Answer:
B
Explanation:
Exergonic reactions are also called spontaneous reactions, because they can occur without the addition of energy. ... In this case, the products, or final state, have more free energy than the reactants, or initial state. Endergonic reactions are non-spontaneous, meaning that energy must be added before they can proceed.
Answer:
to show how substances in a chemical reaction interact
to shorten the explanation of a chemical reaction
to help keep track of atoms in a chemical reaction
Explanation:
Answer:
C) Mass
E) Distance from ground
Explanation:
The factors that influence the gravitational potential energy are mass and distance from the ground or height.
Gravitational potential energy is potential energy of a body in relation to that of another under the influence of gravity.
Mathematically;
Gravitational potential energy = mgh
where m is the mass
g is the acceleration due to gravity
h is the height
Answer:
- <u><em>4-methylcyclohexene (the last choice)</em></u>
Explanation:
The compound is an alkene (cycloalkene), with a methyl group as substituent (it substitutes one hydrogen in the carbon chain).
The IUPAC's rules state that the location of the carbon-carbon double bond in the structure is indicated by specifying the number of the carbon atom at which the C=C bond starts, assigning the lowest possible number to the double bond: this in this case is number 1.
<em>Cyclohexene</em> is the main chain and mehtyl is a substituent, as already said.
So, the name 1-methyl-3-cychlohexene is not valid (position 1 is for the carbon-carbon double bond).
The name methycyclohexene is not valid because it is not telling the position of methylgroup.
The name 5-methylcyclohexene is not valid because the position five should be named 2 in the cyclohexene (you must use the smallest number), so the name should be 2-methyl... instead of 5 methyl...
1-methyl-4cyclohexene is not valid because, as said, the position 1 is reserved for the carbon-carbon double bond.
Only 4-methylcyclohexene is a valid name.
The file attached shows the structure. I have added numbers on the carbons of the main chain to show you how that the methyl group is in the positiion number 4.
D = m / V
D = 2790 g / 205 mL
D = 13.60 g/mL