car, what will you say to the driver?
A. Just keep driving.
B. Please stop.

4. Drop to the ground and protect your head.
A. I will do it
B. I will not think about it.

5. Prepare a disaster emergency kit beforehand.
A. I will do it
B. I will not do it.

​

Answers

1. a.
2. a.
3. b.
4. a.
5. a.

pls help i have 2 hours to do this

Answers

3ZnCl2 + 2Al → 2AlCl3 + 3Zn

Which of the following is the smaller atom: magnesium or chlorine?

Answers

Answer:

Chlorine atoms are smaller

Explanation:

Magnesium have more electrons than chlorine.

Answer: Chlorine

Explanation: Since chlorine's 17 protons are greater than magnesium's 12 protons, chlorine will have a greater effective nuclear charge to draw chlorine's valence electrons closer to the nucleus and, thus, chlorine is expected to have the smaller atomic radius, while magnesium with the lower effective nuclear charge is expected to have the larger atomic radius.

     

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