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4 years ago

Select all the correct answers.

Chemistry

2 answers:

rjkz [21]4 years ago

7 0

Answer:

For Plato users it is A

HClO3 + LiOH → LiClO3 + H2O

Explanation:

stich3 [128]4 years ago

6 0

Answer : The products of the acid-base reaction between $HClO_3$ and LiOH are, $LiClO_3$ and $H_2O$

Explanation :

Neutralization reaction : It is a type of chemical reaction in which an acid react with a base to give salt and water as a product that means it reacts to give a neutral solution. It is also known as acid-base reaction.

The acid-base reaction will be:

$HClO_3+LiOH\rightarrow LiClO_3+H_2O$

Therefore, the products of the acid-base reaction between $HClO_3$ and LiOH are, $LiClO_3$ and $H_2O$

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How many moles of water will be produced when 8 moles of ethane are burned?

sineoko [7]

Answer:

The number of moles of water will be produced when 8.0 moles of ethane are burned = 24.0 mol.

Explanation:

It is a stichiometry problem.

The balanced equation of burning ethane is:

2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O

It is clear that 2.0 moles of ethane (C₂H₆) burns in 7.0 moles of oxygen and produce 4.0 moles of CO₂ and 6.0 moles of H₂O.

<em><u>Using cross multiplication:</u></em>

2.0 moles of ethane produces → 6.0 moles of H₂O, from the stichiometry.

8.0 moles of ethane produces → ??? moles of H₂O.

∴ The number of moles of water will be produced when 8.0 moles of ethane are burned = (6.0 x 8.0) / (2.0) = 24.0 mol.

3 0

3 years ago

Which of the following statements explains why atoms are always neutral in charge

laila [671]

Answer:

D. They have the same number of protons as electrons.

Explanation:

Protons are found in the nucleus of the atom and have a positive charge while electrons orbit around the nucleus and have a negative charge. Usually, in a neutral atom of an element, the number of protons is equal to the number of electrons. This is why the atom has no charge because the positive and negative charges cancel out. When an atom loses an electron its charge turns positive while when it gains an electron its charge turns negative.

6 0

1 year ago

Write the molecular equation and net ionic equation for the reaction of hydroiodic acid and potassium hydroxide. Include phases

xz_007 [3.2K]

Answer:

Explanation:

Molecular equation for the reaction:

HI(aq) + KOH(aq) --> KI(aq) + H2O(l)

Ionic equation

K+(aq) + OH-(aq) + H+(aq) + I-(aq) --> K+(aq) + I-(aq) + H2O(l)

Net ionic equation:

H+(aq) + OH-(aq) --> H2O(l)

8 0

4 years ago

Use the following balanced reaction to solve 1-3:

tino4ka555 [31]

Answer:

1.96g H2

Explanation:

P4 = 123.9g/mol

H2 = 2.02g/mol

$\frac{20g P_{4} }{1}$ * $\frac{1 mol P_{4} }{123.9g}$ * $\frac{6 mol H_{2} }{1 mol P_{4} }$ * $\frac{2.02g H_{2} }{1 mol H_{2} }$ = 1.96g H2

6 0

3 years ago

A student determines the molar mass of acetone

love history [14]

The Formula of Acetone is $C_3H_6O$
To find the Mass Molar of a compound, you add the Atomic weights of it's atoms.
If you check the Periodic table:
Atomic Weight of Carbone C: 12.0107
Atomic Weight of Hydrogen: 1.00794
Atomic Weight of Oxygen: 15.9994

So, you got:
Total Atomic Weight of Carbone in Acetone: 12.0107 * 3 = 36.0321
Total Atomic Weight of Hydrogen in Acetone: 1.00794 * 6 = 6.04764
Total Atomic Weight of Oxygen in Acetone = 15.9994 * 1 = 15.9994

Now, you add this numbers
36.0321 + 6.04764 + 15.9994 = 58.07914

So, the Molar Mass of Acetone is 58.09714 g/mol

Hope this Helps :D

7 0

3 years ago