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konstantin123 [22]
3 years ago
9

(1.8 x 10-2) ÷ (9 x 102)

Chemistry
2 answers:
andre [41]3 years ago
8 0
.3333333 as a repeating decimal
Natalka [10]3 years ago
4 0
Do it yourself in this order. multiply, divide, add, subtract. remember the order by this phrase. good luck!:)
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Programs that award certificate that u can help in securing jobs are called​
leonid [27]

vocational or technical education programs.

Explanation:

A vocational or technical education program is one that awards certificate that can help in securing jobs.

In a vocational or technical program, one is studying for a specific job role. It involves and hands on practical processes within a short period of time possible that makes one viable for some roles.

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The volume of hcl gas required to react with excess magnesium metal to produce 6.82 l of hydrogen gas at 2.19 atm and 35.0 °c i
Musya8 [376]
The answer would be 34
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3 years ago
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CaCO3 → CaO + CO2 Calculate the theoretical yield of Calcium Oxide if 24.8 grams of Calcium Carbonate decomposes. Calculate the
RideAnS [48]

Answer:

Theoretical yield: 13.9 g

Percent yield: 94 %

Explanation:

The reaction is:

CaCO₃ → CaO + CO₂

We see that the reaction is correctly balanced.

1 mol of calcium carbonate can decompose to 1 mol of calcium oxide and 1 mol of carbon dioxide.

We convert the mass to moles: 24.8 g . 1mol / 100.08g = 0.248 moles

As ratio is 1:1, 0.248 moles of salt can decompose to 1 mol of oxide.

We convert the moles to mass: 0.248 mol . 56.08g /1mol = 13.9 g

That's the theoretical yield.

To determine the percent yield we think:

(Determined yield / Theoretical yield) . 100 → (13.1 / 13.9) . 100 = 94 %

5 0
3 years ago
Where is the mass of an atom located?<br>​
Inessa [10]
The mass is located in the necleus.
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3 years ago
Which term describes the materials magma is made of?
Elis [28]

Answer:

I believe the answer is Molten

Explanation:

I did that quiz and got 100% :)

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4 years ago
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