Answer:
B: 2800 hydrogen atoms
C: 6760 hydrogen atoms
D: y=amount of oxygen atoms*2
Step-by-step explanation:
B: We know the formula for water is H2O. SO that means that there is 2 hydrogen atoms and 1 oxygen atom. So there is 2 times the amount of hydrogen atoms so we can do 1400*2=2800, So there is 2800 hydrogen atoms in the water.
C: Same thing as B. 3380*2=6760
D: y=amount of oxygen atoms*2. Because there is one oxygen atom and two hydrogen atoms so 1*2=2.
Answer:
It would be A
Step-by-step explanation:
The other answers do not make sense.
First of all: Area= length x width.
Two of the options were larger than 49.7, so we could cross those out
Then, we look at A and B.
46.2 x 3.5 = 161.7, which is WAY larger than 49.7.
Since we have no option left to test, we can test A:
14.2 x 3.5= 49.7
Now we cam be sure that the answer is 14.2, or, A.
HOPE THIS HELPED:)

Multiply this by 100 to get your answer!
3.4 × 100 = 34%
So, therefore, 34% is your final answer.
Which percent is equivalent to 3 2/5? 34% is!
↑ ↑ ↑ Hope this helps! :D
Answer: 12r + 3
Step-by-step explanation:
6r+3(2r+1)
Apply BODMAS, do bracket first
6r + (6r + 3)
Do addition next
= 12r + 3