Chemistry High School

Pls help I need help with this ..

Answers

Answer 1

Answer:

iTS FLIPPED

Explanation:

Answer 2

Answer:

i don't know sorry so lets be friends

Related Questions

H2SO3
What does this stand for?

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Answer:

It means Sulfurous Acid

Explanation:

It stand for Sulfurous acid

can you help me with this i don't think it is that hard i just have a lot on my mind.

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Answer:

Global wind

Explanation:

The jet streams go around the whole earth from west to east

Hope you have a good day :)

Can someone help-
Not number 9)

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Answer:

Metamorphosis

Explanation:

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

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:

Explanation:

Water is solid below 0 degrees C

Water is liquid between 0 and 100 degrees C

Water is gas above 100 degrees C

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

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The fact at you yes are

The number 6.02 x 1023 is

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Avogadro's constant

hope this helped:)

Answer:

6158.46

Explanation:

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

classify the reaction

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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

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

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Answer:

YASSSSSSS

Explanation:

i think the answer is true

When KCL dissolved in ethanol, what is the intermolecular attraction between K+ ions and ethanol molecules?

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Answer: Ion-Dipole

Explanation: I took the CK-12 practice and got it right

When KCL dissolved in ethanol, the intermolecular attraction between K+ ions and ethanol molecules is ion - dipole interaction.

What is an ion dipole interaction ?

The term ion-dipole interaction is defined as the intermolecular force of attraction between cation or anion and a molecule. It is present in the solution where ionic compounds dissolve in polar solvents.

Due to the polar O-H group's presence in the molecule, ethanol is a polar substance. Thus, the molecule has a dipole moment. The dipole's positive end rests on hydrogen, and its negative end rests on oxygen.

K+ ions can interact with the ethanol's negative end of the dipole through ion-dipole interaction when KCl is dissolved in the alcohol.

Thus, When KCL dissolved in ethanol, the intermolecular attraction between K+ ions and ethanol molecules is ion - dipole interaction.

To learn more about an ion dipole interaction, follow the link;

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PLeasee help meee guys iam crying i need corect answer

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

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Answer:

chemical

Explanation:

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

particles are very ..........

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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.

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 (:

I WILL GIVE BRAINLIST!!!!!!!!!!!!!!!!!!!!!! PLZZZZZZZZZ HELPPPPPPPPPPPPPP

Explain how proper motion will affect the constellation as seen from the earth.

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Proper motion describes how stars slowly drift in space and change their position in relation to the sun. Since stars have proper motion, over time, the patterns we see now in constellations will not be the same.

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

Nitrogen (N) and hydrogen (H) react with each other to produce ammonia (NH3). This reaction is shown in an equation as N2 + 3H2 → 2NH3. What is the ratio of nitrogen atoms to hydrogen atoms in ammonia?

Answers

Answer:

the ratio is 1:3

Explanation:

you must find it

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.

Sand is composed of silicon dioxide SiO2. A 210 gram sample has how many moles?

Answers

To convert grams to moles you must divide by the molar mass of the molecule
SiO2 molar mass=60.083
210/60.083=3.495
This sample has 3.495 moles of SiO2

The number of moles of 210 gram sample of sand contains 3.5 moles of mole of SiO₂

Sand is composed of silicon dioxide (SiO₂).

Therefore, let's calculate the molecular mass of SiO₂ . Therefore,

Molecular mass of SiO₂

The molecular mass of the compound is the sum of the atomic mass of the compound.

SiO₂ = 32 + (16 × 2) = 28 + 32 = 60 g/mol

Therefore,

60 g = 1 mole of SiO₂

210 g = ?

cross multiply

number of moles = 210 / 60

number of moles = 21 / 6

number of moles = 3.5 moles

learn more on moles here:https://brainly.com/question/4816100

pls help i have 2 hours to do this

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3ZnCl2 + 2Al → 2AlCl3 + 3Zn

Help with stochiometry asap

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For every 2 Mol NaOH you would get 1 Mol N2H4

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

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Answer:

Explanation:

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

What chemical burns red?

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Answer:

Strontium chloride

Explanation:

get that W

Answer:

Strontium chloride or strontium nitrate

Explanation:

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

Answers

Answer:

Explanation:

because hahamaskdjdjskskskskkssksksks

what are the resulting elements and compounds of a chemical reaction called?

i need the answer in 2 minutes.

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Answer:these starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products

Explanation:I hope this helps

please answer 3 plzzzz

7th grade science

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Answer:

Explanation:

Show us the picture, then we can help.

What is a function of the backbone in animals?
A. It protects against predators.
B. It regulates blood glucose.
C. It surround the spinal cord.
D. It limits movement.

Answers

Answer:

C - It surrounds the spinal cord.

Explanation:

Option A would be incorrect. Having a protective shell on an animal’s back would be one of the ways they would be protected against predators. And having a backbone wouldn’t really make a good shield against predators.

Option B is incorrect. The pancreas regulates blood glucose, not the backbone.

Option D would also be incorrect. It doesn’t limit movement unless it’s bent or positioned abnormally. Or unless it’s broken or malfunctioned.

The only option that is correct is option C. Hope it helps. ^^

Energy in a chemical reaction can be identified as which of the following?

A.) Heat
B.) Light
C.) ∆H
D.) 2,000Kj
E.) All of the above

Answers

I believe it’s A..but I’m not quite sure.

___________________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:

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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.

Plz help how do I predict the shape of the molecule for GaBr3

Answers

Explanation:

GaBr3 is called gallium tribromide. It is composed of one gallium atom and three bromide atoms. Within a molecule of gallium tribormide, there are three bonding electron pairs and zero lone pairs of electrons. Such a configuration results in the trigonal planar molecular shape.

Answer:

GaBr3 is called gallium tribromide.

Explanation:

It is composed of one gallium atom and three bromide atoms. Within a molecule of gallium tribormide, there are three bonding electron pairs and zero lone pairs of electrons. Such a configuration results in the trigonal planar molecular shape.

Hope this helps! :)

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