When the products of a reaction have less energy than the reactants:

The reaction is exothermic.

The reaction is endothermic.

The reactants lost internal energy.

The change in enthalpy is positive.

What is experimental bias?

Reacting molecules or ions in a solution at room temperature are in constant motion and collide. some collisions lead to a formation of product and some do not. what determines whether a reaction will take place?

What is the molecular formula of a molecule if its molar mass is 290 g/mol and its empirical formula is C6H8O?

Which element has a small mass that is to small to be considered part of the mass of the atom?

What is the name of the compound CO?

Why is it important to conserve both nonrenewable and renewable resources?

What procedure represents the safest technique to use for diluting a concentrated acid?

Water a combination of the elements hydrogen and oxygen, is an example of an

Provide three different types of examples of how minerals form on earth

Which element has the lowest electronegativity? Calcium (Ca) Gallium (Ga) Selenium (Se) Bromine (Br)