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OLEGan [10]
3 years ago
14

Whats the difference between a molecule and compound? best answer gets branliest :)

Chemistry
1 answer:
Mice21 [21]3 years ago
6 0

molecule- when two or more of the same atoms of an element chemically join together

ex: O2

compund- when the two types of atoms are different

ex: H2O

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your answer is c. two atoms of oxygen.

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3 years ago
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24. What volume of a 0.0200M calcium hydroxide is required to neutralize 35.00 mL of 0.0500M nitric acid
Natalka [10]

Answer:

THE VOLUME OF 0.200M CALCIUM HYDROXIDE NEEDED TO NEUTRALIZE 35 mL of 0.050 M NITRIC ACID IS 43.75 mL.

Explanation:

Using

Ca VA / Cb Vb = Na / Nb

Ca = 0.0500 M

Va = 35 mL

Cb = 0.0200 M

Vb = unknown

Na = 2

Nb = 1

Equation for the reaction:

Ca(OH)2 + 2HNO3 --------> Ca(NO3)2 + 2H2O

So therefore, we make Vb the subject of the equation and solve for it

Vb = Ca Va Nb / Cb Na

Vb = 0.0500 * 35 * 1 / 0.0200 * 2

Vb = 1.75 / 0.04

Vb = 43.75 mL

The volume of 0.02M calcium hydroxide required to neutralize 35 mL of 0.05 M nitric acid is 43.75 mL

6 0
3 years ago
Name the type of equation shown here: 2NaBr+Ca(OH)2 —>CaBr2+2NaOH
sergeinik [125]
A) Double replacement
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6 0
2 years ago
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What property of matter does not change even though the appearance may change?
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The law of the conservation of mass states that matter is neither created nor destroyed, only converted to other forms. Therefore, the mass never changes, even if its appearance does.

Explanation:

4 0
3 years ago
Describe a plants circulatory system brainly?
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HOPE THIS HELPS

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3 years ago
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