For many purposes we can treat propane (C3H8) as an ideal gas at temperatures above its boiling point of - 42. °C. Suppose the temperature of a sample of propane gas is raised from -21.0°C to 16.0 °C, and at the same time the pressure is changed. If the initial pressure was 0.38 kPa and the volume increased by 40.0%, what is the final pressure?
Answers: 2
Chemistry, 22.06.2019 12:00, sophiaa23
Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
Answers: 2
Chemistry, 23.06.2019 05:30, hongkongbrat6840
Astudent made the lewis dot diagram of a compound as shown. mg is written with two dots shown on its top. an o is written on each side of mg. each o has six dots around it. an arrow is shown from one dot on mg toward the vacant space around the o on the right. another arrow is shown from the other dot on mg toward the vacant space around the o on the left. the title of the art is students lewis dot model. what is the error in the lewis dot diagram? an o atom should transfer all its six electrons to mg because the formula is mgo. both electrons of mg should be transferred to one o atom because the formula is mgo. the electrons should be transferred from each o atom to mg because mg has fewer electrons. the number of dots around mg should be four because it has to transfer two electrons to each o.
Answers: 2
Chemistry, 23.06.2019 06:30, destineedeal1
What type of chemical reaction occurs between silver nitrate (agno3) and copper (cu)? the equation i was given is 2agno3 + cu —> 2ag+ cu(no3)2.
Answers: 1
For many purposes we can treat propane (C3H8) as an ideal gas at temperatures above its boiling poin...
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