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Bumek [7]
3 years ago
7

Please help thank you so much

Chemistry
1 answer:
gulaghasi [49]3 years ago
7 0

Answer:

option C

Explanation:

hope it helps!!!!!!!!!

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How will you test for the gas which is liberated when hcl reacts with an active metal ?
DENIUS [597]
When HCl reacts with a metal, hydrogen gas will be evolved. To test this gas, insert a burning splinter into the outlet of gas, the flame will be extinguished with a pop sound. This will confirm the gas is hydrogen.
8 0
3 years ago
In your second paragraph, describe properties of sound waves. Then make a claim about how loud an explosion in space should be.
morpeh [17]

Answer:

Here are five important characteristics: wavelength, amplitude, frequency, time period, and velocity. The wavelength of a sound wave can tell the distance that wave travels before it repeats itself. The wavelength itself is a longitudinal wave that show compression and rarefactions of sound waves.

Explanation:

Hope this helped please pick me brainliest

8 0
3 years ago
What is the temperature of 1.485 moles of N₂ gas at a pressure of 1.072 atm and a volume of 20 L?
morpeh [17]

Answer:

178.67K

Explanation:

PV=nRT

T=PV/nR

= 1.072atm*20L/1.485mol*0.0821LatmK^-1

=178.67K

8 0
4 years ago
What is the molarity of a solution that contain 1.1 miles of lithium in 0.5 liters of solution
Solnce55 [7]
1.1 Moles / 0.5 Liters = 0.22 Molarity
4 0
4 years ago
What is the partial pressure of radon if the total pressure is 780 torr and the
Brilliant_brown [7]

Answer:

0.03atm

Explanation:

Given parameters:

Total pressure  = 780torr

Partial pressure of water vapor  = 1.0atm

Unknown:

Partial pressure of radon  = ?

Solution:

A sound knowledge of Dalton's law of partial pressure will help solve this problem.

The law states that "the total pressure of a mixture of gases is equal to the sum of the partial pressures of the constituent gases".

Mathematically;

           P_{t}   =   P_{1}  + P_{2}   +   P_{n}

Since the total pressure is 780torr, convert this to atm;

                       760torr = 1 atm

                       780torr  = \frac{780}{760} atm  = 1.03atm

     For this problem;

Total pressure  = Partial pressure of radon + Partial pressure of water vapor

            1.03 = Partial pressure of radon + 1.0

  Partial pressure of radon  = 1.03 - 1.00  = 0.03atm

6 0
4 years ago
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