Answer:
silicon
Explanation:
Silicon. Silicon is often found in electronic devices, as well as the sand.
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Answer:
Hello
12 grams
The mass of one mole of carbon-12 atoms is 12 grams.
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Explanation:
Noble Gas. Metals have 1 or 2 Valence Electrons. Halogens have 7 Valence Electrons. Semi-Metals can have different amounts.
Answer:
Magnesium reacts with dilute hydrochloric acid in a conical flask which is connected to an inverted measuring cylinder in a trough of water. The volume of hydrogen gas produced is measured over a few minutes, and the results are used to plot a graph........