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3 years ago

In what phase is the moon if it is gaining light and less than half illuminated

Chemistry

1 answer:

Nat2105 [25]3 years ago

7 0

Answer: Crescent

Explanation: Image result for In what phase is the moon if it is gaining light and less than half illuminated

Crescent Moons are when it's less than half illuminated, and gibbous when it's more than half. “Waxing” means that the Moon becomes more illuminated night-by-night, and the term “waning” means that it's getting less illuminated each night.

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CO2 + NaOH <=> NaHCO3 Balance

NeTakaya

Answer:

Explanation:

It is balaned

Left side

1 Na

1 C

3 Os

1 H

=========

Right side

1 Na

1 H

1 C

3 Os

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3 years ago

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Who is known as the "father of modern chemistry” because he first organized all known elements into four different groups? Johan

Sonja [21]

Answer:

Explanation:

the answer is not D

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3 years ago

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If a piece of metal has a density of 9.865 g and a volume of 14 ml, what is its mass?

vodka [1.7K]

Answer:

I think the answer is 138.11 gram

Explanation:

8 0

3 years ago

This diagram shows a marble with a mass of 3.8 grams (g) that was placed into 10 milliliters (mL) of water.

ryzh [129]

Complete Question:

This diagram shows a marble with a mass of 3.8 grams (g) that was placed into 10 milliliters (mL) of water. Using the formula V M D = , what is the density of the marble?

(See attachment for full diagram)

Answer:

1.27 g/cm³

Explanation:

First, find the volume of rock:

Volume of rock = volume of water after rock was placed - volume of water before rock was placed

Volume of rock = 13 - 10 = 3ml

Density of rock = grams of rock per 1 cm³

Note: 1 ml = 1 cm³

Let x represent amount of rock per 1 cm³

Thus,

3.8g = 3 cm³

x = 1 cm³

Cross multiply

1*3.8 = 3*x

3.8 = 3x

3.8/3 = 3x/3

1.27 = x

Density of rock = 1.27 g/cm³

3 0

3 years ago

Be sure to answer all parts. Consider the reaction 2SO2(g) + O2(g) ⇌ 2SO3(g)ΔH = −198.2 kJ/mol How would the concentrations of S

andrew-mc [135]

Answer:

[SO2]: The concentration increases

[O2]: The concentration increases.

[SO3]: The concentration decreases.

[SO2]: The concentration decreases.

[O2]: The concentration decreases.

[SO3]: The concentration increases.

[SO2]:There is no change.

[O2]: There is no change.

[SO3]: There is no change

Explanation:

For an exothermic reaction, increase in temperature decreases the concentration of products and increases the concentration of reactants since increase in temperature shifts the equilibrium position to the left hand side.

Increase in pressure and decrease in volume will shift the equilibrium position towards the right hand side which means more SO3 in the system.

Catalyst increases the rate of forward and reverse reaction simultaneously hence at equilibrium, the concentration of reactants and products remain unchanged.

4 0

3 years ago