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2 years ago

PLEASE HELP!!!!!

Chemistry

1 answer:

Doss [256]2 years ago

6 0

A) an acid because it turns the paper blue

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The Atomic Mass of Al is 26.98154 g/mol. Is it possible to have 5.0 × 10^-25 g of Al? Explain.

Lesechka [4]

<span>If a mole of aluminum weighs 26.98 grams, that means 1 atom of aluminum weighs = (26.98 g/mole) / (6.023 x 10^23 atoms/mole) = 4.479 x 10^-23 grams,

</span>so, it is not possible because 1 atom weighs that much we calculated which is <span>almost 100 times more than the amount you mentioned</span>

8 0

1 year ago

Choose the option from the drop-down menus that is best described by each statement. Involves combining of nuclei: Produces dang

earnstyle [38]

Answer:

1: Nuclear Fusion

2: Nuclear Fission

3: Nuclear Fusion

4: Both

5: Nuclear Fusion

6: Nuclear Fission

Explanation:

Trust me dawg

8 0

2 years ago

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Moving from boron to carbon, the intensity of the bulb __

AleksandrR [38]

Explanation:

The thickness of the frosting Moving from boron to carbon, the intensity of the bulb blank because Z increases from blank to blank. The thickness of the frosting blank because the core electron configuration is the same for both atoms. because the core electron configuration is the same for both atoms.

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1 year ago

Air fills a room with a volume of 5600 L. Atmospheric pressure is 740 torr. What will be the pressure if all of the gas is pumpe

Lapatulllka [165]

Answer:

$P_2 = 6.9\times 10^3 kpa$

Explanation:

Assuming that temperature is constant

According to Boyle's Law, at constant temperature pressure is inversly proportional to the volume and mathematically it can be expressed as:

$P_1V_1 = P_2V_2$ ..........1

$P_1=740torr$

$P_2=?$

$V_1=5600L$

$V_2=80L$

from the first equation after putting all the value

we get,

$P_2=51800torr =6906098.7Pa=6.91 \times 10^3 kpa$

$P_2 = 6.9\times 10^3 kpa$

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2 years ago

Soda drinks bubble when the bottle is opened because:

mihalych1998 [28]

Answer:

(3) the partial pressure of carbon dioxide above the solution is reduced.

Explanation:

We know , Soda water contains pressured carbon dioxide pressured with cap because we know according to Henry's law partial pressure of the gas is directly proportional to pressure applied. Therefore, $CO_2$ is pressurized in the bottle.

But as we open the bottle the pressure decreases the excess $CO_2$ (and air) escapes producing effervescence and partial pressure of $CO_2$ decreases. ( Because of Henry's Law)

Hence, it is the required solution.

7 0

2 years ago