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Vlada [557]
2 years ago
5

Which of the following is a metal?

Chemistry
1 answer:
kogti [31]2 years ago
3 0

Answer:

A.................. I think the answer

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A gas at 200 K occupies a volume of 350 ml. What temperature is needed to increase the volume
Rudik [331]

Answer: Temperature in constant pressure is 286 K

Explanation: If pressure remains constant, then V/T = constant.

V1 = 350 ml and T1 = 200 K and V2 = 500 ml.  V1/T1 = V2/T2

and T2 = T1· V2 / V1 = 200 K · 500 ml / 300 ml = 285,7 K

5 0
3 years ago
Calculate the density of a substance with a mass of 0.0500g and volume of 6.40mL, round to the correct number of significant num
lozanna [386]
Density=mass/volume
Mass = 0.0500g
Volume = 6.40mL

0.0500g/6.40mL = 0.0078g/mL
5 0
2 years ago
What does this picture represent?​
Shtirlitz [24]

Answer:

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3 years ago
What type of energy does a cup sitting on a table have? Why?
Sedbober [7]

Answer:

POTENTIAL ENERGY

A cup sitting on a table possesses potential energy

Explanation:

Answer Expert Verified

5 0
3 years ago
Would be glad if you helped me!
Sindrei [870]
A) Fe⁰ ----> Fe⁺³ +3e⁻   oxidation        | *2
b) <u>Cu⁺² + 2e⁻ -----> Cu⁰  reduction      |*3</u>

c) 2Fe⁰ +3Cu⁺² -----> 2Fe⁺³ + 2Cu⁰
6 0
3 years ago
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