When hydrogen and oxygen combine to form water, water would be

a. a product.

c. both a product and a reactant.

b. a reactant.

d. neither a product nor a reactant.

The reaction between iron (II) oxide and carbon monoxide produces iron and carbon dioxide. How many moles of iron can be obtained when 4.754.75 mol FeOFeO reacts with an excess of COCO

What are the less reactive elements

What has a greater effect on an object's kinetic energy---doubling its mass or doubling its speed? Explain

How many joules of heat must be transferred to a 480-g aluminum pizza pan to raise its temperature from 22C to 234C? The specific heat of aluminum in this temperature range is 0.96 J/g•C. Show your work Q = mc (Tf-Ti)

2. Pentane gas (C5H12) combusts with oxygen gas (O2) to form water (H2O) and carbon dioxide (CO2). Write a balanced chemical equation for this reaction and explain the scientific principle (statement) that requires the balancing of an equation to

A sample of bismuth weighing 0.687 g was converted to bismuth chloride by reacting it first with HNO3, and then with HCI, followed by careful evaporation to dryness. The mass of the bismuth chloride obtained was 1.032 g.

When 1 g of sodium chloride (NaCl) is placed in 100 g of water, a solution results. Once the solution is prepared, water is now considered what part of the solution?

1. How is pressure affected as depth increases? 2. As the sun heats the surface of the oceans, two layers of water result. What separates the layers? 3. How is temperature affected when? (a) the depth increases (b) the latitude increases 4.

Are nails in a jar with water a chemical change

What is the molarity of a solution composed of 4.73 g of potassium iodide (KI) dissolved in enough water to make 0.169 L of solution? Answer in units of M.