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4 years ago

If you were asked to convert 25 kg to the unit mg, which of the following would be the first fraction used in the conversion?

1 answer:

7 0

To convert the unit kg to mg, the result needs to be written in scientific notation. And 1 kg = 10^6 mg. So the answer is 2.5*10^7 mg.

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3 years ago

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1) T
2) F- the heart pumps blood
3) T
4) F- atria and ventricles
5) T
6) T
7) T
8) T
9) F- your heart rate goes down but doesn't stop
10) T

1) D
2) B
3) A
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2 years ago

What are the three types of protist and how are they similar and how are they different (this is science but there is no tab for

allochka39001 [22]

Answer:

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3 years ago

46. True or false. Chemical reactions do not involve changes in the chemical bonds that join

Naddika [18.5K]

Answer:

Chemical reactions do not involve changes in the chemical bonds that join

atoms in compounds :

False

Explanation:

Chemical reaction are the reaction in which old bonds break and new bonds are formed . The formation of new bond result in formation of new compounds . This happen because new bond are result of linking different atoms by the bond.

For example : Water formation from Oxygen and Hydrogen is a chemical process :

$2H_{2}+O_{2}\rightarrow 2H_{2}O$

Original(old) bonds are :

H-H bond in H2 and O-O bonds in O2

In H2 = Hydrogen is joined to Hydrogen

IN O2 = Oxygen is joined to oxygen

New Bonds =

O-H bonds in water (H2O)

Oxygen is joined to hydrogen = New Bond formation

Hence,

Chemical reactions do involve changes in the chemical bonds that join

atoms in compounds

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3 years ago

__?__ is when cells divide. *

DedPeter [7]

Answer:

B.Mitosis

Explanation:

Brainliest??

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3 years ago

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