Answer:
4Na + 1O2 > 2Na2O
SF6 > 1S + 3F2
2FE2O3 > 4FE + 3O2
Step-by-step explanation:
1. Identify the Products and Reactants(always do O2 last)
2. determine how many atoms of each element are present on each side of the equation
3. Add Coefficients and never change the subscripts. If there's a coefficient in front of any compound, it is distributed to both elements.
4. find the total number of atoms on both sides of the equation and make sure they equal with each other
Answer:
8
Step-by-step explanation:
That is the quetion that sal khan explaind in the vid BOI
Answer:
8< (2) ( 7- (2)) = 8<10 which is true
so A. is the answer
Step-by-step explanation:
The correct answer is 142
number of sheep= 184
ewe= 23% of total sheep
= 23/100 × 184
= 42 approximately
if number of ewe = 42
Then number of ram= ( total number of sheep - number of ewe)
= 184- 42
= 142 approximately
Therefore, number of of ram is 142
learn more at:
