Chemistry, 18.06.2021 07:00 johnLavender8798
1. a heart shaped mylar is filled with helium gas. the ballon holds 0.605 moles of gas when the pressure is 1.248 atm and the temperature is 16.1 degrees C. what is the volume of the balloon?
2. a 90.8 g sample of xenon is in a 15.7 L container. what is the pressure of this gas in mmHg 279° C?
3. when 4.85 L of methane (CH4) gas is completely burned with oxygen (O2), it produces water vapor and carbon dioxide. at a temperature of 22° C and a pressure of 135 kPa, what mass of water vapor will result?
CH4 + 2O2 > 2H2O + CO2
Answers: 1
Chemistry, 21.06.2019 20:30
12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]
Answers: 1
Chemistry, 22.06.2019 06:30
Use examples from the article to explain one positive and one negative effect that chemistry has had on society.
Answers: 2
Chemistry, 22.06.2019 06:30
If 1.8 l of water is added to 2.5l of a 7.0 molarity koh solution, what is the molarity of the new solution
Answers: 1
1. a heart shaped mylar is filled with helium gas. the ballon holds 0.605 moles of gas when the pres...
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