The rate of a reaction is measured by how fast a reactant is used up or how fast a product is formed.

True or False?

Like charges are attracted to one another. True False

Which part of an investigation is only found in an experimental investigation? A. a hypothesis B. a control group C. a procedure D. a conclusion

Which formula represents lead (ii) chromate? and why is it this?

What type of force is magnetic force? Contact force Normal force Force of friction Non-contact force

Why are the dipole-dipole interactions not important in the vapor phase?

Which of the following is a type of cell organelle? A. membrane B. cytoplasm C. DNA D. nucleaus

Electromagnetic forces are the predominant force in holding what subatomic particles together?

When in a compound, the oxidation number of a nonmetal: A). is always fixed and can never be changed B). can only be deduced once all the other oxidation numbers in the equation are totaled C).

Which of the following actions will not increase the rate at which a solid dissolves in a liquid? A. increasing the surface area of a solid B. stirring the solid and the liquid C. increasing the amount of the solid D.

Does the amount of heat absorbed as 1 kg of saturated liquid water boils at 100°C have to be equal to the amount of heat released as 1 kg of saturated water vapor condenses at 100°C?