Answer the following question given this paragraph: Temperature is a measure of the average kinetic energy of the particles in matter. In everyday usage, temperature indicates a measure of how hot or cold an object is. Temperature is an important parameter in chemistry. When a substance changes from solid to liquid, it is because there was an increase in the temperature of the material. Chemical reactions usually proceed faster if the temperature is increased. Many unstable materials (such as enzymes) will be viable longer at lower temperatures. Q: What is the measure of kinetic energy of the particles in matter? Choices: - energy - precipitation - friction - temperature A:
temperature
(Question)
Answer the following question given this paragraph: All combustion reactions are exothermic reactions. During a combustion reaction, a substance burns as it combines with oxygen. When substances burn, they usually give off energy as heat and light. Look at the big bonfire in the Figure below . The combustion of wood is an exothermic reaction that releases a lot of energy as heat and light. You can see the light energy the fire is giving off. If you were standing near the fire, you would also feel its heat. Q: All combustion reactions are what type of reactions? Choices: - flammable - geothermal - reversible - exothermic A:
(Answer)
exothermic
Ques: Answer the following question given this paragraph: Glaciers are incredibly powerful agents of erosion. Q: Glaciers are incredibly powerful agents of what? Choices: - climate change - insulation - extinction - erosion A:
Ans: erosion
(Q).
Answer the following question given this paragraph: Elasticity is the ability of a material to return to its original shape after being stretched or compressed. Elastic force is the counter force that resists the stretching or compressing of an elastic material. Q: What is the ability of a material to return to its original shape after being stretched or compressed? Choices: - acidity - viscosity - solubility - elasticity A:
(A).
elasticity
Ques:Answer the following question given this paragraph: Friction is the force that opposes motion between any surfaces that are in contact. There are four types of friction: static, sliding, rolling, and fluid friction. Q: Name the missing type of friction: static, rolling, fluid _____? Choices: - falling - turning - dragging - sliding A:

Ans:sliding
Answer the following question given this paragraph: stoichiometric coefficient : The letters a, b, c, and d where A and B are reactants, and C and D are products. The stoichiometric coefficients indicate the relative amounts of reactants and products. Q: The stoichiometric coefficients indicate the relative amounts of what? Choices: - trajectories and products - exigencies and products - reactions and products - reactants and products A:
reactants and products