CHEMISTRY MIDDLE SCHOOL

Name at least 4 other gases in the atmosphere besides oxygen and nitrogen

Answers

Answer 1
Answer: HELIUM
KRYPTON
CARBON DIOXIDE
HYDROGEN
Answer 2
Answer: Argon,Carbon dioxide,Neon,Helium, and Methane

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A 50-kg child on a skateboard experiences a 75-N force. What is the expected acceleration of the child?

Answers

Since the force is 75-N and the kid is 50kg then the speed will be more than equal. It will move fast, but not so fast, but if the force was higher then it will go faster.

Analyze how friction can be both a positive and negative aspect In our every day lives

Answers

Friction-Now a positive part of friction could be that it helps us from falling while we move about,friction also creates energy
A negative part could be that it produces heat that could damage different forms of machinery and also causes tear in the machinery

A measure of the strength of acid rain can be given using _____. an acid
a base
a pH scale
all of the above

Answers

The pH scale is used to measure the strength of acids and bases.

Which is a site where sedimentary rocks form? A. deep underground B. forests C. volcanoes D. ancient seas

Answers

Sedimentary rocks are formed in D. ancient seas because they are formed when layers of sediment (sand, mud, dead organisms, etc) builds up on top of each other and pressure compresses them into rock
C.volcanoes   
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The _______ of a wave is a measure of the amount of energy it carries

Answers

The word that best fits is frequency. The sentence is The frequency of a wave is a measure of the amount of energy it carries. There is a direct relationship between frequency and energy of a wave. The constant of proportionality is h, Planck's constant. So, Energy = h * frequency. So, the answer is frequency. Although you should know that wavelength is related to frequency and so it is also a measure of the amount of energy and it should also be other valid answer.

The word that best fits is frequency.  Thus,the sentence is,the frequency of a wave is a measure of the amount of energy it carries.

The electromagnetic radiation consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

There is a direct relationship between frequency and energy of a wave. The constant of proportionality is h, Planck's constant. So, Energy = h  frequency. So, the answer is frequency.

Learn more about electromagnetic radiation,here:

brainly.com/question/29646884

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What state of matter is carbon at room temperature

Answers

Carbon is a solid at room temperature. 
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