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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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You have 56.8 mL of a gas collected at 664 mmHg and 135 K. What volume will it occupy at 632 mmHg and 196 K? *
tensa zangetsu [6.8K]

Answer:

86.6 mL

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 56.8 mL

Initial pressure (P₁) = 664 mmHg

Initial temperature (T₁) = 135 K

Final pressure (P₂) = 632 mmHg

Final temperature (T₂) = 196 K

Final volume (V₂) =?

The final volume of the gas can be obtained as follow:

P₁V₁/T₁ = P₂V₂/T₂

664 × 56.8 / 135 = 632 × V₂ / 196

Cross multiply

135 × 632 × V₂ = 664 × 56.8 × 196

85320 × V₂ = 7392179.2

Divide both side by 85320

V₂ = 7392179.2 / 85320

V₂ = 86.6 mL

Therefore, the final volume of the gas is 86.6 mL

5 0
3 years ago
3. Which statement describes the charge and location of
nirvana33 [79]

Answer:

C) An electron has a negative charge and is located outside the nucleus.

6 0
4 years ago
Name an atom that loses one electron when it reacts to another atom
Hitman42 [59]
Lithium, Sodium, Potassium; any of the Alkali Metals, which are farthest left on the periodic table. This is because they only have one electron in their outermost shell, so they would rather lose an electron rather than try to gain 7 to achieve that full outer shell.
4 0
3 years ago
Make sure to explain your answer to each question part.
Vladimir [108]
I have the same question why can’t I accept this comment HELPPP 3737
7 0
3 years ago
An unknown metal with a mass of 54.0 g required 773 J of energy in order to change its temperature from 63.0 C to 100.0 C. What
Vitek1552 [10]

Answer:

Metal is copper.

Explanation:

Mass of a metal, m = 54 g

Heat energy required, Q = 773 J

The temperature changes from 63.0 °C to 100.0 °C.

We need to identify the metal. Heat required to raise the temperature is given by :

Q=mc\Delta T

c is specific heat of the metal

We can identify the metal by finding its specific heat.

c=\dfrac{Q}{m\Delta T}\\\\c=\dfrac{773}{54\times (100-63)}\\\\=0.386\ J/g^{\circ} C

The metal is copper. Its specific heat is 0.386\ J/g^{\circ} C.

8 0
3 years ago
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