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Dafna1 [17]
3 years ago
13

Plz help!!! Will give brainliest!!!

Chemistry
1 answer:
kiruha [24]3 years ago
6 0

Answer:

1. Sn + O2 -----> SnO2

2. 2As + 3H2 -----> 2AsH3

3. KCIO4 ------> KCI + 2O2

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The reaction of 60.0 g of aluminum oxide with 30.0 g of carbon produced CO gas and 22.5 g of aluminum metal. What is the percent
natulia [17]

Answer:

The answer to your question is: 70.8%

Explanation:

Data

Al₂O₃ = 60 g

C = 30 g

CO = gas

Al = 22.5 g

MW Al₂O₃ = 102 g

MW C = 12 g

MW Al = 54 g

Reaction

                 Al₂O₃    +     3C     ⇒       3 CO    +    2 Al

Limiting reactant

                            102 g of Al₂O₃  -------------- 54 g Al

                             60 g                 --------------   x

                             x = 31.8 g

                            36 g of C ------------------ 54 g of Al

                            30 g of C ------------------  x

                            x = 45 g of Al

Limiting reactant = Al₂O₃

Percent yield = \frac{22.5}{31.8} x 100

Percent yield = 70.75 %

5 0
2 years ago
Functions of the skin other than thermoregulation​
german

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Protection and sensation

Explanation:

8 0
3 years ago
"An increase in the price of gasoline will increase the demand for hybrid vehicles." This statement is an example of a positive
-Dominant- [34]

Answer:

True

Explanation:

This is because the statement above fits the definition of a positive economic statement. A Positive economic statement refers to objective statements that can be verified, tested , amended or discarded by consulting available evidence .The statement above can be tested objectively to establish its veracity.

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1<br> The process of a solid turning into a liquid is called
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Melting

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Once heat is added it will turn to a liquid

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