Which expression is equivalent to 6m + (m - 2)(m + 7) + 3?
m2 +11m-11
m² +6m-11
7m...
Chemistry, 16.04.2020 20:14 nevecronin
Which expression is equivalent to 6m + (m - 2)(m + 7) + 3?
m2 +11m-11
m² +6m-11
7m +47m-11
7m2+47m-14
Answers: 2
Chemistry, 22.06.2019 17:50
You exhale co2 which is produced during cellular respiration. co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid. the more physical activity you engage in, the more co2 your body is producing. you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw. can you see a change in the color of the indicator?
Answers: 2
Chemistry, 23.06.2019 06:40
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
Chemistry, 23.06.2019 10:00
Which number should be placed before f2 on the reactants side equation to make equation balanced? xe + > xef4
Answers: 1
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