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krek1111 [17]
2 years ago
15

Which one of the following represents the number of units of each substance

Chemistry
1 answer:
netineya [11]2 years ago
4 0

Answer:B

Explanation:Coefficient represents the number of units of each substance.

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Find the volume of an object that has a density of 3.14 g/mL and a mass of 52.9 g.
Natasha_Volkova [10]

Answer:

The answer is

<h2>16.8 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}  \\

From the question

mass of object = 52.9 g

density = 3.14 g/mL

The volume of the object is

volume =  \frac{52.9}{3.14}  \\   = 16.847133757...

We have the final answer as

<h3>16.8 mL</h3>

Hope this helps you

5 0
3 years ago
A chemical equation is shown: C2H4 + O2 → CO2 + H2O According to the law of conservation of mass, how many atoms of oxygen exist
astraxan [27]

Answer:

6 oxygens on the product side

Explanation:

1) balance the equation:

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2) calculate the number of oxygens on the product side

2CO2=4

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6 0
3 years ago
Calculate the molecules in 9.78 moles of oxygen gas
Hoochie [10]

Answer:

i am quite unsure what you want me to answer but if you explain it to me w ould live to help

Explanation:

7 0
3 years ago
What is the overall charge of a Aluminum atom that loses 3 electrons​
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It’s charge was neutral due to the equal number of protons and electrons. when it becomes an ion it loses 3 electrons leaving behind only 10. the answer is 10. the equation is +13 +(-10)=+3
8 0
3 years ago
What is the difference between a heterogeneous mixture and homogeneous mixture?
Fiesta28 [93]
A homogeneous mixture has the same uniform appearance and composition throughout


A heterogeneous mixture consists of visibly different substances or phases.
7 0
3 years ago
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