How many L of 0.75 M Ca (OH) 2 (aq) are needed in order to have 5.5 mol of Ca (OH) 2?

A decomposition reaction has a half-life that does not depend on the initial concentration of the reactant. what is the order of the reaction?

Humans add greatly to the carbon cycle by driving cars planting trees conserving energy using solar power

Zinc and sulfur react to form zinc sulfide according to the following equation 8Zn+S8--->8ZnS A) if 2.00 mol of zinc are heated with 1.

Household vinegar is a solution of acetic acid (HCH3COO) in water. Most vinegars contain 5% acetic acid by volume. What volume of acetic acid is present in a 0.250 L bottle of vinegar?

A compound formed from Ca+2 and Cl - represents what?

Sodium chloride was dissolved in water to produce a 1.5M solution. Explain what this concentration tells us about the NaCl solution. How might a chemist use this ratio?

A gas is contained in a 5.0-liter container at a pressure of 100 kPa. What size container would be required to contain the gas at a pressure of 50 kPa, assuming the temperature remains constant?

Select the correct answer. What is the chemical name of the covalent compound p4S3 A. tetraphosphate trisulfide B. triphosphate tetrasulfide tetraphosphorus trisulfide D. quadriphosphide trisulfur E. quadriphosphorus trisulfide Reset

A student doing this experiment obtained the data shown in the table above. The value of the constant, k, for this data is

A fuel scientist burnt a piece of coal and a piece of wood to compare the amount of heat given off by each.