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Ber [7]
2 years ago
10

Can someone help me with this

Chemistry
2 answers:
lord [1]2 years ago
8 0

Answer: A

Explanation:

lozanna [386]2 years ago
8 0

Answer:

B

Explanation:

BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB I LIKE B it's B though gl on the rest.

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2 years ago
Suppose the half-life of element k is 20 minutes. if you have a 200 g sample of k, how much of element k will be left after 60 m
vodka [1.7K]
T=20 min
m₀=200 g
t=60 min

the mass of element through time t is:
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m=200*2^(-60/20)=25 g

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5 0
3 years ago
Read 2 more answers
What is the guiding formula for combustion reactions​
IgorLugansk [536]

Answer:

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Therefore the general equation for a complete combustion reaction would be

Fuel + O2 ------ CO2 + H2O

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Acid...hope it helps
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