4. Why is this a double replacement reaction?

HCl+Fes - FeCl+H2S

The American space station launched in 1973 disintegrated as it fell to earth in 1979. a. True b. False

While on vacation, a student picks up surface rocks from around the world to add to her rock collection. The composition of her rock samples will be primarily

What is a permanent magnet

A baseball is located at the surface of the earth. Which statements about it are correct? (There may be more than one correct choice.

What is the current in a 120V circuit if the resistance 10?

3. What is the kinetic energy of a 1300 kg car moving at 26.3 m/s?

Kendall has empty graduated cylinder with markings and an identical graduated cylinder partway filled with water. She also has a balance and a marble. Which statement best describes what Kendall can do? A.

2. With regard to the pH scale, a solution with a pH A. higher than 7 is considered an acid. B. lower than 7 is considered basic. C. of 6 is considered neutral. D. close to 14 is considered a strong base.

If a car rolls gently off a vertical cliff, how long does it take to reach 90km/hr.

In the game of volleyball, what skill relates to Newton's second law