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pentagon [3]
3 years ago
9

Describe your theories on time travel. Will it exist? If so, how? If not, explain why.

Chemistry
2 answers:
gregori [183]3 years ago
7 0

Answer:

Personally no...

Explanation:

The ability to go back in time or go into the future could case our measurement of time to shift, and the thin vail of our time could be broken through that soooo yeah

Schach [20]3 years ago
3 0
Tbh. I feel like the government knows about it but is hiding it. Speed is the key to it all.
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The rising and setting of the moon is mostly caused by?
Anna11 [10]
The moon orbiting around the earth. 
5 0
4 years ago
1. (8.5d) A compound has a formula Mg:(PO.). Which best describes the atoms that make up this compound?
Masja [62]

Answer:(8.5d) A compound has a formula Mg:(PO.). Which best describes the atoms that make up this compound? A. B. Atom Magnesium (Mg) phosphorus (0) Oxygen (0)

Explanation:

4 0
2 years ago
Which of the following statements about natural resources is correct
trasher [3.6K]

Answer:

The right choice is "wind power requires a lot of space and depends on local weather patterns "

Explanation:

  1. solar power produces harmful chemicals
  • it is incorrect because solar power doesn't produce any chemicals

    2. geothermal power requires more land than other power plants  

  •   it is incorrect because geothermal power requires digging a stable 5 km-deep shaft not a land

    3. nuclear power produces small amounts of energy from large masses

  • it is incorrect because nuclear power produces large amounts of energy from small masses.

So the right choice is "wind power requires a lot of space and depends on local weather patterns "

7 0
3 years ago
How many grams of chlorine gas are present in a 150. liter cylinder of chlorine held at a pressure of 1.00 atm and 0. °C? Group
OlgaM077 [116]

Answer:

474 grams of chlorine gas are present in a 150 liter cylinder of chlorine held at a pressure of 1.00 atm and 0 °C

Explanation:

An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:  

P*V = n*R*T

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas.

In this case:

  • P= 1.00 atm
  • V= 150 L
  • n= ?
  • R= 0.082 \frac{atm*L}{mol*K}
  • T= 0 C= 273 K

Replacing:

1.00 atm* 150 L= n*0.08206 \frac{atm*L}{mol*K} *273 K

Solving:

n=\frac{1.00 atm* 150 L}{0.08206 \frac{atm*L}{mol*K}*273 K}

n= 6.69 moles

Being Cl= 35.45 g/mole, the molar mass of chlorine gas is:

Cl₂=2*35.45 g/mole= 70.9 g/mole

So if 1 mole has 70.9 grams, 6.69 moles of the gas, how much mass does it have?

mass=\frac{6.69 moles*70.9 grams}{1 mole}

mass= 474.321 grams ≅ 474 grams

<u><em>474 grams of chlorine gas are present in a 150 liter cylinder of chlorine held at a pressure of 1.00 atm and 0 °C</em></u>

4 0
3 years ago
What is the correct formula for glucose? A) CO2H2O B) C6H12O6 C) CHO D) CO2 + H2O
chubhunter [2.5K]

Answer:

It's B  !

Explanation:

Formulas. The molecular formula for glucose is C6H12O6. This means that there are 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms bonded together to make one molecule of glucose.

Hope this helps!!

8 0
3 years ago
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