Which of the following statements about ice melting is true?
a. water molecules move into a f...
Chemistry, 14.10.2019 08:10 Muffinaubrey
Which of the following statements about ice melting is true?
a. water molecules move into a fixed position.
b. energy flows from the surroundings to the ice.
c. water molecules lose energy.
d. the temperature of the ice increases as it melts
Answers: 1
Chemistry, 23.06.2019 00:00
The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?
Answers: 2
Chemistry, 23.06.2019 11:20
Sandy is building a small toy car. he wants to use a balloon to power the toy car. he fills a balloon with air and then attaches a straw to the balloon. he tapes the balloon-straw combination to the car and then releases the end of the balloon. the toy moves forward as the air from the balloon comes out the back of the straw. what can sandy do to make the toy car move faster? a) use less air in the balloon. b) blow up the balloon more. c) use a longer straw. d) use larger tires.
Answers: 2
Mathematics, 14.07.2020 16:01
Mathematics, 14.07.2020 16:01
Mathematics, 14.07.2020 16:01