given:
Chemistry, 29.07.2019 20:10 celestemaria0727
Type the correct answer in the box. express the answer to three significant figures.
given:
ch4 + 2o2 → co2 + 2h2o, δh = -890 kj/mol
how much energy is released when 59.7 grams of methane (ch4) reacts with oxygen?
the combustion of 59.7 grams of methane releases
kilojoules of energy.
Answers: 2
Chemistry, 22.06.2019 02:30
The is a particle with one unit of positive charge a. proton b. positron c. electron d. nucleus awnser quick it is a important science test!
Answers: 2
Chemistry, 22.06.2019 05:30
What is the mass of each element in a 324.8 sample of co2
Answers: 1
Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
Answers: 1
Chemistry, 22.06.2019 17:30
A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159
Answers: 2
Type the correct answer in the box. express the answer to three significant figures.
given:
given:
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