Chemistry Middle School

I have 7 more questions left :’)

Answers

Answer 1

A, B for the first two

Answer 2

The 3rd question ranks: XZYW

Related Questions

How many atoms are in (NH4)2SO4

Answers

Answer:

Explanation:

(2*4=8)O

Ammonium sulfate has 15 atoms

Use the images below to complete the information on the table and answer questions 1-5.

Answers

Answer:

Proton: Positive

Electron: Negative

Neutron: No charge

Proton positive
Electron negative
Neutron neutral

2 more questions left

Answers

Answer:First one is 3

Leandra is baking cookies, and they are ready to come out of the oven. Before she takes them out of the oven, she puts oven mitts on. Why does Leandra do this?

A Heat energy moves from warmer objects to cooler ones.
B Heat energy moves from cooler objects to warmer ones.
C The light energy from her hands will transfer to the cookies.
D The coolness of her hands will transfer to the cookies and will make them cold.

Answers

Answer:

Explanation:

Heat can't come from a cold object but can from a warm of hot one.

Answer: A

Heat moves from the hotter object out and distributes into colder objects. Also heat can’t come from a cold object. You can apply this to a real life scenario as you put oven mitts on so you don’t burn yourself.

Which oneeeeeeeeeeeee

Answers

Answer:

Agree

Explanation:

This is what I found.

Air is actually a collection of very small molecules; oxygen gas and nitrogen gas are molecules made from two atoms each. Only the noble gases readily exist as single atoms.

Hope this helps.

Answer:

Air is actually a collection of very small molecules; oxygen gas and nitrogen gas are molecules made from two atoms each. Only the noble gases readily exist as single atoms.

Explanation:

I hope this helps. I'm not sure because it would depend on the gas. But I would go with disagree personally.

Why is it important to have a control?

IN SOUND ENERGY!!!!!!!

Answers

Answer:

why it is important to have control in sound of energy is because noise is airborne sound energy within a broad range of frequencies that has the potential to cause either discomfort or injury to people working in the area. specifically, noise needs to be controlled In order to *protect the hearing of the personnel who work at the facility *

35 POINTS AND BRAINLIEST!
Which description is not a property of an acid?
A. pH lower than 7
B. Turns litmus paper blue
C. Sour taste
D. Corrosive

Answers

Answer:

B turns litmus paper blue

Explanation:

B is the answer, hopefully that helps you!

If a average person and a trained athlete where to exercise which pule rate would be slow and which pulse rate would be fast?

Answers

the average person would have a higher pulse rate when exercising because their body is not used to it, which makes it have to work harder to maintain that status

the athlete would have a slower pulse rate because their body is acclimated to the exercise and does not need to work as hard to maintain their body

Sugar, C6H12O6, is made of carbon, hydrogen, and oxygen atoms. Sugar is — (I WILL MAKE U BRAINLIEST

A. a compound because it is made of two or more atoms chemically combined and its parts cannot be separated by physical means

B. a mixture because it is made of different kinds of atoms but they are not chemically combined

C. a solution because it dissolves when mixed with water

D.an element because it is a pure substance whose parts cannot be separated

Answers

Sugar is a compound because it is made of two or more atoms chemically combined and its parts cannot be separated by physical means.

Answer:

Explanation:

D. is not the answer as there are many elements that go into Sugar

C. Is not the answer because it is not a solution

B. Is not the answer because they are not physically combined but chemically

Therfore A is the answer

Please answer one or both of the questions below

Answers

Answer:

a=2 b=1 c=3 im litterally takeing the quiz right now

Explanation:

Answer:

a=2 b=1 c=3

Explanation:

use your brain :)

Why is it important to have a control?
IN SCIENCE.....SOUND CONTROL
P.S don't make it sound like ur a genius

Answers

its important to have control so you can predict or cause what happens to what you’re doing

How many atoms doesCo(NO3)2 have

Answers

The answer is 9. Calcium nitrate is made up
of 3 different elements that equal 9 atoms.

9 (I had this on a test and got it right)

here the answers for what is radiation?

Transfer of heat through objects touching the source
Transfer of heat through direct physical contact
Transfer of heat through electromagnetic waves
Transfer of heat through the movement of particles

Answers

Transferring heat through electromagnetic waves

C . Transfer of heat through electromagnetic waves

Radiation is said to be process where heat is transferred between two objects in the form of electromagnetic waves . In radiation two object dont need to be in direct physical contact for the heat transfer to happen .

What is Litmus Paper?

Answers

paper stained with litmus which is used to indicate the acidity or alkalinity of a substance. Blue litmus paper turns red under acid conditions, and red litmus paper turns blue under alkaline conditions.

[tex]\huge{\underline{\frak{\pink{Answer:\;}}}}[/tex]

Litmus is a natural dye which is extremely from lichens. it is the most commonly used indicator. Litmus is available in the form of blue and red litmus paper.

When a log burns in a fire, a a physical change has occurred. b mass is gained. c new substances are formed.

Answers

Answer: technically it is chemical and physical change

Explanation: chemical bc it’s burning and physical bc it’s going from a log to ashes

Answer:

C! New substances are formed.

Explanation:

The burning log will release carbon dioxide, which is a new substance that was never there in the first place.

Compound: ________________
. Found in soil; contains hydrogen (H) and oxygen (O)

Answers

Answer:

hydrogen im doing the same thing but diffrent

Explanation:

Hydrogen peroxide is the compound found in soil containing hydrogen and oxygen

I will brainly
And 5 star rate!!

Answers

most of them explode is the answer to that question

one or more substances are converted to a different substance. an example could be ( iron + oxygen = rust

What are some advantages and disadvantages to the acid rain management techniques?

Answers

Disadvantages of acid rain:
• Acid rain affects the fresh water ponds and lakes and destroys the aquatic life as some species of fishes are rare and may be extinct
• it can affect the trees particularly those that are high altitude
• It can damage historical monuments and buildings
•soil can be affected and can lead to deaths of good microbes

Advantages of acid rain:
• it makes holes in limestone below ground, which creates caves and places to store groundwater, as well as providing habitat for some species
• But the new study shows that sulfuric in acid may have benefits, limiting global warming by counteracting the natural production of methane gases by microbes in wetland areas.

Of course you should do more studying on acid rain but these are the simple ones

Acid rain management techniques include protect plants from acid rain on falling on them.

What is acid rain?

Rain formed when sulfur dioxide and nitrogen oxide react with chemicals in the atmosphere like water,oxygen and carbon dioxide to form sulfuric acid and nitric acid and then falling to ground containing these acids is called acid rain.

Acid rain alters the environment the environment tremendously by damaging plants and aquatic ecosystems.Plants require a specific pH of soil for their optimum growth and nutrition.

Due to acid rain, the acidity of soil increases rendering it unfit for plant growth.Similarly, pH of water also increases which affects the survival of aquatic ecosystems.

It also damages the the monuments made of metals, marbles .Taj Mahal made up of white marble has turned yellowish due to acid rain.

Learn more about acid rain,here:

https://brainly.com/question/22143130

#SPJ2

In which direction does heat energy move?

A From cold objects to colder objects
B From colder objects to warmer ones
C From warmer objects to colder ones
D From warm objects to warmer objects

Answers

Answer:

Explanation:

Because when a cold object is cold it start to get warm because Of the air.

and it start to warm and it gets warm.

C

Heat usually flows to colder objects in order to make them both the same temperature and when the colder object finally gets hot and is the same temperature as the hotter object it stops flowing hope this helps:)

Carlos listed some advantages and disadvantages of using nonrenewable resources.

Which best describes Carlos’s error?

Answers

Answer:

The answer is ores must be processed to make useful products!

Explanation:

12 Points/Brainliest

Answers

Answer:

In fact, at the sea level, the the sea water boils at 100 degree C where atmospheric pressure is normal. However, the boiling takes place at a lower temperature at the top of a mountain due to low pressure. In other words the boiling is faster at the top of a mountain than that at its foot.

Explanation:

Hope this helped you :)

There is many sea levels

I need help assappp
...........

Answers

Disagree is the awnser to this question

the answer is disagree

Which oneeee is ittt!!!!

Answers

Answer:

Disagree.

Explanation:

Nothing would remain. Everything on Earth is made up of atoms. The chair consists of only atoms. So, if you remove all of the atoms, nothing would be left! Hope this helps.

The answer would be disagree

Steps of photosynthesis:

___ ATP molecules form.
___ Sugar molecules form.
___ Chlorophyll absorbs light energy.

Answers

Answer:

Chlorophyll absorbs light energy, ATP molecules form, sugar molecules form. I'm pretty sure this is correct, but if it is not I'm sorry...

Explanation:

1. Chlorophyll absorbs light energy
2. ATP molecules form
3. Sugar molecules form

Compound: ________________
. Found in apatite soil, contain phosphorus (P)

Answers

Answer:

Ca5 or Apatite

Explanation:

Think of a creative title for a video about the states of matter

Answers

Answer:

States of life ?

Explanation:

maybe this ?

What can the student conclude about the experiments? (Attachment)
I WILL MAKE YOU BRAINLIEST

A. Experiments 1 and 2 show chemical changes because bubbles were produced.

B. Experiment 1 shows a physical change because no new substances were produced, and experiment 2 shows a chemical change because a new substance was produced.

C. Experiment 1 shows a chemical change because bubbles were produced, and experiment 2 shows a physical change because a liquid turned into a solid.

D. Experiments 1 and 2 show physical changes because no new substances were produced.

Answers

Answer: B. Experiment 1 shows a physical change because no new substances were produced, and experiment 2 shows a chemical change because a new substance was produced.

Explanation: a physical change is reversible

chemical is 2 or more substances combined to make a reaction such as bubbling, change of color or temperature

Question 6(Multiple Choice Worth 3 points)
(02.01 MC)

What is the landform in the image

Dune
Hill
Plateau
River

Answers

All of the above, is that an answer?

Answer:

C (Plateau) :)

Explanation:

Because a plateau is an area of relatively level high ground. so that means the answer is plateau!

A theory usually has observation and reasoning in its favor, although it may not be experimentally verified.

True or False

Answers

yes i believe it’s true

I believe it’s true :)

Select the substance or substances that are homogeneous mixtures

Question 22 options:

Solution

Compound

Colloid

Molecule

Suspension

Answers

Answer:

colloid, suspension, solution

Colloid , solution, suspension . I hope it helps you

Other Questions

Write 0.48 as a fraction in simplest form.0.48= I would also like an explanation too please! please answer ASAP 4 Underline the digit in tenths placea) 423.16b) 5.2() 235.46 Which function has a graph that intersects the y-axis at the point (0-4)? Plz help por favor In what cellular function does the structure here play a role Imma just leave this here imma do brainlyest Which economic power given to the government in the Constitution do antitrust laws best exemplify? Refer to Table 9.2. (Data are expressed in billions of dollars).Full Employment Income (Output) Consumers Desire to Spend Investors Desire to Spend Total Private Spending Total Saving$500 $300 $250 $___ $___600 375 250 $___ $___700 450 250 $___ $___800 525 250 $___ $___If the full-employment level of income (YF) in Table 9.2 is $800 billionA. There is a recessionary gap of $25 billion.B. The economy is in equilibrium.C. There is an inflationary gap of $250 billion.D. There is a recessionary gap of $275 billion. What is the answer? What is the slope of the line that passes through the points (9,8) and -15,-16)? Write your answer in simplest form. Im supposed to write an essay on a personal narrative someone whos a hero to me. Idk what to do factorise the followingx9x+14 I beg you please please I beg you help me please Im litterly crying please :( what did angelina grimk encourage women to do? sentences using culmination plz help its due tomorrow, I need to show work Helpppp due in a minute I have a few questions answer them in the comments Ill give brainliest PLS I NEED THIS ASAP Noya needs to determine the number of books that will fit into a box. If the box has a length of 18 inches and each book is StartFraction 2 Over 9 EndFraction of an inch thick, which expression can be used to determine the number of books that will fit into the box? 14 2u = -12Solve for u help me please im in 4th grade and online is frustrating