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oksano4ka [1.4K]
3 years ago
11

Which of the following is NOT a factor that determines how much energy we need?

Chemistry
2 answers:
german3 years ago
6 0

Answer:

B) The amount of vitamin D gained in 1 day.

Explanation:

Anastaziya [24]3 years ago
6 0
The amount of vitamin d
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What causes warm air to rise?
8090 [49]
A. The fact that it's less dense than cold air.
8 0
3 years ago
Read 2 more answers
If the imaginary element Blobbium (Bb) formed an acid with the formula H₃Bb, what should this acid be named? *
sveticcg [70]

Answer:

C

Explanation:

The non metal in HCl is Chlorine and the name of the acid is Hydrochloric acid.

H = hydro

Cl = chloric

So I imagine this new acid, yet to be discovered even by the crew of the Star Ship enterprise, would be

HydroBlobbic acid

I await news from Spock on how things are going on the discovery of such a thing. So far he has not said anything about it.

4 0
3 years ago
Write at least 5 different sentences each adjective describes: crystal_____, soluble_____, hard_________, solid_______,
rewona [7]

Answer:                                                                                                

  1. Definite shape, definite volume, definite melting point, high density,        incompressibility, and low rate of diffusion.
  2. The most obvious physical properties of a liquid are its retention of volume and its conformation to the shape of its container.
  3. When a liquid substance is poured into a vessel, it takes the shape of the vessel, and, as long as the substance stays in the liquid state, it will remain inside the vessel.
  4. There are four types of crystalline solids: ionic solids, molecular solids, network covalent solids and metallic solids.
  5. There are two types of liquid-liquid mixtures. They are: Homogeneous Liquid-Liquid Mixture. This is a type of liquid-liquid mixture whereby the two substances mix completely to from a single substance.
3 0
3 years ago
How many moles does 21. 7 L of gas at STP represent?
Oduvanchick [21]

Answer:

.96875 moles

Explanation:

22.4 liters per mole at STP for a gas

21.7 / 22.4 = .96875 moles

3 0
2 years ago
What mass of neon gas is required to fill a 5.00-L container to<br> a pressure of 1.02 atm at 25 °C?
sweet [91]

Answer:

m=4.21g

Explanation:

Hello,

In this case, by using the ideal gas equation:

PV=nRT

We can compute the mass of neon gas at the given conditions by firstly computing the moles and also considering the temperature in kelvins (298K):

n=\frac{PV}{RT}=\frac{1.02atm*5.00L}{0.082\frac{atm*L}{mol*K}*298K}\\  \\n=0.209mol

Finally, by using the atomic mass of neon gas (20.18g/mol) we compute the required mass to fill the 5.00-L container:

m=0.209mol*\frac{20.18g}{1mol}\\ \\m=4.21g

Best regards.

4 0
3 years ago
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