Science Questions

What is the chemical name of common salt?

What is the precipitate formed when Silver Nitrate reacts with Sodium Chloride?

Which gas turns lime water milky?

What is the PH of a neutral solution?

In the reaction CuO + H2 -> Cu + H2O, which substance is being reduced?

Which is an example of a chemical change?

What type of reaction releases light and heat?

Which radical has a valency of -1?

What is the formula for Sulphuric Acid?

Which gas has a pungent smell and turns moist red litmus blue?

What kind of reaction is 2Na + Cl2 -> 2NaCl?

What does the symbol (aq) stand for in a chemical equation?

Which factor does NOT increase the rate of reaction between a solid and a liquid?

What is the molecular weight of Water (H2O)? (H=1, O=16)

In the reaction Zn + CuSO4 -> ZnSO4 + Cu, which element is displaced?

What is the positive catalyst used in the manufacture of oxygen from potassium chlorate?

Identify the type of reaction: AgNO3(aq) + NaCl(aq) -> AgCl(s) + NaNO3(aq).

Which of the following is a reducing agent in the reaction: H2S + Cl2 -> 2HCl + S?

Balance the following: aFe + bCl2 -> cFeCl3. What are the coefficients?

What happens to the rate of reaction if the concentration of reactants is decreased?