Chemistry, 13.04.2021 17:20 playaajosh
the starting materials completely lose their properties to form new substances chemical change 2. a change from one state of matter to another physical change 3. a change in shape, size, or physical characteristics but remaining same substance Law of Constant Composition 4. a pure compound consists of exactly the same elements in the exact same ratios by mass molecule 5. The smallest unit of a compound phase change
Answers: 2
Chemistry, 22.06.2019 06:00
24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm
Answers: 2
Chemistry, 22.06.2019 14:00
8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
Answers: 3
Chemistry, 23.06.2019 06:40
4786 joules of heat are transferred to a 89.0 gramsample of an unknown material, with an initialtemperature of 23.0°c. what is the specific heat of thematerialif the final temperature is 89.5 °c?
Answers: 1
the starting materials completely lose their properties to form new substances chemical change 2. a...
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