Chemistry, 24.07.2021 01:00 izzyisnotfizzy
Cho 22,8g hỗn hợp A gồm Fe, FeCO3 vào dd HSO, đặc nóng dư thu được 10.08 lít hỗn hợp khi bay ra (đo ở đktc), biết rằng SO2 là sản phẩm khử duy nhất. Tính % khối lượng của từng chất trong hỗn hợp A ban đầu
Answers: 3
Chemistry, 22.06.2019 10:00
Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's
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Chemistry, 22.06.2019 12:20
The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397
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Chemistry, 23.06.2019 03:00
In which of the following phases of matter do molecules have the highest amount of energy? a. liquid b. gel c. solid d. gas
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Chemistry, 23.06.2019 04:20
The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.
Answers: 1
Cho 22,8g hỗn hợp A gồm Fe, FeCO3 vào dd HSO, đặc nóng dư thu được 10.08 lít hỗn hợp khi bay ra (đo...
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