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2 years ago

10 uses of water good answer

Chemistry

2 answers:

lord [1]2 years ago

7 0

Answer:

drinking,washing clothes ,washing dishes ,cooking,watering plants,cleaning ,for generation of hydroelectricity,washing vehicles,aquatic life,bathing

Explanation:

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Vikentia [17]2 years ago

5 0

Answer:

For drinking.

For cleaning dishes.

For cooking.

for watering plants.

for washing clothes.

for bathing.

for generation of hydroelectricity.

for washing car.

making our dog bath

it helps in maintaining osmotic rate in humans

Explanation:

Hope this helps u

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Convert 121 Cal to kilowatt-hours

gulaghasi [49]

Answer:

here

Explanation:

0.000141 to kilowatt-hours. hope this helped

6 0

2 years ago

Which of the following is a salt that will form from the combination of a strong base with a weak acid?

zaharov [31]

Answer:

A. NaHCO₃

Explanation:

NaHCO₃ ⇒ NaOH + H₂CO₃

NaOH is a strong base and H₂CO₃ is a weak acid. Therefore, NaHCO₃ is a salt of a strong base-weak acid reaction. The salt is basic because carbonic acid (H₂CO₃) is a weak acid so it remains undissociated. So, there is a presence of additional OH⁻ ions that makes the solution basic.

Hope that helps.

8 0

2 years ago

Consider the following reaction: A(g)⇌2B(g). Find the equilibrium partial pressures of A and B for each of the following differe

Illusion [34]

Answer:

a. Kp=1.4

$P_{A}=0.2215 atm$

$P_{B}=0.556 atm$

b.Kp=2.0 * 10^-4

$P_{A}=0.495atm$

$P_{B}=0.00995 atm$

c.Kp=2.0 * 10^5

$P_{A}=5*10^{-6}atm$

$P_{B}=0.9999 atm$

Explanation:

For the reaction

A(g)⇌2B(g)

Kp is defined as:

$Kp=\frac{(P_{B})^{2}}{P_{A}}$

The conditions in the system are:

A B

initial 0 1 atm

equilibrium x 1atm-2x

At the beginning, we don’t have any A in the system, so B starts to react to produce A until the system reaches the equilibrium producing x amount of A. From the stoichiometric relationship in the reaction we get that to produce x amount of A we need to 2x amount of B so in the equilibrium we will have 1 atm – 2x of B, as it is showed in the table.

Replacing these values in the expression for Kp we get:

$Kp=\frac{(1-2x)^{2}}{x}$