Ice melts to form water. Sugar cubes dissolve in hot coffee. Which statement is true about the two changes? Both are chemical changes because there is a change in the composition of ice and sugar. Both are physical changes because there is a change in the physical states of ice and sugar. A is a physical change due to a change of state, but B is a chemical change because new molecules are formed. or A is a chemical change due to a change of state, but B is a physical change because new molecules are formed
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
wo changes are described below.
- Ice melts to form water.
- Sugar cubes dissolve in hot coffee.
Which statement is true about the two changes?
Both are chemical changes because there is a change in the composition of ice and sugar.
Both are physical changes because there is a change in the physical states of ice and sugar.
A is a physical change due to a change of state, but B is a chemical change because new molecules are formed.
or A is a chemical change due to a change of state, but B is a physical change because new molecules are formed.
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