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lianna [129]
3 years ago
11

Which of the following is an indicator of a chemical reaction?

Chemistry
2 answers:
yuradex [85]3 years ago
3 0

Answer:

B

Explanation:

B is the best showing of a chemical reaction out of the choices

garik1379 [7]3 years ago
3 0

Answer:

it is all except C

Explanation:

a chemical reaction occurs when 2 substances completely mix together and they do not remain separate

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Which is the empirical formula for a compound that contains 64.75g nitrogen and 185.25 oxygen
Svetach [21]

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The name of a hydrate is calcium chloride dihydrate. What is its formula? B. CaCl2 x 2H20

Explanation:

BRAINLIEST PLZZZZ

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3 years ago
Complete the following molecular models to represent balanced equations by
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Answer:

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Explanation:

Thank you

7 0
3 years ago
A scientist has 0.12 miles of a gas at a pressure of 4.06 kPa and a volume of 14 liters in an enclosed container. What is the te
natka813 [3]

Answer:

56972.17K

Explanation:

P = 4.06kPa = 4.06×10³Pa

V = 14L

n = 0.12 moles

R = 8.314J/Mol.K

T = ?

We need ideal gas equation to solve this question

From ideal gas equation,

PV = nRT

P = pressure of the ideal gas

V = volume the gas occupies

n = number of moles

R = ideal gas constant

T = temperature of the gas

PV = nRT

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T = 56840 / 0.99768

T = 56972.17K

Note : we have a large number for temperature because we converted the value of pressure from kPa to Pa

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