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Pachacha [2.7K]
3 years ago
9

Aside from Earth, which of the following inner planets once had liquid water on its surface?

Chemistry
2 answers:
Lilit [14]3 years ago
7 0

mars and murcury also

Nastasia [14]3 years ago
4 0

Aside from Earth, which inner planet once had liquid water on its surface? (Mars)

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I need to make sure of my answer
choli [55]

Answer:

A) W and X

Explanation:

They are both non metals

3 0
3 years ago
Write balanced molecular equation for the reaction between nitric acid and calcium hydroxide. Express your answer as a chemical
eimsori [14]

<u>Answer:</u> The balanced chemical equation for the reaction of nitric acid and calcium hydroxide is written below.

<u>Explanation:</u>

A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on product side.

The balanced chemical equation for the reaction of nitric acid and calcium hydroxide follows:

2HNO_3(aq.)+Ca(OH)_2(aq.)\rightarrow Ca(NO_3)_2(aq.)+2H_2O(l)

By Stoichiometry of the reaction:

2 moles of nitric acid reacts with 1 mole of calcium hydroxide to produce 1 mole of calcium nitrate and 2 moles of water molecule.

Hence, the balanced chemical equation for the reaction of nitric acid and calcium hydroxide is written below.

6 0
4 years ago
What is the answer to this chemistry question?
olga_2 [115]

Answer:

The answer to your question is remplacement double

Explanation:

Data

Lead (II) nitrate = Pb(NO₃)₂

Potassium iodide = KI

Process

1.- Write the balanced chemical reaction

             Pb(NO₃)₂  +  2KI  ⇒   PbI₂  +  2KNO₃

2.- Conclusion

This is a remplacement double reaction because there are two reactants that interchange cations and the products are a combination of the reactants.

5 0
4 years ago
Which pairing accurately matches a biomolecules polymer with its monomer subunit
BartSMP [9]
The pairing that accurately matches a bio molecule polymer with its monomer subunit would be B. Protein and amino acids.
6 0
3 years ago
Read 2 more answers
Convert 121 Cal to kilowatt-hours
gulaghasi [49]

Answer:

here

Explanation:

0.000141 to kilowatt-hours. hope this helped

6 0
3 years ago
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