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stich3 [128]
3 years ago
12

What is the molarity of a 0.25-liter solution containing 52 grams of HBr? (1 point)

Chemistry
1 answer:
Pani-rosa [81]3 years ago
3 0

2.6 M hBr

This would be the correct answer.

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Which of the following best describes what causes the phases of the moon? The alignment of the sun, Earth, and moon The speed of
BlackZzzverrR [31]
The alignments of the planets would be the correct answer.<span />
6 0
3 years ago
HURRY! 10 POINTS!!
frosja888 [35]

Answer:

Weak bonds require less energy to form than strong bonds

Explanation:

According to Coulomb's law, the force between two species is inversely proportional to the distance between them. That said, the bigger the atoms are, the greater the bond length should be to form a molecule.

As a result, for a greater bond length, the attraction force is lower than for a shorter bond length. This implies that large atoms would form weak bonds and small atoms would form strong bonds.

Bond energy is defined as the amount of energy required to break the bond. If a bond is weak, it would require a low amount of energy to break it. This is also true for energy of formation, as it's the same process taking place in the opposite direction.

6 0
3 years ago
In the reaction C + O2 → CO2, 18 g of carbon react with oxygen to produce 72 g of carbon dioxide. What mass of oxygen would be n
artcher [175]
Stoichiomety:

1 moles of C + 1 mol of O2 = 1 mol of CO2

multiply each # of moles times the atomic molar mass of the compund to find the relation is weights

Atomic or molar weights:

C: 12 g/mol
O2: 2 * 16 g/mol = 32 g/mol
CO2 = 12 g/mol + 2* 16 g/mol = 44 g/mol

Stoichiometry:

12 g of C react with 32 g of O2 to produce 44 g of CO2

Then 18 g of C will react with: 18 * 32/ 12 g of Oxygen = 48 g of Oxygen

And the result will be 12 g of C + 48 g of O2 = 60 g of CO2.

You cannot obtain 72 g of CO2 from 18 g of C.

May be they just pretended that you use the law of consrvation of mass and say that you need 72 g - 18g = 54 g. But it violates the proportion of C and O2 in the CO2 and is not possible.
3 0
3 years ago
Read 2 more answers
Please answers the question​
frozen [14]
That is correct hope that helps
8 0
3 years ago
NaF + HCL=&gt; NACL + HF
Jobisdone [24]

Answer:

NaF + HCl --> NaCl + HF

Explanation:

hope it helps you

4 0
2 years ago
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