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aksik [14]
3 years ago
13

Im so alone and i really need friends and maybe more pls dont delete my quiestion

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

Answer:

I'll be your friend!

Explanation:

If you need help with anything just ask!

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Which statment correctly decribes a law?
xeze [42]
B) is a factual statement
Laws are based on observations and experiments and have been tested many, many times to show no error
4 0
3 years ago
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
3 years ago
A catalyst will
scZoUnD [109]

Answer:

increase the chemical rate

7 0
3 years ago
What is an atom? A- the smallest particle of an element. B- the negatively charged particle found in a cloud. C- the densely pac
cestrela7 [59]

Answer:

A

Explanation:

it is the most basic unit of matter

5 0
3 years ago
Read 2 more answers
What effect would a decrease or increase in barometric pressure have on the boiling point
sladkih [1.3K]

Answer:

Pressure Affects the Boiling Point

Atmospheric pressure influences the boiling point of water. When atmospheric pressure increases, the boiling point becomes higher, and when atmospheric pressure decreases (as it does when elevation increases), the boiling point becomes lower.

Explanation:

i think it will help you

5 0
3 years ago
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