Answer:
True
Explanation:
When performing an elementary row operation to an augmented matrix, this is the same as algebraically manipulating the corresponding linear system to obtain a linear system which has the same solutions
Answer:
D
Explanation:
--2 K (s) + __ H2SO3 (aq) --
-->
_K2SO3 (aq) + __H2
To balance this equation, all you need do is put a 2 in front of the K. The rest don't require any balancing coefficients.
Left
2 K
2 H
1 SO3
Right
K2
1 SO3
1 H2
It's balanced.
Answer : The mass of carbon required is, 309.4 grams.
Explanation : Given,
Mass of oxygen = 1100 g
Molar mass of oxygen = 16 g/mol
Molar mass of carbon = 12 g/mol
First we have to calculate the moles of oxygen.
Now we have to calculate the moles of carbon.
Moles of carbon =
Moles of carbon =
Now we have to calculate the mass of carbon.
Thus, the mass of carbon required is, 309.4 grams.
It has a decrease in oxidation number
The process of reduction is when the oxidation number of a chemical specie is lowered, or when the specie gains electrons. A chemical specie undergoing reduction will act as an oxidizing agent, because it will oxidize the other reactant by itself getting reduced.
He was an american engineer, and he populized molecular nanotechnology