CHEMISTRY MIDDLE SCHOOL

Write your answer in scientific notation and Stanford form.(1.2 * {10}^(7))(4 * {10}^( - 2))
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Answers

Answer 1
Answer:

The answer is 4.8 x 10^5 in scientific notation and 480,000 in standard form.

To multiplying numbers in scientific notation, you need to multiply the coefficients and add the exponents.

Using the given numbers, (1.2 x 107) and (4 x 10-2), we multiply the coefficients 1.2 and 4 to get 4.8.

Then, we add the exponents 7 and -2 to get 5.

Writing the result in scientific notation, we have 4.8 x 105.

In standard form, this is expressed as 480,000.

Therefore, the answer in scientific notation is 4.8 x 105 and in standard form is 480,000.

Learn more about multiplying numbers in scientific notation here:

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Answer 2
Answer: 1.2 x 10000000 = 12000000
4 x .10 = .4
12000000 x .4 = 4,800,000
= 4.8 x 10^6
The little numbers after the 10 tells you how many times you move the numbers decimal. We do this so we can simplify bigger numbers.

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Protons are positively charged and repel other protons. Which other particle is found in the nucleus and separates protons so that the strong force can hold the nucleus together?A) electrons
B) neutrons
C) protons
D) quarks

Answers

Explanation:  THE ANSWER IS B,NEUTRONS..I TOOK THE TEST!!! DO NOT LISTEN TO THE 1ST ANSWER! IT IS B!!

Answer:

b

Explanation:

Which of the following is a element water,oxygen, carbon dioxide ammonia

Answers

If you look on the periodic table, you'll find that oxygen is an element. You can also find out by looking up how each formula is written. Oxygen - O | Carbon Dioxide - CO2 | Water - H2O | Ammonia - NH3. An element has only one capital letter. Oxygen is the only one which falls under that category.

Answer:oxygen

Explanation:

how does the processes of photosynthesis and cellular respiration allow for the flow of energy in organisms

Answers

Photosynthesis and cellular respiration go hand and hand. Remember the two equations are just a reverse of the opposite equation. 

Cellular Respiration-
C₆H₁₂O₆ + 6O₂ (Yeilds or Makes) 6CO₂ + 6H₂O + ATP (Or Energy)

Photosynthesis-
6CO₂ + 6H₂O + ATP (Or Sunlight) (Yeilds or Makes) C₆H₁₂O₆ + 6O₂  

When a plant goes through photosynthesis it produces oxygen as a waste product, which you should know is what animals use to breathe, well when animals use oxygen in the process, they also make a waste product which happens to be Carbon Dioxide, which a plant uses to make glucose during photosynthesis, so if we didin't have one we wouldn't have the other.

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

Which metal does not form cations of differing charges? ( Which metal is NOT a transition metal?)A) Na

B) Cu

C) Co

D) Fe

E) Sn

Answers

The metal that does not form cations of differing charges is Sodium (Na).

The transition metals refers to the group of metals which one can find in the middle of a periodic table. Some of the metals that are able to form cations with different charges include:

  • Chronium (Cr)
  • Iron (Fe)
  • Cobalt (Co)
  • Copper (Cu)
  • Tin (Sn) ,
  • Mercury (Hg)
  • Lead (Pb)

It should be noted that Sodium (Na) is a metal metal that does not form cations of differing charges.

Therefore, the correct option is A.

Read related link on:

brainly.com/question/12843347

Answer:Na

Explanation:its not in group 3 to 13 hope this helps god bless

During natural selection, which organisms are most likely to survive as the environment changes

Answers

The organisms more likely to survive in a changing environments are the ones that have genetic variation.

Answer:

A: ones that can best adapt to and survive in the changed environment

Explanation:
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