Chemistry, 01.08.2019 04:30 kayonapretty14p45995
Which reactions performed in the experiment involved chemical changes? crushing calcium carbonate mixing calcium carbonate and hcl boiling water heating copper sulfate pentahydrate separating iron filing and sulfur mixing potassium iodide and lead nitrate combining magnesium and hcl burning the candle?
Answers: 2
Chemistry, 22.06.2019 12:00
1. if you have a gas at 127 degrees c, what is it's absolute temperature (kelvin)? a. 200kb. 300kc. 400kd. 500k2. if you had a gas whose absolute temperature measured 45 k, what is that temperature in celsius? a. -228 cb. -300 cc. 125 cd. 112 c
Answers: 2
Chemistry, 22.06.2019 13:30
Apush or pull that moves or changes and object when to objects touch
Answers: 2
Chemistry, 23.06.2019 01:00
Iron (fe) reacts with copper sulfate (cuso4) to form iron (ii) sulfate. in this reaction, cu2+ gains electrons to form cu. which statement is true about this reaction? fe(s) + cuso4(aq) → feso4(aq) + cu(s)
Answers: 3
Chemistry, 23.06.2019 10:00
How many grams of cupric sulfate pentahydrate are needed to prepare 50.00 ml of 0.0800m cuso4× 5h2o?
Answers: 3
Which reactions performed in the experiment involved chemical changes? crushing calcium carbonate m...
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