Answer:
Chemical energy
Explanation:
Chemical energy is energy stored in the bonds of atoms and molecules. Batteries, biomass, petroleum, natural gas, and coal are examples of chemical energy. Chemical energy is converted to thermal energy when people burn wood in a fireplace or burn gasoline in a car's engine.
A.
because the nucleus contains protons and neutrons BUT neutrons are neutral and protons are positive, so the answer is A
<span>The expected boiling point of a substance increases with an increasing molar mass of the substance. So I would expect the lighter compounds to boil at lower temperature. Also more polar molecules tend to boil at higher temperature.
Pentane is the lightest of all three compounds, so it should boil the soonest.
Heptane is a lot heavier than Pentane, but slightly lighter than Heptanol. So it should boil next.
Heptanol is the heaviest of all of the molecules and is also quite polar compared to heptane. So it should have the highest of all the boiling points.</span>
<em>12 x cos 50</em><em> </em><em>=</em><em> </em><em>7</em><em>.</em><em>7</em><em>1</em><em>3</em><em>4</em><em>5</em><em>1</em><em>3</em><em>1</em><em>6</em><em>.</em><em>.</em><em>.</em>
Percentage of real juice = 27% by volume.
For a 2 L juice bottle,
Fruit juice = 27/100*2 = 0.54 L
