When the acid is stronger than the (very) weak carbonic acid (pKa = 6.3), then carbon dioxide and water is formed.
You get carbon dioxide.
Calcium Carbonate
Carbon dioxide- it turns the lime water milky as calcium carbonate is precipitated.
"Vitamin C" is a somewhat ambiguous term, chemically speaking; it can refer either to ascorbic acid or one of its salts such as sodium ascorbate. If you mix sodium hydrogen carbonate with ascorbic acid, you get sodium ascorbate, water, and carbon dioxide. If you mix sodium hydrogen carbonate with sodium ascorbate, they just mix; there's no chemical reaction.
turns into calcium sulphate and carbon dioxide and salt
You get carbon dioxide.
Calcium Carbonate
bismuth iodide
Carbon Dioxide, CO2.
copper sulphate and carbon dioxide
Carbon dioxide- it turns the lime water milky as calcium carbonate is precipitated.
The products are calcium and magnesium chlorides, water and carbon dioxide.
"Vitamin C" is a somewhat ambiguous term, chemically speaking; it can refer either to ascorbic acid or one of its salts such as sodium ascorbate. If you mix sodium hydrogen carbonate with ascorbic acid, you get sodium ascorbate, water, and carbon dioxide. If you mix sodium hydrogen carbonate with sodium ascorbate, they just mix; there's no chemical reaction.
Most probably copper chloride and carbon dioxide, if the concentration of hydrochloric acid is high enough.
turns into calcium sulphate and carbon dioxide and salt
Na2CO3 + 2HCl -> 2NaCl + CO2 + H2O
The reaction is:Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2