The amount of attraction between two masses depends on:

Explain how the temperature of a substance is related to the kinetic energy of its molecules.

Which of the following weather conditions might result in a hurricane? A. a tornado that starts over a sandy area B. a thunderstorm that moves slowly C. strong winds that start over the ocean D. light rain over a small area of land

Which element has properties of both metals and nonmetals?

In the shapes and fluid forces lab, you dropped different shapes in the fluid. what was the dependent variable that you observed and recorded

How can one increase the rate of a chemical reaction? a. Decrease the concentration of the reactants. b. Add a catalyst. c. Increase the activation energy needed. d. Increase the entropy of the reactants. e. Cool the reactants.

A 1.3 g sample of gold (specific heat capacity = 0.130 J/g °C) is heated using 86.9 J of energy. If the original temperature of the gold is 25.0°C, what is its final temperature?

In what applications might coal replace petroleum based fuel

How many molecules are in 7.5 mol of h2o

An electron moved from a lower energy level to a higher energy level. What most likely happened during the transition? A random amount of light was released. A fixed amount of energy was absorbed. A fixed amount of energy was released.

Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are formed when 57.1 grams of sodium are added to water?