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alexgriva [62]
3 years ago
12

Which of the following claims is a correct statement based on the data in the Reason for Earth’s Seasons activity?

Chemistry
1 answer:
Nitella [24]3 years ago
3 0

Answer: the second one " the seasons are caused by the tilt of earth's axis and how much solar radiation each area of earth receives. "

Explanation:

i took the test on k12.

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What does an atomic number represent in an atom? number of neutrons number of protons number of electrons number of protons and
mr Goodwill [35]

Answer:

The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.

8 0
3 years ago
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What is a molarity a measurement
USPshnik [31]

Answer:

Molarity indicates the number of moles of solute per liter of solution and is one of the most common units used to measure the concentration of a solution.

Explanation:

8 0
4 years ago
If 14 moles of gas are added to a container that already holds 1 mole of gas, the pressure inside the container _ due to change
ioda

Answer:

The pressure inside the container will increase by increasing the amount of gas.

Explanation:

It can be better understand through ideal gas equation,

PV = nRT

By keeping the volume and temperature constant, the pressure of gas in container will increase when amount of gas goes to increase.

PV = nRT

P = nRT / V

P = (1+ 14) RT/V

P = 15

The pressure will increase 15 fold.

3 0
3 years ago
If 10.0 moles of sulfur dioxide react with excess chlorine gas, what is the theoretical yield (in grams) of CI2O produced?
xz_007 [3.2K]

Answer:

869 g Cl₂O

Explanation:

To find the theoretical yield of Cl₂O, you need to (1) convert moles SO₂ to moles Cl₂O (via mole-to-mole ratio from reaction coefficients) and then (2) convert moles Cl₂O to grams Cl₂O (via molar mass). It is important to arrange the conversions/ratios in a way that allows for the cancellation of units (the desired unit should be in the numerator). The final answer should have 3 sig figs to reflect the sig figs of the given amount (10.0 moles).

1 SO₂ (g) + 2 Cl₂ (g) ----> 1 SOCl₂ (g) + 1 Cl₂O (g)

Molar Mass (Cl₂O): 2(35.453 g/mol) + 15.998 g/mol

Molar Mass (Cl₂O): 86.904 g/mol

10.0 moles SO₂         1 mole Cl₂O            86.904 g
------------------------  x  ----------------------  x  ------------------  = 869 g Cl₂O
                                    1 mole SO₂              1 mole

6 0
2 years ago
Indicate whether each of the following statements about Joseph Priestley’s experiment is an observation or an inference.
Genrish500 [490]

Answer:

Inference  — The candle stayed lit longer because the plant gave off oxygen.

Observation — The candle went out when it was placed in a closed jar.

Observation — The candle stayed lit longer in closed jar when a plant was present.

Explanation:

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(If helpful)

4 0
3 years ago
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