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

a. zinc chloride and hydrogen.

b. zinc and hydrochloric acid.

c. zinc and hydrogen carbonate.

d. zinc chlorate and water

Do you think thar solids can undergo convection? Explain.

What are the similarities of physical and chemical change?

1. Replace? with a whole number to make the statements true. a. 20 : 4? means? * 4 = 20 b. 2,725 : 5? means? * 5 = 2,725 c.? : 5 = 0 2. ABC Preschool spent $1,475 on diapers this year. If the diapers cost $25 per box, how many boxes did they use? 3.

What is always true of a weak acid

How many moles of boron are in 37.8 grams of boron?

Suppose you find a rock that contains some potassium-40 (half-life of 1.3 billion years). you measure the amount and determine that there are 5 grams of potassium-40 in the rock.

What are some positive and negative effects of the production of maple syrup on society and the environment?

Describe and give an example of parasitism.

Why is a dilute solution of oleic acid used instead of pure oleic acid?

The vapor pressure of benzene (C6H6) is 73.0 mm Hg at 25 °C. What is the vapor pressure of a solution consisting of 179 g of benzene and 0.217 mol of a nonvolatile nonelectrolyte?