A property that is observed through a chemical change is called a:

chemical property

physical property

intensive property

extensive property

What is the definition of reactivity with vinegar

How to seperate sand and water

What volume will 6.745g of neon gas occupy at standard temp and pressure?

How many protons and electrons are present in the mg2 + ion? 1. 14 protons, 14 electrons 2. 12 protons, 10 electrons 3. 12 protons, 12 electrons 4. 14 protons, 12 electrons 5. 10 protons, 12 electrons 6. 10 protons, 14 electrons 7.

Consider the reaction of zn metal with hydrochloric acid: zn (s) + 2hcl (aq) → zncl2 (aq) + h2 (g) if 7.50 g of zn is reacted with 0.225 moles of hcl in a 2.00 l container what pressure does the generated h2 exert against the container walls at 25.

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).