Answer: Acidity and basicity, proton concentration, the pH scale. You may have noticed that acidic things tend to taste sour, or that some basic. Since the scale is based on pH values, it is logarithmic, meaning that a change of 1 pH unit .
Explanation: PLEASE MARK ME AS BRAINLIEST
(3) empirical, molecular, structural is the correct answer.
Group (1) shows the little factors to form substances and compounds. Group (2) shows the types of elements. Group (4) shows the types of chemical reaction.
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Answer:
Ba has the largest atom size
Answer:
Burning of the candle is both physical and chemical change. Burning of the candle melts the wax and hence physical state of wax has changed from solid to liquid.
Again the wax combines with the atmospheric oxygen and changes to carbon dioxide, heat and light.
Thus both the changes are accompanied by the burning of the candle.
Explanation:
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When paper burns, it releases two distinct forms of energy
Thermal Energy
Light Energy
Thermal Energy is heat energy, heat energy is formed from the flame on the paper, in this scenario.
Light energy comes from the reaction of the paper, the flame.
In conclusion, both energy's form from the reaction of the paper, and the combustion in the air. Thus, heat and light.