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spin [16.1K]
3 years ago
11

What is mostly made up of solid water?

Chemistry
1 answer:
docker41 [41]3 years ago
6 0

Answer:

ice

Explanation:

FREEZE WATER, YOU GET ICE

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Would the boiling point of water at 0.5 atm be lower, the same, or higher than the
dsp73

Answer:

Lower.

Explanation:

When you lower the pressure of water, it will usually decrease the boiling point. So, the higher you are on Earth, the lower the boiling point of H2O becomes.

3 0
3 years ago
Which of the following is the correct rank order of the diffusion rates of either Cl2 or H2S through air at a pressure of 1.0 at
Radda [10]

Answer:

Cl2 at 250 K < Cl2 at 300 K < H2S at 250 K < H2S at 300 K.

Explanation:

3 0
3 years ago
Place these in order from smallest to largest.
Eva8 [605]

Answer:

Atom, Sub atomic particle, compound, molecule

7 0
3 years ago
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb of energy
umka21 [38]

Answer:

See explanation below

Explanation:

First, you are not providing any data to solve this, so I'm gonna use some that I used a few days ago in the same question. Then, you can go and replace the data you have with the procedure here

The concentration of liquid sodium will be 8.5 MJ of energy, and I will assume that the temperature will not be increased more than 15 °C.

The expression to calculate the amount of energy is:

Q = m * cp * dT

Where: m: moles needed

cp: specific heat of the substance. The cp of liquid sodium reported is 30.8 J/ K mole

Replacing all the data in the above formula, and solving for m we have:

m = Q / cp * dT

dT is the increase of temperature. so 15 ° C is the same change for 15 K.

We also need to know that 1 MJ is 1x10^6 J,

so replacing all data:

m = 8.5 * 1x10^6 J / 30.8 J/K mole * 15 m = 18,398.27 moles

The molar mass of sodium is 22.95 g/mol so the mass is:

mass = 18,398.27 * 22.95 = 422,240.26 g or simply 422 kg rounded.

5 0
4 years ago
Why the bond in water molecule os polar covalent bond, while than in chlorine molecule is pure covalent bond? Give reason? ​
erastovalidia [21]

Explanation:

The unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that a water molecule has two poles - a positive charge on the hydrogen pole (side) and a negative charge on the oxygen pole (side). We say that the water molecule is electrically polar.

8 0
3 years ago
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