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Irina18 [472]
3 years ago
13

A balloon holds a certain volume of air. In what three ways can the volume of the balloon be increased?

Chemistry
1 answer:
Anastaziya [24]3 years ago
3 0

Answer:

Relating Pressure, Amount, and Temperature

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.950 L of .420 M H2SO4 is mixed with .900 L of .260 M KOH. What concentration of sulfuric acid remains after neutralization?
kipiarov [429]
H₂SO₄:

V=0,95L
Cm=0,420mol/L

n = CmV = 0,42mol/L * 0,95L = 0,399mol

KOH:

V=0,9L
Cm=0,26mol/L

n = CmV = 0,26mol/L * 0,9L = 0,234mol

H₂SO₄            +           2KOH ⇒ K₂SO₄ + 2H₂O
1mol                :           2mol
0,399mol         :           0,234mol
                                    limiting reagent
reamins: 0,399mol - 0,117mol = 0,282mol

n = 0,282mol
V = 0,950L + 0,900L = 1,85L

Cm = n / V = 0,282mol / 1,85L ≈ 0,152M
3 0
3 years ago
Electrolysis is an endothermic process when an electric current is passed through water and separates it into hydrogen and oxyge
azamat

Answer:

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Explanation:

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3 0
3 years ago
Would you expect an atom to have a charge?
puteri [66]

Answer:

An atom consists of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. The positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral.

4 0
1 year ago
What is the source of energy for the Sun?
nikitadnepr [17]

Answer:

Nuclear fusion

Explanation:

Nuclear fusion is the source of Sun's energy.. At the core where temperature and pressure are very high hydrogen atoms fuse into helium atom and release energy in the form of Gama rays.

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