3 natural chemicals a part of our life

When salt is introduced to water, the temperature at which freezing occurs is?

Number of representative particles in 0.250 mol silver

Which of the following elements has electrons in the 3d sublevel?

Given a gas inside a 2.93 L container at a temperature of 20 Celsius. The temp increases to 40 Celsius. what happens to the volume of gas and whose gas law is this?

Which atom has five electrons in its outer level and 10 electrons in the inner energy levels

Can someone who expert in chemistry be my personal tutor? I'm so desperate

Semi-conductors have properties of both metals and non metals. which are two examples of metalloids

How do you determine the percent yield of a chemical reaction?

What is a property of a combustion reaction? A. Oxygen gas, O2, is a reactant. B. The products are simpler than the reactants. C. The reactants are simpler than the products. D. An uncombined element is on the reactant and product side.

For an endothermic reaction at equilibrium, the addition of a catalyst Group of answer choices causes no shift causes a shift to the right causes a shift to the left makes it an exothermic process