Chemistry, 20.02.2021 06:40, agilitygirl1
I'm counting on you guys, this my last chance, give a hand and I give you a good brainliest and 40 points... Promise.
2. Indicate the number of molecules in:
a. 0.5 moles NH3
b. 1 mole of KOH
3. Indicate how many moles of compounds are in:
a. 1 g of HCl
b. 1g H2
c. 1 g CH4
4. One container contains 150 g of ethyl alcohol, C2H6O.
a. Calculate the number of moles of C2H6O
b. The number of C2H6O molecules
5. What is the centesimal composition by mass of Cu (NO3) 2?
6. A compound has the following centesimal composition by mass: Na: 43.4%, C: 11.3%, O: 45.3%. Find your formula
Data: Atomic masses: Ag = 108; N = 14; Al = 27; P = 31; O = 16; H = 1; K = 39; Cl = 35.5; C = 12;
Answers: 2
Chemistry, 21.06.2019 20:30, jbarbie3
12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]
Answers: 1
I'm counting on you guys, this my last chance, give a hand and I give you a good brainliest and 40 p...
Mathematics, 09.06.2021 16:50
Mathematics, 09.06.2021 16:50
Mathematics, 09.06.2021 16:50
Mathematics, 09.06.2021 16:50
Mathematics, 09.06.2021 16:50
Chemistry, 09.06.2021 16:50
Mathematics, 09.06.2021 16:50