Chemistry Middle School

PLS HELP ME IN THIS QUESTION

Answers

Answer 1

Answer:

the first one is just water and the second one is gas

Explanation:

Answer 2

1st isnwater and the second is has

Related Questions

2. 1. Your best friend has missed a lot of school recently. Your teacher has allowed you to create a study guide and will let your friend use it on the test.

The guide should include:
• descriptions of amplitude, wavelength, frequency, and wave speed.
• Give examples of the wave relationship between amplitude and wavelength (if there is no relationship, explain how you know)
• Give examples of the wave relationship between wavelength and frequency (if there is no relationship, explain how you know)Text to speech

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Water study guide

sorry i forgot everuthing i learned in this class lol

Please help!I'll give some points:))

Answers

Warm air is rising from the equator and sinking from the poles. This is called a convection current.
I think this is right, I’m pretty sure

SOMEONE PLS HELP ME WITH THE FIRST QUESTION IN THE BOTTOM.

Answers

Answer:

Yes

Explanation:

Water being burnt in a pot of fire results in H20 Gas.

Answer:When you boil water, the heat given off is a sign that chemical bonds are being broken and new ones are being fore broken.

Explanation: false Water boiling is a physical change and not a chemical change, therefore no bonds are broken.

hope this helps

The invention of airplanes revolutionized transportation. It also helped scientists study hurricanes more closely. This is can example of ____ influencing _____?
.

Answers

Answer:

Science and society

Explanation:

Study the diagram about the varying pressures of Earth’s Layers. Earth's layers. The Crust at depth of 0 kilometers, upper mantle depth 410 kilometers, lower mantle depth 2,900 kilometers at 125 gigapascals, 2,200 degrees Celsius. Outer core depth 5,100 kilometers at 330 gigapascals, 5,000 degrees Celsius. Inner core at 364 gigapascals, 5,500 degrees Celsius.

Which layer most likely has a pressure, represented in units of GPa, within the range of 310 GPa to 150 GPa?

outer core
inner core
lithosphere
oceanic crust

Answers

Answer:

The answer is A, Outer Core.

Explanation:

Your welcome and have a wonderfull day :P

Answer:

Explanation:

i just took the test

what is a oganisem
mmmmmmmm

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Living things that are capable of reacting to stimuli, reproduction, growth, and homeostasis.

Cell Analogy Exploration
analogy story

Can someone help me with the analogy story?

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Answer:

need points sorry ill help you i promise

Explanation:

The cytoplasm is like the guards of the mall

Plz help which this it is the digestive system

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I honestly have no clue on this one

I’m leaning towards B sorry if I’m wrong... but if I’m right mark me Brainly plzzz

CAN SOMEONE HELP ME ON THIS PLEASE

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option C gas.............................. ᕕ( ᐛ )ᕗ

A wave cycle is
a. the amount of time it takes for a wave pattern to repeat.
b. the total number of waves created by a single disturbance.
c. one complete motion of the repeating pattern in a wave.
d. the total number of S-shapes created by a wave in 60 seconds.

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It’s c because a wave cycle is repeating patterns all over again and again

What are some strengths and limitations of the constellations

Answers

Answer:

Sorry but I don't know

Explanation:

Could you share a picture of what it looks like or what your supposed to base your answer on?

Answer:

Explanation:

yeeah much more ddifficult

The type of heat transfer responsible for distributing most of the heat throughout Earth's atmosphere is

A.radiation

B.conduction

C.convection

Answers

Answer:c

Explanation:

...

Radiation example if be your phone a lot it will burn you

What are the 2 types of bonds in science and define them.

Answers

Answer:

The two main types of bonds formed between atoms are ionic bonds and covalent bonds. An ionic bond is formed when one atom accepts or donates one or more of its valence electrons to another atom. A covalent bond is formed when atoms share valence electrons.

Explanation:

Answer:

chemyical and Ionic

Explanation:

Provide the total number of atoms in each formula given:

1. NH4OH (Ammonium hydroxide)

2. NH4Cl (Ammonium chloride)

3. Ag2O (Silver oxide)

4. K2SO4 (Potassium sulfate)

5. Ca(NO3)2 (Calcium nitrate)

6. Na2S (Sodium sulfide)

Answers

Answer:

1. N

2. N

3. Ag2

4. K2

5. Ca

O3) 2

6. Na2

Explanation:

I tried hope u understand

1. 7
2. 6
3. 3
4. 7
5. 10
6. 3

How does an increase in altitude affect the climate?

Answers

Answer:

As you increase in elevation, there is less air above you thus the pressure decreases. As the pressure decreases, air molecules spread out further (i.e. air expands) and the temperature decreases. If the humidity is at 100 percent (because it's snowing), the temperature decreases more slowly with height.

Explanation:

Hopes this helps and plz mark me brainliest!

In your second paragraph, describe properties of sound waves. Then make a claim about how loud an explosion in space should be. Provide evidence and reasoning to support your claim.

Answers

Answer:

Here are five important characteristics: wavelength, amplitude, frequency, time period, and velocity. The wavelength of a sound wave can tell the distance that wave travels before it repeats itself. The wavelength itself is a longitudinal wave that show compression and rarefactions of sound waves.

Explanation:

Hope this helped please pick me brainliest

please helppp thank youuu

Answers

Answer:

heliosphere

Explanation:

The heliosphere shields the solar system so its not a physical system

Please give me brainliest ❤ also good luck!!! also idk if this explains it well...idk how to explain it though....but i know it is right

the heliosphere!

biosphere - regions of the earth with living organisms.

atmosphere - the air surrounding/on earth.

lithosphere - the outer crust/upper mantle of the earth.

hydrosphere - all of the oceans and water sources on earth.

the heliosphere is a bubble-like region of space that is created by the sun. it is not a part of earth.

What is radiation?

a Transfer of heat through objects touching the source

b Transfer of heat through direct physical contact

c Transfer of heat through electromagnetic waves

d Transfer of heat through the movement of particles

Answers

Answer:

Explanation:

Radiation is an invisible force that can be deadly or helpful. So the only way it can move is by another invisible force.

Explain how deforestation contributes to global warming

Answers

Answer:

when trees are cut down it reduced the amount of CO2 being converted into oxygen

Answer:

Deforestation contributes to global warming because with trees being cut down there is less oxygen being made and no trees to take in the carbon dioxide that is being produced. So without trees to do the work, people build greenhouses which uses their own gas that makes the world warmer because it traps the heat from the atmosphere.

Explanation:

How are weather and climate different?
(10 Points)
1.They both describe averages, but climate is over years.
2.Climate describes daily conditions and weather describes averages.
3.Weather describes daily conditions and climate describes averages.

ls answer quick! Thx! I Give Brainliest! But U Need To Answer Properly!

Answers

[tex]\bf{Hello!}[/tex]

Option 3 is your answer

Weather describes daily conditions and climate describes averages

Have a nice day!

The answer is 3. Weather describes daily conditions and climate describes averages. 1 is wrong because they are both different and 1 is suggesting that they are the same and 2 is wrong because weather is the conditions throughout the day and it is a daily thing as to climate which is something that stays the same condition all year long. hope this helps

can someone please help me on this i really need help i will litteraly fail

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21. portion
22.mass conservation
23.molecule

Portion
Mass conservation
Molecule

Which of the following best describes a scientific model? (3 points)
Something used to represent an idea or process
A way to prove a theory is true
A direct experience in nature
A prediction that can be tested

Answers

Answer:

A way to prove a theory is true

Explanation:

I hope this helps

Answer:

A way to prove a theory is true

-hope this the correct answer and if not i hope it at least helped but regardless have a good rest of your day :)

Explanation:

Which chemical equation is balanced? Question 4 options: CH4 + O2 → H2O + CO2 CH4 + O2 → 2H2O + CO2 6CH4 + O2 → 2H2O + 2CO2 CH4 + 2O2 →2H2O + CO2

WILL GIVE BRAINLIEST

Answers

Answer:

CH4 + 2O2 → CO2 + 2H2O

Explanation: Hope this helps you.

Ch4+202-:co2+2H2O
I think so it will be ok

Plz help with this digestive system

Answers

Answer:

(4) mechanical digestion

(5) chemical digestion

(6) enzymes

(7) pharynx

(8) peristalsis

Answer:

(4) Mechanical digestion

(5) Chemical digestion

(6) Enzymes

(7) pharynx

(8) peristalsis

Please help Me Answer this

Answers

Objects that produce heat are coal, liquid fuels, gasoline, oil, and gaseous fuels

Sound: conditioning fan, airplane, broom, falling

Please answer the question circled in red
(I'll only give brainliest if it's right)

!!! THE QUESTION IS ASKING FOR 5-8 SENTENCES, PLEASE RESPOND WITH 5-8 SENTENCES !!!

Answers

Answer:

This energy is mostly seen when the ball is kicked in the air. It is called potential energy because it has the potential to do work. If the soccer ball is raised to a certain height, at the top, before it gains Kinetic Energy, it has the Potential stored that it will be used once it starts to move.

Explanation:

What is a phyiscal and chemical change

Answers

a physical change is changing from one state to another without a change in chemical composition. (ex. freezing, melting, boiling a substance)

a chemical change occurs when one or more substances change into entirely new substances with different properties

Answer:

Physical change is when change occur physically in a substance. It is usually reversible. It includes change in colour, shape, texture, volume etc.

Examples: Cutting of paper, making moulded stuff from dough etc.

Chemical change is when change occurs chemically in a substance. It is non-reversible. When ever a physical change happens, a new substance if formed.

Examples: Burning of paper, transformation of milk into curd etc.

Explain the environmental benefits of recycling paper products.

Answers

Answer:

Explanation:

Recycling paper helps to reduce greenhouse gas emissions that can contribute to climate change. It takes 70% less energy and water to recycle paper than to create new paper from trees. Manufacturing with recovered paper cuts down on pollution that contributes to smog (and ill health).

Answer:

will help us use less energy. When we just keep filling landfills we take space away for growing trees to benefit our environment

What is the difference in the number of neutrons between an atom of fluorine and an atom of argon?
I need an answer fast PLEASE!

Answers

Flourine has 10 and argon has 8 the difference is 8

The difference between the number of neutrons between an atom of fluorine and an atom of argon is 12

The number of neutrons is obtained by subtracting the number of protons from the mass number of the atom. We can calculate the number of neutrons in each element given this information

Mass number of fluorine = 19

Atomic number of fluorine = 9

Mass number of Argon = 40

Atomic number of argon = 18

Hence;

Number of neutrons in fluorine = 19 - 9 = 10

Number of neutrons in argon = 40 - 18 = 22

Difference between number of neutrons in argon and number of neutrons in fluorine = 22 - 10 = 12

Learn more: https://brainly.com/question/5803619

Pls help me do this and I'll give you pts and Brainliest thanks friend and anything!

Answers

Hello! Please insert your item as an image and not a document so that I may view it!!

I can’t see the image can you make it into a photo

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