Chemistry, 13.03.2021 06:30 therealpr1metime45
1. How many molecules are in 5.00 moles of H 2 O?
2. How many moles are in 5.30 X 10 23 molecules of H 2 O?
3. How many molecules are in 0.750 moles of H 2 ?
4. How many atoms are in 2.00 moles of He?
5. How many atoms are in 1.50 moles of Hg?
6. How many molecules (molecules) are in 2.50 moles of O 2 ?
7. How many atoms are in 8.250 moles of Rb?
8. How many moles are in 6.91 X 10 22 atoms of He?
9. How many moles are in 4.23 X 10 50 molecules of H 2 ?
10. How many moles are in 3.25 X 10 25 atoms of Au?
11. How many moles are in 2.14 X 10 35 molecules of O 2 ?
12. How many moles are in 1.11 X 10 20 molecules of CH 4 ?
Answers: 2
Chemistry, 21.06.2019 15:00
Which of the following elements is a representative element? a. chromium (cr) b. aluminum (al) c. mercury (hg) d. silver (ag)
Answers: 3
Chemistry, 22.06.2019 02:00
Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.
Answers: 2
Chemistry, 22.06.2019 19:20
For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)
Answers: 1
1. How many molecules are in 5.00 moles of H 2 O?
2. How many moles are in 5.30 X 10 23 molecules o...
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