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Sergeeva-Olga [200]
3 years ago
7

What may form when magma comes to the surface?

Chemistry
1 answer:
vivado [14]3 years ago
3 0

Answer:

a volcano

Explanation:

k12

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Considering the chart shown, at what temperature does the substance boil? 200ºC 1,200ºC 2,200ºC 2,400ºC
kodGreya [7K]

Answer:

The answer is 2,200ºC

Explanation:
I took the assignment for Edge, I don't think I can send the image because it might pick up on that and get reported, sorry!

The only other rationale that I have is that it's boiling because the graph shows that it's at a constant temperature/rate at 2,200ºC for quite a while. Typically when something boils, it stays at that constant rate of boiling, unless you turn the temperature up or it's finally able to peak..?

8 0
3 years ago
Radioactive americium-241 is used in household smoke detectors and in bone mineral analysis.
Varvara68 [4.7K]

Answer:

Electrons- 95

Protons- 95

Neutrons-146

Explanation:

An atoms is made up of three fundamental particles; electrons, protons and neutrons,

Americium belongs to the f block in the periodic table. It is an actinide element.

An atom of Am-241 contains 95 protons, 95 electrons and 146 neutrons.

4 0
3 years ago
A sample of an unknown solid is found to have a volume of 24.3 cm3 and a mass of
blondinia [14]
<h2>Answer:  8.93 g/cm³ </h2>

<h3>Explanation: </h3>

Density = mass ÷ volume  

           = 217.0 g ÷ 24.3 cm³  

           = 8.93 g/cm³

∴ the unknown sample of mass 217.0 grams and volume of 24.3 cm³ has a density of 8.93 g/cm³.

5 0
3 years ago
Oxygen gas is collected at a pressure of 1.21 atm in a container which has a volume of 10.0 L. What temperature (in Kelvin) must
stiv31 [10]

Answer : The temperature of gas is, 295 K

Explanation :

To calculate the temperature of gas we are using ideal gas equation:

PV=nRT

where,

P = Pressure of gas = 1.21 atm

V = Volume of gas = 10.0 L

n = number of moles = 0.500 mole

R = Gas constant = 0.0821L.atm/mol.K

T = Temperature of gas = ?

Now put all the given values in above equation, we get:

1.21atm\times 10.0L=0.500mole\times (0.0821L.atm/mol.K)\times T

T=294.8Kapprox 295K

Therefore, the temperature of gas is, 295 K

5 0
3 years ago
Where do the OH- ions go as additional acid is added?
qwelly [4]
The result when the OH- ions go as additional acid is added is that t<span>hey remain in solution but change concentration. </span>This is because  when you add more acid to hydroxide, it will change its concentration due to the acidity added.
8 0
3 years ago
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