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Alex73 [517]
3 years ago
8

- What is the mass of the following particles: o Protons o Neutrons o Electrons

Chemistry
1 answer:
anastassius [24]3 years ago
6 0

Answer:

the answer is:

Explanation:

Relative mass:

electron:0

proton: 1

neutron: 1

actual mass (g):

electron:9.11×10^-28

proton and neutron: 1.67 × 10^-24

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A balloon is launched when the temperature is 15 oC and the pressure is 0.918 atm. Its volume is 11.1 L. It rises in the air unt
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Answer:

The new volume is 7,606.96 Liter.

Explanation:

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas in the balloon = 0.918 atm

P_2 = final pressure of gas in the balloon = 0.0012 atm

V_1 = initial volume of gas in the balloon = 11.1 L

V_2 = final volume of gas in the balloon = ?

T_1 = initial temperature of gas in the balloon = 15^oC=273+15=288K

T_2 = final temperature of gas in the balloon = -15^oC=273-15=258K

Now put all the given values in the above equation, we get:

\frac{0.918 atm\times 11.1 L}{288 K}=\frac{0.0012 atm\times V_2}{258 K}

V_2=\frac{0.918 atm\times 11.1 L\times 258 K}{288 K\times 0.0012 atm}

V_2=7,606.97 L

The new volume is 7,606.96 Liter.

5 0
3 years ago
Explain how stagnant sulfureted water may greatly accelerate metallic corrosion. (See the Email Link in Moodle) | (7 marks)
slavikrds [6]

Answer:

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6 0
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Which best explains why collective bargaining increases the bargaining power of workers?
m_a_m_a [10]
In the above question, options are not given so the answer has been generalized.

Collective bargaining power gives rights to the workers to put their demands in front of employer in a better way. It puts the workers and employers on the same level.
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Answer:

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Explanation:

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