3 years ago

Which of the following is true?

Chemistry

2 answers:

saveliy_v [14]3 years ago

7 0

Answer:

Its D) Gas atoms heated to a high temperature emit white light .

Explanation:

Hunter-Best [27]3 years ago

3 0

C. Gas atoms under high pressure emit dark lines against a continuous spectrum

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A pressure cooker contains 5.68 L of air at a temperature of 390 4K if the absolute pressure of the air in the pressure cooker i

Cloud [144]

Answer:

3.59x10⁻⁴ mol

Explanation:

Assuming ideal behaviour we can solve this problem by using the PV=nRT formula, where:

P = 205 Pa

V = 5.68 L

n = ?

R = 8314.46 Pa·L·mol⁻¹·K⁻¹

T = 390.4 K

We input the data given by the problem:

205 Pa * 5.68 L = n * 8314.46 Pa·L·mol⁻¹·K⁻¹ * 390.4 K

And solve for n:

n = 3.59x10⁻⁴ mol

6 0

3 years ago

Can anybody do this?

lukranit [14]

Answer:

0.17907

Explanation:

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3 years ago

Using the table above, find the average atomic mass of the element. Then, using the periodic table, determine which element is s

lara [203]

Answer:

Chlorine

Explanation:

The abundance of chlorine-35 is 75% and the abundance of chlorine-37 is 25%.
Chlorine for example has two naturally occurring isotopes: Chlorine-35 and chlorine-37.
Chlorine's atomic mass is 35.453 u.

7 0

3 years ago

Read 2 more answers

Will give brainliest

Allisa [31]

Answer:

12.5

1.95x10^-10

1.5

0.5

in that order

Explanation:

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3 years ago

Which climate has subclimates with humid summers as well as subclimates with long, bitterly cold winters?

EleoNora [17]

Answer:

temperate marine

Explanation:

this is the only climate that has mild summers, but cold winters.

3 0

3 years ago