2x-y
2(3)-(-5)
6+5
11
The answer is 11.
The answer of this is b 0.8 + 9 equal 100 because if that’s not the answer then it’s 10000- 0.7
X=-3 y = -5 y=Mx+b -5 = m(-3)+b > -5 = -3m +b
I believe the first one is p^2-3p+7p-21 and the second one is9a^2-3ab-3ab+b
Answer:
1.39 × 10^22 molecules of CO₂
Step-by-step explanation:
We are given;
We are required to calculate the number of molecules of CO₂
1 mole of a compound contains 6.022 × 10^23 molecules
- Thus, we can answer the question;
2.3 × 10^-2 moles will contain;
= 2.3 × 10^-2 moles × (6.022 × 10^23 molecules/mol)
= 1.386 × 10^22 molecules
= 1.39 × 10^22 molecules
Therefore, there are 1.39 × 10^22 molecules of CO₂