36 divided by 12 is 3. you need three times as much of the recipe to make 36 brownies. The answer is B
1.661x10 negative 24 squared
Answer :
(a) 0.0152
(b) 0.0000000778
(c) 0.000001
(d) 1600.1
Explanation :
Scientific notation : It is the representation of expressing the numbers that are too big or too small and are represented in the decimal form with one digit before the decimal point times 10 raise to the power.
For example :
5000 is written as ![5.0\times 10^3](https://tex.z-dn.net/?f=5.0%5Ctimes%2010%5E3)
889.9 is written as ![8.899\times 10^{-2}](https://tex.z-dn.net/?f=8.899%5Ctimes%2010%5E%7B-2%7D)
In this examples, 5000 and 889.9 are written in the standard notation and
and
are written in the scientific notation.
(a) ![1.52\times 10^{-2}](https://tex.z-dn.net/?f=1.52%5Ctimes%2010%5E%7B-2%7D)
The standard notation is, 0.0152
(b) ![7.78\times 10^{-8}](https://tex.z-dn.net/?f=7.78%5Ctimes%2010%5E%7B-8%7D)
The standard notation is, 0.0000000778
(c) ![1\times 10^{-6}](https://tex.z-dn.net/?f=1%5Ctimes%2010%5E%7B-6%7D)
The standard notation is, 0.000001
(d) ![1.6001\times 10^{3}](https://tex.z-dn.net/?f=1.6001%5Ctimes%2010%5E%7B3%7D)
The standard notation is, 1600.1
D because it was abandoned
2 C₃H₇OH (l) + 9 O₂ (g) → 6 CO₂ (g) + 8 H₂O (g)
Explanation:
To balance the chemical equation the number of atoms of each element entering the reaction have to be equal to the number of atoms of each element leaving the reaction, in order to conserve the mass.
Bellow we have the balanced chemical equation of the complete combustion of C₃H₇OH:
C₃H₇OH (l) + (9/2) O₂ (g) → 3 CO₂ (g) + 4 H₂O (g)
to have integer coefficients we multiply the reaction with 2:
2 C₃H₇OH (l) + 9 O₂ (g) → 6 CO₂ (g) + 8 H₂O (g)
where:
(l) - liquid
(g) - gaseous
Learn more about:
combustion reaction
brainly.com/question/9425444
balancing chemical equations
brainly.com/question/13941483
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