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When sugar is heated for a short timea thick colorless liquid substance is formedwhat kind of change takes place?
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What change might be observed when a substance is heated?
How much it is heated. What has the heat done to the object ETC
What change will show in a graph in temp of an substance a s it is heated will show what?
a heating curve
How does the density of most substances change when they are heated?
generally, the density of a substance decreaces when heated, with the exception of ice, which is less dense than water.
What is a change of state-science?
Changes in state can occur when a substance is heated, cooled or even if an external pressure change occurs.
What are two ways to change the state of a substance?
Substances can change state, usually when they are heated or cooled. For example, liquid water turns into steam when it is heated enough, and it turns into ice when it is cooled enough. The closeness, arrangement and motion of the particles in a substance change when it changes state.
When sugar is heated for a short time a thick colorless liquid substance is formed What kind of change takes place?
A chemical change takes place.
When sugar is heated for a short time a thick colorless liquid substance is formed What kind of change takes place explain?
a chemical change take the place because the substance went from a solid to a liquide and can no longer be turned back into a sugar cube.
How does the volume and density of a substance change when it is heated?
The volume of a substance increases when heated, causing a decrease in density.
Does the volume of an object change if heated?
The volume of a substance increases when heated
What change might be observed when a substance is heated?
How much it is heated. What has the heat done to the object ETC
When a pure substance is heated or cooled but does not change state the energy as heat is the what?
chemical change
Is hot water an chemical or physical change?
That is a physical change because it has not had an explosive or bubbly substance.
How can volume change if a substance undergoes a chemical change?
If a substance undergoes a chemical change, its properties change. For example, water, when heated turns into a gas which has a higher volume.
When a substance is heated its temperature increases. What other change might be observed?
Ordinarily when a substance is heated it expands. In some cases it melts. In some cases it vaporizes/evaporates.
What change will show in a graph in temp of an substance a s it is heated will show what?
a heating curve
What does thermochromatic mean?
it refers to a substance undergoing a reversible change of colour when heated or cooled
What will a graph show if the change in temperature of a substance is heated?
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