pls help with this science homework

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 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

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Answer:

for only five points we will not make sketch n

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

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!

Answer:

1. N

H4

O

H

2. N

H4

Cl

3. Ag2

O

4. K2

S

O4

5. Ca

(N

O3) 2

6. Na2

S

Explanation:

I tried hope u understand

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:

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:

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

Option 3 is your answer

Weather describes daily conditions and climate describes averages

Have a nice day!

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

Answer:

C.

Explanation:

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

Answer:

A storyboard is a sequence of sketches or illustrations that map out the scenes planned for a video. The video production team then uses this map to ensure that the plot is coherent, engaging, and free of inconsistencies before they start making the video.

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.

Answer:

Science and society

Explanation:

Answer:

need points sorry ill help you i promise

Explanation:

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:

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:

Answer:c

Explanation:

...

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:

                    Water study guide

sorry i forgot everuthing i learned in this class lol

Answer:

CH4 + 2O2 → CO2 + 2H2O

Explanation: Hope this helps you.

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

Answer:

The answer is A, Outer Core.

Explanation:

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Answer:

a

Explanation:

i just took the test

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