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zubka84 [21]
3 years ago
15

(Science)

Chemistry
1 answer:
AlladinOne [14]3 years ago
8 0

Answer:

A

Explanation:

eons are divided into eras and eras are based on major events and can vary in time so eons can vary in time

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Which of these contains generic material but is not classified as living?
denis-greek [22]
Viruses are not classified as being alive in because of the fact that they can't reproduce.
4 0
3 years ago
Choose the correct simplification of<br>x^12z^11/x^2z^4<br>​
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▹ Answer

<em>x¹⁰z¹⁵</em>

▹ Step-by-Step Explanation

x¹²z¹¹/x²z⁴

<u>Reduce</u>

x¹⁰z¹¹ * z⁴

<u>Calculate</u>

x¹⁰z¹⁵

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5 0
3 years ago
15g of magnesium (II) oxide decomposes, find the number of oxygen particles produced at 100% yield.
erastova [34]

2.258625 *10²³ oxygen atoms will be produced.

<h3><u>Explanation:</u></h3>

Decomposition reaction is defined as the type of reaction where one single reactant breaks to produce more than one product only by means of heat or other external factor.

Formula of magnesium oxide = MgO.

The molecular mass of magnesium oxide = 24 +16= 40.

So in 40 grams of magnesium oxide, number of molecules is 6.023 * 10²³.

So in 15 grams of magnesium oxide,, number of molecules is 6.023 *1023 * 15/40 = 2.258625 *10²³.

From one molecule of magnesium oxide, one oxide atom will be produced.

So number of oxide atoms with 100% yeild = 2.258625 *10²³

6 0
3 years ago
how do the properties of compounds compare to the properties of the elements from which they are composed
Crank
<span>The elements that form the compound don't compare because it doesn't matter about the elements when they are combined. The elements that formed it together is completely different than the outcome compound. </span>
6 0
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One important function of the atmosphere is to provide the Earth and its people with the water needed for life.
exis [7]
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3 years ago
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