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kvasek [131]
2 years ago
13

How do the products of chemical reactions compare to their reactants?

Chemistry
2 answers:
LUCKY_DIMON [66]2 years ago
8 0

Answer: The products usually weigh more than the reactants.

Explanation:

mafiozo [28]2 years ago
6 0

Answer:

A

Explanation:

i just took the k12 test

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How many grams of argon would it take to fill a large light bulb with a volume of 0.745 L at STP?
EastWind [94]

Answer:

Mass = 1.33 g

Explanation:

Given data:

Mass of argon required = ?

Volume of bulb = 0.745 L

Temperature and pressure = standard

Solution:

We will calculate the number of moles of argon first.

Formula:

PV = nRT

R = general gas constant = 0.0821 atm.L/mol.K

By putting values,

1 atm ×0.745 L = n × 0.0821 atm.L/mol.K× 273.15 K

0.745 atm. L = n × 22.43 atm.L/mol

n = 0.745 atm. L / 22.43 atm.L/mol

n = 0.0332 mol

Mass of argon:

Mass = number of moles × molar mass

Mass = 0.0332 mol × 39.95 g/mol

Mass = 1.33 g

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3 years ago
A white crystalline salt conducts electricity when it is melted and when it is dissolved in water. which type of bond does this
Sergio039 [100]
The salt contains ionic bond so that it dissociate ultimately by the movement of ion electricity is conducted
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3 years ago
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Which type of wave has the lowest energy of the following:
Tcecarenko [31]

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Fill in the blanks below.
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Answer:

Explanation:

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