What are elements made of?

What term is used to describe substances that are made of elements that are chemically bonded together and can be decomposed by chemical change back into separate elements?

Elements and compounds are both classified as substances because they are homogeneous. This means that they have the same

What type of solution is created when a solute such as NaCl is dissolved into water?

If a mixture has a varying composition throughout the sample, it is classified as a

Soil is an example of a(n)

Which of the following is an example of a physical change?

Which of the following is an example of a chemical change?

If 75 grams of substance A are reacted with 25 grams of substance B to form substance C, what will the mass of substance C be?

The energy of motion is

What direction does heat always flow?

What occurs during exothermic reactions?

What occurs during endothermic reactions?

If a scientist measures the temperature of water in a container surrounding a chemical reaction before and after the reaction, she is probably performing

In a calorimetry problem, what does C represent?

What term is used to describe the change in potential energy that accompanies a chemical reaction?

A positive change in potential energy indicates that energy was absorbed from the surroundings, thus lowering the temperature of the surroundings. This describes an

A decrease in potential energy (- delta H) indicates that energy was lost from the system and released into the surroundings, thus increasing the temperature of the surroundings. This describes an

Teachers: Create FREE classroom games with your questions Click for more info!
©2007-2024 Review Game Zone | About | Privacy | Contact | Terms | Site Map