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Mazyrski [523]
3 years ago
10

Which best explains why ice floats

Chemistry
2 answers:
Misha Larkins [42]3 years ago
7 0
It lowers density thats why its able too float :)
Vadim26 [7]3 years ago
6 0
Ice floats because of the small air particles that are inside of the ice. The fewer air particles and the ice won't float. The more and the ice will float.
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A chemistry student needs 90.0mL of carbon tetrachloride for an experiment. By consulting the CRC Handbook of Chemistry and Phys
olasank [31]

Answer:

volume = mass/density

 

Here, volume = 80g/1.59gcm-3 → 50.314 cm3

Explanation:

3 0
2 years ago
The undersea mountain chain where magma rises from and where new ocean floor is produced is called?
liberstina [14]

Answer:

mid-ocean ridges

Explanation:

Seafloor spreading occurs along mid-ocean ridges—large mountain ranges rising from the ocean floor.

5 0
3 years ago
If 10 grams of potassium chlorate decompose to form potassium chloride and oxygen gas inside a 500 mL container at a temperature
Gekata [30.6K]

Answer:

10 atm

Explanation:

There's a lot to do here, but lets take it one step at a time. First, let's write a balanced equation for the decomposition of potassium chlorate into potassium chloride and oxgyen gas.

2 KClO3 → 2 KCl + 3 O2

Now let's find the moles of the KClO3 (molar mass 122.55 g/mol) that we have take 10 g/122.55 g/mol, grams will cancel and we are left with 0.0816 moles. lets divide that by two since we have a two in front of the KClO3 in the equation, and then multiply that number by 5 since it's the total moles of products, in summary, multiply by 5/2 to get 0.204 moles.

Now that we know the moles of our products, let's plug some stuff into the ideal gas law PV = nRT. We are looking for P so let's solve for that. P = (nRT)/V, now let's plug in our values. Make sure V is converted to liters so 0.5 L. And convert celcius to kelvin by adding 273

P = ((0.204 moles)(318 K)(0.08206 L atm mol^-1 K^-1))/0.5 L

A lot of units cancel, and we get about 10.65 atm, if you don't want the answer in atm, you can find a conversion equation. But let's round to sig figs for now, which will bring us to 10 atm.

3 0
1 year ago
An 85 kg construction worker has 37 485 J of gravitational potential energy. To the nearest whole number, the worker is___
Dmitry [639]

Answer:

44,1 m

Explanation:

Ep= m * g * h

37485 = 85 * 10 * h

h = 44,1 m

7 0
3 years ago
Please help!!! ill mark u brainly
Musya8 [376]

Answer: I say it is A sorry if I'm incorrect

Explanation:

8 0
3 years ago
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