Chemistry, 24.09.2019 06:10, eddiewoods8505
The earth is approxiamately 1.5 x108km from the sun. how many minutes does
it take ligh to travel from the sun to earth? hint: the speed of light is 3.0 x 108
m/s.
Answers: 3
Chemistry, 22.06.2019 18:30, robjaykay
The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of
Answers: 2
Chemistry, 23.06.2019 06:00, womankrush538
Which of the following is a solution a- brewed coffee b-tomato juice c- ranch salad dressing d- muddy water
Answers: 1
Chemistry, 23.06.2019 06:40, hackman1216
The combustion of methane, ch4, releases 890.4kj/mol. that is, when one mole of methane is burned,890.4 kj are given off to the surroundings. this meansthat the products have 890.4 kj less than the reactants. thus, ah for the reaction = - 890.4 kj. a negative symbolforah indicates an exothermic reaction. ch (g) + 20 (g)> co2 (g) + 2 h0 (1); ah = - 890.4 kga) how much energy is given off when 2.00 mol of ch, are burned? b) how much energy is released when 22.4g of ch. areburned?
Answers: 1
The earth is approxiamately 1.5 x108km from the sun. how many minutes does
it take ligh to tra...
it take ligh to tra...
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