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morpeh [17]
3 years ago
9

The student inferred that a chemical reaction occurred what evidence supports this inference

Chemistry
1 answer:
Llana [10]3 years ago
4 0
Honestly dude it’s either j or h
You might be interested in
Help help help.
Whitepunk [10]
I think B
Hope this helps!
4 0
3 years ago
What happens when chemical bonds break and new bonds form
zheka24 [161]

Answer:

Chemical reactions make and break the chemical bonds between molecules, resulting in new materials as the products of the chemical reaction.

Explanation:

Breaking chemical bonds absorbs energy, while making new bonds releases energy, with the overall chemical reaction being endothermic or exothermic.

5 0
3 years ago
When an ionic compound dissolves in water:
Airida [17]

Answer:

d. each of the above (A, B, and C) occurs.

Explanation:

When an ionic species dissolves in water , the ionic compound dissociates into cation and anion , and the cation interacts with the negative end of the water molecules , and the anion interacts with the positive end of the water molecule .

During the process of dissolution , the interaction between , solvent - solute overcome the interaction between solute - solute molecules .

Hence , From the question , all the statement given are correct .

8 0
3 years ago
1. Calculate the molar mass of the substances involved in the reaction
Nookie1986 [14]

The molar mass of a substance/chemical is the mass of the sample substance divided by the  amount of substance in that sample.

Explanation:

  • In order to calculate the atomic mass of a substance we first obtain the atomic weight of the substance from the periodic table.
  • Then we count the number of atoms of the substance and multiply it with the individual atomic mass.

Molar mass of Citric Acid ( H3C6H5O7) is 192.1235 g/mol

It is calculated as :

Molar mass of C₆H₈O₇ = 6(atomic mass of C) + 8(atomic mass of H) + 7(atomic mass of O) = 6(12.0 g/mol) + 8(1.0 g/mol) + 7(16.0 g/mol) = 192.0 g/mol.

Molar mass of baking soda (NaHCO₃) is 84.0 g/mol

Molar mass of NaHCO₃ = (atomic mass of Na) + (atomic mass of H) + (atomic mass of C) + 3(atomic mass of O) = (23.0 g/mol) + (1.0 g/mol) + (12.0 g/mol) + 3(16.0 g/mol) = 84.0 g/mol.

3 0
3 years ago
WILL GIVE BRAINLIEST IF YOU EXPLAIN (this is 7th grade Science / Chemistry btw):
alekssr [168]

Answer:

2 chlorine atoms.

Explanation:

H₂ + Cl₂ → 2HCl

The Law of Conservation of Mass states that matter can neither be created nor destroyed in a chemical reaction.

If 2 molecules of Hydrogen and 2 molecules of Chlorine is present in the reactants, the same no. of atoms should also be present in the product.

∴ the no. of chlorine atoms in the product is 2.

8 0
3 years ago
Read 2 more answers
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