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Ugo [173]
3 years ago
15

Which of the following would be a clue that a rock is igneous?

Chemistry
2 answers:
ryzh [129]3 years ago
7 0

Answer:

A

Explanation:

they usually have that Crystal like thing in them... since they are formed from Lava

Sholpan [36]3 years ago
4 0
I think it A hope this helps
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The half-life of tritium (H-3) is 12.3 years. If 48.0mg of tritium is released from a nuclear power plant during the course of a
Amiraneli [1.4K]

Answer:

Explanation:

it is tough question plz give me some time i would give you your ans soon

3 0
2 years ago
An aqueous solution in a 55 gallon (208 l drum), characterized by minimal buffering capacity, received 4kg of phenol and 1.5 kg
lianna [129]

An aqueous solution in a 55 gallon (208 l drum), characterized by minimal buffering capacity, received 4kg of phenol and 1.5 kg of sodium phenate. What is the ph of the solution. The pka of phenol = 9.98. Mw of phenol and sodium phenate are 94 g/mol and 116 g/mol, respectively.


Volume of solution = 55 gallons = 208.2 L [ 1 gallon = 3.78 L]

moles of phenol = mass / molar mass = 4000 g / 94 = 42.55 moles

moles of sodium phenate = mass / molar mass = 1500 / 116 = 12.93 moles

pKa of phenol = 9.98

We know that the pH of buffer is calculated using Hendersen Hassalbalch's equation

pH = pKa + log [salt] / [acid]

volume is same for both the sodium phenate and phenol has we can directly take the moles of each in the formula

pH = 9.98 + log [12.93 / 42.55] = 9.46



4 0
3 years ago
Please answer this. Look at the picture for the questions, Thanks!
kenny6666 [7]
The water molecules are moving so slow that they end up sticking together to form a solid
4 0
2 years ago
Hydrogen bonds can be found between molecules of which of the following
Lilit [14]

Answer:

The presence of hydrogen bonding between molecules of a substance indicates that the molecules are polar. This means the molecules will be soluble in a polar solvent such as water. Some examples of polar molecules which can hydrogen bond are ammonia ( NH3 ) and methanol ( CH3OH ).

I think the answer should be C

4 0
3 years ago
Read 2 more answers
A truck was carrying a substance tank. The molecules of that substance were moving away from each other. The molecules truck par
svetoff [14.1K]

Answer:

Molecules of matter such as liquid, gas and solid still move even if the energy is transferred because it isn't a hundred percent. There is still energy and the time it took to transfer that said energy would have changed its state of matter.

Explanation:

Solid -the molecules are tight together. (touching)

Liquid - the molecules are close but not touching about mid way(not to far not to close)

Gas- the molecules in gasses are far apart.

It almost always goes from solid to liquid to gas. but in extreme conditions it could be different.

If it helped please give a thanks on the thanks button

Hope you have a wonderful day :)  

5 0
2 years ago
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