Answer:
Carbon dioxide is a compound
Explanation:
It is formed by chemical combination of carbon and oxygen atoms
Answer:
The answer to your question is: V2 = 1.94 l
Explanation:
Data
V1 = 2.42 l
T1 = 25°C
P1 = 1 atm
V2 = ?
T2 = 25 -11 = 14°C
P2 = 1(0.7) = 0.7 atm
Formula
P1V1/T1 = P2V2/T2
Clear V2 from the equation
V2 = P1V1T2/ P2T1
V2 = (1)((2.42)(14) / (0.7)(25)
V2 = 33.88 / 17.5
V2 = 1.94 l
Answer: Na2CO3 → Na2O + CO2 is already balanced
Explanation:
See answer.
When you're dealing with scientific notation (especially when you use an order of operations such as adding on it), it's important to know that you cannot add 10^2 to 3 (for example).
(3 x 10^5) + (5 x 10^8)
When adding exponents, you're only adding the exponents together and not changing the original number (10).
5 + 8 = 13
We now have a sum of 3x5 x10^13
Multiply 3 by 5 to get your new expression.
3 x 5 = 15
15 x 10^13 is what we're left with.
Your answer is A.)
I hope this helps!