Answer: Option (a) is the correct answer.
Explanation:
The graph shows that as and when time increases the need for energy consumption also increases.
This might be due to increase in population with time that has lead to increase in consumption of energy.
Thus, we can conclude that out of the given options, a graph of energy consumption in the United States versus time slopes upward. This indicates that energy consumption has increased.
Answer:
0.9726g/ml
0.9726g/cm³
Explanation:
Density is found by dividing mass by volume.
Density = mass/volume
mass = 7.1g
volume= the new level of water raised - the initial level of water
volume = 32.4 - 25.1
volume = 7.3 ml
Volume is the amount of space occupied by an object.meaning the amount of volume displaced by the object is its volume.
density = 7.1 /7.3
density = 0.9726g/ml
or 0.9726 g/cm³
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Answer:
<h3>A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit. All metric prefixes used today are decadic. Each prefix has a unique symbol that is prepended to any unit symbol.</h3>
Answer: The results agree with the law of conservation of mass
Explanation:
The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction. On the reactant side, the total mass of reactants is 14.3g and the total product masses is also 14.3g. That implies that no mass was !most in the reaction. The sum of masses on the left hand side corresponds with sum of masses on the right hand side of the reaction equation.
B. Because there are 3 molecules in right and 2 molecules in the left, so entropy rises.
