Experimental investigations<span> involve a process in which a "fair test" is designed and variables are actively manipulated, controlled, and measured in an effort to gather evidence to support or refute a </span>causal relationship<span>. Experimental investigations have a control group which does not receive any treatment. A classic example is "What is the effect of light color on plant growth?" In this experiment, the variable color of light is changed by the student. The student may compare red light to green light to natural light.
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In an atom there are the same number of protons as electrons to start with. The answer would be 65 aswell.
Answer:
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Explanation:
here's the answer to your question
Answer:
Copper carbonate undergoes thermal decomposition. The green copper carbonate decomposes when heated and forms copper oxide and carbon dioxide
