In the chemical equation Zn + 2HCl ZnCl2 + H2, the reactants are

A. zinc and hydrochloric acid.

B. zinc and hydrogen carbonate.

C. zinc chloride and hydrogen.

D. zinc chlorate and water.

5. On what organ does alcohol have the most noticeable effect?

How many grams of potassium iodide will produce 500 grams of silver iodide, when there is an excess of silver nitrate? Why? A. 235 B. 707g C. 166g D. 301g

500 ml of four different liquids are heated to 50c according to the specific heat data which liquid will cool to 35c in the shortest amount of time

What is the earth's primary source of light energy? Proxima Centauri sun moon waves

A box has a mass of 100 grams and a volume of 20 mL. Will the box sink or float in water? How do you know?

Glucose is not made from which of the following

Rank the temperatures from the highest to the lowest. 133F 351K 25C 273K 146C 58F 95F

Calculate the density of sulfuric acid if 35.4 mL of the acid weighs 65.14 g.

Where the single machos?

A reaction will be spontaneous only at low temperatures if both ΔH and ΔS are negative. For a reaction in which ΔH = - 320.1 kJ/mol and ΔS = - 86.00 J/K · mol. Determine the temperature (in °C) below which the reaction is spontaneous.