How can the rate of a reaction be increased?

Having less surface area.

Adding a Catalyst.

Lowering the temperature.

Decreasing the amount of reactants.

9. How many atoms are in 1 moles of H20?

A scientist wants to make advances in the way skin cancer patients are treated. What is something she should do first? O A. Study the side effects of her new treatment. O B. Look at the success rate of the current treatments. O C.

What of the following is a physical model of the sun?

Cereal is an example of what type of matter? Solution Compound Heterogeneous mixture Element

MgBr2 metal or non metal

A chemist has evolved a certain substance in water the chemist knows that more the substance could be dissolved into the water before it stops dissolving therefore the current solution is

Be sure to answer all parts. The combustion of a 40.0-g gaseous mixture of H2 and CH4 releases 3766 kJ of heat. Calculate the amount of each gas in grams.

Global warming can be slowed or stopped

Since 1915, chemical fertilizer has been mass produced for farming. Which of the following is the main water pollution problem caused by chemical fertilizer?

Relative dating will tell you exactly how old a rock layer is. True False