1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
julia-pushkina [17]
3 years ago
14

All energy originates from the _________.

Chemistry
2 answers:
ziro4ka [17]3 years ago
8 0

Answer:

The sun.

Explanation:

:)) :) :):)) :)

Basile [38]3 years ago
8 0

Answer:

A

Explanation:

All energy originates from the sun.

You might be interested in
To change state from gas to a liquid
Nostrana [21]
I believe the answer is condensation, correct me if I'm wrong
4 0
3 years ago
A gas sample in a rigid container at 455 K is brought to STP (273K and 1 atm). What was the original pressure of the gas in mmHg
Molodets [167]
1) V(CH₄) = 0,376 L.T(CH₄) = 304 K.p(CH₄) = 1,5 atm 101325 Pa/atm = 151987,5 Pa = 151,9875 kPa.R = 8,314 J/K·mol.Use ideal gas law: p·V = n·R·T.n(CH₄) = p · V ÷ R · T.n(CH₄) = 151,9875 kPa · 0,376 L ÷ 8,314 J/K· mol · 304 K.n(CH₄) = 0,0226 mol.V(CH₄) = n(CH₄) · Vm.V(CH₄) = 0,0226 mol · 22,4 dm³/mol.V(CH₄) = 0,506 dm³ = 0,506 L.
2) V(SO₂) = 5,2 L.p(SO₂) = 45,2 atm = 45,2 atm · 101,325 kPa/atm = 4579,89 kPa.T(SO₂) = 293 K.R = 8,314 J/K·mol.Use ideal gas law: p·V = n·R·T.n(SO₂) = p · V ÷ R · T.n(SO₂) = 4579,89 kPa · 5,2 L ÷ 8,314 J/K· mol · 293 K.n(CH₄) = 9,77 mol.There is not enogh SO₂, 225 mol - 9,77 mol = 215,23 mol is needed.
3) p(He) = 3,50 atm · 101,325 kPa/atm = 354,63 kPa.V(He) = 4,00 L.n(He) = 0,410 mol.R = 8,314 J/K·mol.Use ideal gas law: p·V = n·R·T.T = p · V ÷ R · n.T(He) = 354,63 kPa · 4,00 L ÷ 8,314 J/K· mol · 0,410 mol.T(He) = 416,14 K.n - amount of substance.
4) p(Ar) = 1,00 atm · 101,325 kPa/atm = 101,325 kPa.V(Ar) = 3,4 L.T(Ar) = 263 K.R = 8,314 J/K·mol.Use ideal gas law: p·V = n·R·T.n(Ar) = p · V ÷ R · T.n(Ar) = 101,325 kPa · 3,4 L ÷ 8,314 J/K· mol · 263 K.n(Ar) = 0,157 mol.n(Ar) = 0,157 mol + 2,5 mol = 2,657 mol.p(Ar) = 2,657 mol · 8,314 J/K· mol · 263 K ÷ 3,4 L.p(Ar) = 1708,74 kPa.
6 0
4 years ago
Which two substances are covalent compounds?
BARSIC [14]

Answer:

Option B is correct: C6H1206(s) and HCl(g)

8 0
3 years ago
Which set of elements represents a period within the Periodic Table?
topjm [15]
Which set of elements represents a period within the Periodic Table?


H, He, Ar , Xe , Rn ,


N, P, As, Sb , Bi


K, V, Fe, Ga , Kr

La, Pa, Sm, Tb, Yb Which set of elements represents a period within the Periodic Table?


H, He, Ar , Xe , Rn ,


N, P, As, Sb , Bi


K, V, Fe, Ga , Kr

La, Pa, Sm, Tb, Yb

6 0
3 years ago
What element is salsa
Sav [38]
A good element to nachos
3 0
3 years ago
Read 2 more answers
Other questions:
  • How many ml of cranberry juice is required to prepare a 25 ml 12% cranberry solution using a 20% cranberry stock solution?
    12·1 answer
  • Why do solids not mix well, but gases and liquids mix easily in most cases.
    15·2 answers
  • Which of the following elements is most likely to react?<br> A.Cu<br> B.Al<br> C.Li<br> D.Mg
    8·1 answer
  • How many grams of H2 are needed to react with 2.70 g of N2?
    14·1 answer
  • Calculate the volume 3.00 moles of a gas will occupy at 24.0˚C and 1.003 atm. *
    8·1 answer
  • An exothermic reaction causes the surroundings to A. warm up. B. become acidic. C. expand. D. decrease its temperature. E. relea
    13·1 answer
  • Which of the following is an Alkaline Earth Metal?
    13·2 answers
  • Which is an example of a homoozygous genotype? (There can be more than one answer)
    13·1 answer
  • Please help which one is it
    12·2 answers
  • What is the mass in grams of 4.85 x 1022 al atoms?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!