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Vesna [10]
3 years ago
10

Suppose you place a hot pack into a vacuum chamber and the hot pack caused the temperature to rise from 21 degrees to 23 degrees

Celsius. If the
pressure was initially 1 atmosphere, what equation would you use to determine the new pressure at the new temperature? Assume volume, and quantity of
gas are held constant.
Select one:
a. P1/T1 = P2/T2
b. P1V1 = P2V2
c. P1T1 = P2T2
d. P1n1 = P2N2
Chemistry
1 answer:
Marizza181 [45]3 years ago
7 0

Answer:

A

Explanation:

Pressure and Temperature have to be divided by each each other because they are directly related.

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What is the result when earth layers experience extension stress? Question 2 options:
Vika [28.1K]

Answer:

stretching and thinning of the Earth's crust occurs.

Explanation:

The result of the extension stress on Earth layers is the stretching and thinning of the Earth's crust occurs.

When there is a stress on the Earth's layers, the Earth's crust experiences the phenomena of stretching and thinning.

4 0
2 years ago
(Please help will mark brainliest!)
arsen [322]

We know that Weighted atomic mass of Element is Calculated based upon their existence of isotopes and the Relative abundance of these isotopes.

Given that the Element X is Composed of :

Isotope                       Relative abundance                   Atomic Mass

⁵⁵X                                        70%                                               55

⁵⁶X                                        20%                                               56

⁵⁷X                                        10%                                                57

Weighted Atomic Mass of Element X :

= (0.70)(55) + (0.20)(56) + (0.10)(57)

= 38.50 + 11.2 + 5.70

= 55.4

So, the Weighted Atomic Mass of Element X is 55.4

6 0
3 years ago
How many grams of Cl are in 485g of CaCl2
Oksana_A [137]
329g Cl (You're welcome :D)
6 0
3 years ago
An electron transport chain pumps __________ across a membrane while transferring __________ from one chemical to another. View
timama [110]

Answer:

The correct option is: protons; electrons

Explanation:

The electron transport chain contains a series of biomolecules that are involved in the transfer of electrons by redox reactions.

This process involves the transfer of electrons from an <u>electron donor molecule to an electron acceptor molecule</u>, resulting in the <u>release of energy.</u> Some amount of this energy is then used in <u>pumping the protons across the biological membrane.</u>

5 0
3 years ago
A 2000 g sugar-water solution contains 200 g of sugar. The concentration of the solution by mass is
dalvyx [7]
The answer is C, 10%.
3 0
2 years ago
Read 2 more answers
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