Predict the products​

1. No reaction.

2. ZnCl₂ + H₂

3. CaCl₂ + H₂

Explanation:

1. Cu + HCl —> ___

From the reactivity series of metals, H is higher that Cu in the series and so, Cu can not displace H from solution.

Therefore, no reaction will occur.

2. Zn + HCl —> ___

Zn is higher than H in the activity series so, it will displace H from acid solution to produce hydrogen gas, H₂.

The balanced equation is given below:

Zn + 2HCl —> ZnCl₂ + H₂

3. Ca + HCl —> ___

Ca is higher than H in the activity series so, it will displace H from acid solution to produce hydrogen gas, H₂.

The balanced equation is given below:

Ca + 2HCl —> CaCl₂ + H₂

the mass of the cathode increases because ions from the solution get reduced to atoms and become part of the cathode.

explanation:

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stan bts

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates