Chemistry High School

I need help with this please

Answers

Answer 1

Answer: the place that i put the letters is how it should look also 75% of your peas are green

Explanation:

Related Questions

Please tell me the answer I will mark you brainliest

Answers

Answer:

Answer is the third one

Explanation:

All living organisms are made up of one or more cells, which are considered the fundamental units of life. Even unicellular organisms are complex! Inside each cell, atoms make up molecules, which make up cell organelles and structures.

what is the density of an object with a height of 1 and a mass of 36

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you will divide 36 by 1 and multiply 2 on both sides which makes 72 by 2 so 2into 1 is 2 and 2 into 36 is 72

Pls help i'll mark you the brainlest What force is needed to make ball fall on Earth if it has a mass of 13kg

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Answer:

gravity.

Explanation:

Use your knowledge of valence electrons and how they affect bonds to figure out how carbon (Group 14) and oxygen (Group 16)
would be attached to one another. In carbon dioxide (CO2), how is the compound structured? (Use "-" to represent a single
bond and "=" to represent a double bond) (1 point)
C-O-O
O=C-O
C=O-O
O=C=O

Answers

Answer: D

Explanation:

O=C=O

Carbon is in group 14 having four valence electrons and oxygen is in group 16 having six valence electrons hence the correct structure of CO2 is O=C=O.

Carbon and oxygen are nonmetals. Nonmetals form compounds by sharing electrons in a covalent bond.Carbon, a group 14 element has four valence electrons while oxygen, a group 16 element has six valence electrons.

Carbon can share four valence electrons with two oxygen atoms in CO2 to form the structure O=C=O. In this way, all the atoms now obey the octet rule.

Learn more: https://brainly.com/question/865531

What is an electrolytic cell?
A. A cell with a negative cell voltage
OB. A cell with a spontaneous redox reaction
C. A cell with a positive cell voltage
D. A cell that has a salt-bridge connection

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Answer:

A. A cell with a negative cell voltage

Explanation:

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Answer:

Law of Conservation of Mass.

Is that Right?

the variable part of an amino acid is the __________.

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answer: the variable part of an amino acid is the: SIDE CHAIN

Someone pls help me I will make you brain

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Answer:

Explanation:

Answer:

I don't know either

Explanation:

I am sorry i can not answer you

Why is alchemy no longer accepted?
A. Alchemists were not able to turn other metals into gold.
B. Scientists used evidence, analysis, and experiments to disprove
alchemy.
c. Alchemy became less popular once Aristotle died.
O D. The discovery of radioactivity took people's attention away from
alchemy

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i think the answer is B. scientists used evidence, analysis, and experiments to disprove Alchemy. apologies if its incorrect.

A book is held against a wall by applying a force perpendicular to the surface of the book. In a free body diagram of all of the forces acting on the book, what force would keep the book from sliding down the wall? A. force of hand B. force of gravity C. friction force D. normal force

Answers

In a free body diagram of all of the forces acting on the book, the force which would keep the book from sliding down the wall is; Choice A: Force of hand.

In modern mechanics, it is noteworthy to know that the normal force, F(n) is the component of a contact force which is perpendicular to the surface that an object contacts.

In this instance, the surface which the object contacts is the wall.

It has however been stated within the question that;

A book is held against a wall by applying a force perpendicular to the surface of the book.

In conclusion, the force which keeps the book from sliding down the wall is the force of the hand which is perpendicular to the object's surface of contact.

https://brainly.com/question/18775450

Answer:

FORCE OF HAND

Someone pls help me I will make you brain

Answers

Answer:

transmission clutches

is lithium a good or bad element? (explain why)

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Answer:

Its good

Explanation:

It has power

Answer: The widespread occurrence of lithium in plants results in a wide, although low-level, distribution of lithium in animals. Lithium salts have complex effects when absorbed into the body. They are not highly toxic, although high levels can be fatal.

Explanation: Which means that lithium is a good element depending on levels.

The more massive star will always be closer to the center of gravity in a binary start. True or false?

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Answer:

True

Explanation:

Hope it helped!

the answer is true.

Can someone find from which website this test is?

Answers

Answer:

Try quizlet, they have everything on there

Explanation:

3. How many moles of silver is 8.46x1024 atoms of
silver?

Answers

Answer:

14.05 moles

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{8.46 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 14.053156[/tex]

We have the final answer as

14.05 moles

Hope this helps you

4. Balance the following equations (show work)
a.___H2(g) +___O2(g) →___H2O(1)

b.____Fe(s) +___O2(g)→___Fe2O3(s)

c.___Al(s) +___HCl(aq) →___AlCl3(aq) +___H2(g)

d.____CaCO3(s) +____HCl(aq) →____CaCl2(aq) +____CO2(g) +____H2O(1)

Answers

Answer:

a) 2H2+O2 = 2H²O

b) 4Fe+30²=2Fe²O³

c) 2Al+6HCl=2AlCl³+3H²

Which of the following is a physical change?

Dissolving salt in water

Digesting food

Burning wood

Oxidation

Answers

Digesting Food

Explanation I Just Know

Someone pls help me I will make you brain

Answers

Answer:

i guess the answer is..true

the ozone in troposphere protects the earth from ultra violet waves that may cause global warming

How long will it take a traveling 350m/s to go a distance of 1400m?

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Answer:

6 hours

Explanation:

pls brailiest

It will take 490000 seconds which is 136.111 hours. Also can be described as 5.6 days.

Someone pls help me I will make you brain

Answers

1st one. It absorbs more heat in the atmosphere!

Minerals have:

A. an exact chemical composition, such as SiO2.
B. a small range in chemical composition, such as (Mg, Fe)2SiO4
C. a large range in chemical composition, such as (Mg, Fe, Al, K, Na)2SiO4
D. no set chemical composition.

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Answer:

Explanation:

i don't know minerals a good for the body

importance of solvay process

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Answer:

It is in great demand by the glass industry, and it is important in the manufacture of textiles, soaps and detergents, numerous chemicals, paper, and iron and steel. It is also used as a water softener (household washing soda is a well-known form of sodium carbonate) and in the refining of petroleum.

Someone pls help me I will make you brain

Answers

C is your answer
Have a good day

Answer:

Explanation:

II and III

How many carbon atoms are represented by the model below?
A. 3
B. 2
C. 1
D. 4

Answers

D. 4 carbon atoms is the answer

Someone pls help me I will make you brain

Answers

Answer:

As shown in the attachment,

Explanation:

how might you separate a mixture of water and salt?

Answers

Answer:

by evaporating the solution leaving the solute (salt) behind after the solvent has evaporated

Someone pls help me I will make you brain

Match them plsss

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Answer:

carbon monoxide - B

nitrogen oxides - D

particulate matter - A

sulfur oxides - C

Explanation:

not sure if i'm fully correct though

Answer:

Carbon monoxide is (B)

Nitrogen oxides is (D)

particulate matter is (A)

sulfur oxides is (C)

Explanation:

sorry if I did it wrong

Why is boiling water considered a physical change

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Anwser:because the waters vapor still has the same structure of water (H20)

Four students each measured the mass of 1.43g sample four times

Answers

Answer:

look up 4 divided by 1.43

Can someone please help me write a little 2 sentence answer to this for me, it would be so helpful and the first person to answer it will most definitely be marked brainlist.

Answers

Answer:

I think that it would be better to have smaller cells because smaller cells takes less energy to transport waste and generally more efficient to control than larger cells. It is better to have smaller cells because larger and fewer cells takes up more nutrients, but doesn't cover as many surface area. In the end, smaller cells are more efficient, cover more surface area, and moves faster than bigger cells.

Explanation:

I hope that this is the kind of answer you were looking for!

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