Chemistry, 15.05.2021 01:00 ShernelQS17
Antoine Lavoisier is credited with the discovery of the law of conservation of mass. The law states that in a chemical reaction, matter is not created or destroyed but preserved. Which equation correctly models this law?
H2 + Cl2 ---> 2HCl
H2 + Cl2 ---> HCl
H + Cl ---> 2HCl
2H2 + Cl2 ---> 2HCl2
Answers: 3
Chemistry, 21.06.2019 22:30
1. combine iron and copper (ii) sulfate solution. (hint: iron will form the iron (iii) ion) fe + cuso4 โ 2. combine lead (ii) nitrate and potassium iodide solutions. pb(no3)2+ kl โ 3. combine magnesium metal and hydrochloric acid solution. mg + hcl โ 4. electrolysis (splitting) of water. h2o โ 5. burning magnesium. mg + o2 โ
Answers: 3
Chemistry, 22.06.2019 00:30
Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants
Answers: 1
Chemistry, 22.06.2019 02:40
How many liters of hydrogen gas will be produced at stp from the reaction of 7.179ร10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2
Answers: 1
Chemistry, 22.06.2019 06:30
Summarize possible ways in which phases of matter could combine to form a solution.
Answers: 2
Antoine Lavoisier is credited with the discovery of the law of conservation of mass. The law states...
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