C The number of outermost electrons increases.
Answer:
ion mobility spectrometer
Explanation:
it is an handheld chemical dectection device
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Answer:
43.7
Explanation:
Volume of gas = 1.00L
Time = 12 hours
Decrease in 1 balloon = 0.200L
Decrease in second balloon = 0.0603L
R1 = rate at which helium diffuses= 0.20/12= 0.0166
R2 = rate at which heavier gas diffuses = 0.0693/12 = 0.00502
Using grahms law
R1²/R2² = m/4
= 0.0166²/0.00502² = m/4
= 10.935 = m/4
When we cross multiply
m is the molar mass of heavier gas = 43.73
Answer:
The reactants are on the left of the arrow, the products are on the right.
Explanation:
Reactants are the substances that exist before the chemical reaction takes place. When writing a chemical reaction or equation, they are found on the left of the arrow. They react to form new substances, which are known as the products. The products are found to the right of the arrow in the reaction.
