Water С O
Method
Follow these steps and then answer the questions.
1
Half-fill a beaker with crushed ice and measure the temperature.
2 Set up the apparatus as shown in the diagram.
3 Gently heat the beaker using a Bunsen burner.
While stirring continuously, measure the temperature every 10 seconds.
Continue until the water has boiled for a few minutes.
5 Present your results in a neatly drawn table.
6 Plot the heating curve of water, placing temperature (in °C) on the vertical
axis and time (in minutes) on the horizontal axis.
7 Determine the cooling curve of water by starting your measurements at the
boiling point of water.
000
In ice,
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glide
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Questions
a) At what temperature does heating not result in a temperature rise?​

(A

Explanation:

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

explanation:

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.