When HBr combines with water, it produces H3O + and Br - ions. This shows that HBr is a base. true false

A property that is observed through a chemical change is called a: chemical property physical property intensive property extensive property

What is the acronym for ribonucleic acid?

In a chemical reaction, a certain compound changes intoanother compound at a rate proportional to the unchanged amount.

What are five main characteristics of a mineral

In an experiment designed to determine the concentration of Cu 2 ions in an unknown solution, you need to prepare 100 mL of 0.10 M CuSO4 as your stock solution. How many grams of CuSO4 (s) should you use

Which is the balance equation for S8+O2=SO2

Sound waves travel fastest through? A.) Air B.) Steel C.) Water D.) Vacuum

Which of the following combinations will result in a reaction that is never spontaneous? 1) positive enthalpy change and positive entropy change 2) positive enthalpy change and negative entropy change 3) negative enthalpy change and positive entropy

Which of the formed elements is present in the greatest concentration?

A compound has a percent composition of 24.74% potassium (molar mass = 39.10 g/mol), 34.76% manganese (molar mass = 54.94 g/mol), and 40.50% oxygen (molar mass = 16.00 g/mol).