A 155.0 9 piece of copper at 182 °C Is dropped into 2500 g of water at 23.9 °C. (The specific heat of copper is 0.385 1/9°C.) Calculate the final temperature of the

mixture. (Assume no heat loss to the surroundings.)

Heat energy is always released during what type of process?

Balance the equation Li + CO2+H2O-LiHCO3+H2

Infrared radiation can be detected by A. an ammeter. B. a transmitter. C. a microwave tower. D. night-vision goggles.

How is the number 3.91 x 10 - 4 expressed in regular numbers? A. 0.3910000 B. 0.0000391 C. 0.0391 D. 0.000391

If a polyatomic ion is made of halogen and oxygen atoms, what form would one take if it had the fewest atoms? is it ... A) This form would get a per - prefix and an - ate suffix. B) This form would get only an - ate suffix.

C12 has 6 protons. how many neutrons does c13 have? a. 6 b. 7 c. 13 d. 19

Imagine you are at a local water park on a hot summer day and your feet begin to get hot from the cement. Looking ahead, you notice that there are two paths you can take to your favorite waterslide.

Determine the pH of a 0.350 M solution of HA. The pkb of A - is 12.830.

Which statement is true about oxygen-17 and oxygen-18?

A man is making chicken noodle soup and has found it to be too salty. What method could he use to make the soup less salty? a. Add equal measured amounts of water to the soup. b. Bring the soup to a boil so that some of the broth evaporates. c.