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Natasha2012 [34]
4 years ago
8

What charge do electrons have?

Chemistry
2 answers:
Crank4 years ago
4 0
Electrons have a negative. Protons have positive and neutrons have no charge
Alekssandra [29.7K]4 years ago
3 0

Electrons have a <em>negative</em> charge

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Label the following changes as Physical or
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Answer:

17

Two clear liquids mix and form a

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the rest im usure on.

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3 years ago
A balloon is filled with 1 mole of helium gas at 100 kPa of pressure and a
mylen [45]

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B) 0.025 m^{3}

Explanation:

Solution of the problem is in picture attached,

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3 years ago
2. A reaction vessel is charged with hydrogen iodide, which partially decomposes to molecular hydrogen and iodine:2HI (g) H2(g)
Deffense [45]

Answer:

The value of Kp at this temperature is 7.44*10⁻³

Explanation:

Chemical equilibrium is established when there are two opposite reactions that take place simultaneously at the same speed.

For the general chemical equation for a homogeneous gas phase system:

aA + bB ⇔ cC + dD

where a, b, c and d are the stoichiometric coefficients of compounds A, B, C and D, the equilibrium constant Kp is determined by the following expression:

Kp=\frac{P_{C} ^{c} *P_{D} ^{d} }{P_{A} ^{a} *P_{B} ^{b} }

Where Px is the partial pressure of each of the components once equilibrium has been reached and they are expressed in atmospheres. The equilibrium constant Kp depends solely on temperature and is dimensionless.

In the case of the reaction:

2 HI (g) ⇔ H₂ (g) + I₂ (g)

the equilibrium constant Kp is determined by the following expression:

Kp=\frac{P_{H_{2} } *P_{I_{2} } }{P_{HI} ^{2} }

The system comes to equilibrium at 425 °C, and

  • PHI = 0.794 atm
  • PH2 = 0.0685 atm
  • PI2 = 0.0685 atm

Replacing:

Kp=\frac{0.0685*0.0685}{0.794^{2} }

Kp=7.44*10⁻³

<u><em>The value of Kp at this temperature is 7.44*10⁻³</em></u>

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3 years ago
What two properties affect the<br> density of ocean water?
mihalych1998 [28]

Answer: temperature and salinity.

Explanation:

5 0
2 years ago
Which gas law states that the pressure of a gas decreases when volume is increased and the temperature is unchanged
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P∝\frac{1}{V}       at constant temperature

or If the pressure of gas is decreased, the volume increases if the temperature is unchanged and If the pressure of gas is increased, the volume decreases if the temperature is unchanged.

P_1V_1=P_2V_2

3 0
4 years ago
Read 2 more answers
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