Chemistry, 30.06.2019 23:00 williamnason123
Astudent uses a ph meter to measure the acidity of a water sample from a lake. for what purpose is the student most likely testing the water? a. to learn what organisms could survive in the lake b. to determine the age of the lake c. to understand how people use the lake d. to find out the depth of the lake
Answers: 1
Chemistry, 21.06.2019 20:50
Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread
Answers: 2
Chemistry, 22.06.2019 14:30
For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2
Answers: 3
Chemistry, 22.06.2019 15:50
How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate
Answers: 1
Astudent uses a ph meter to measure the acidity of a water sample from a lake. for what purpose is t...
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