Answer:
sorry if this is a bit late but i know what your talking about and your answer would be 8
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Answer:
B. Two chlorine atoms
Explanation:
This electronic configuration shows that the given atom is magnesium.
Electronic configuration of magnesium:
Mg¹² = 1s² 2s² 2p⁶ 3s²
There are two valance electrons of magnesium that's why it would react with two atoms of chlorine. Chlorine is present in seventeen group. It has seven valance electrons. It required just one electron to get complete octet. While magnesium needed to lose two electrons to get complete octet. That's why two chlorine atoms bonded with one magnesium atom. Thus both would get complete octet.
Mg + Cl₂ → MgCl₂
Answer:
Explanation:
Hygrometer, instrument used in meteorological science to measure the humidity, or amount of water vapour in the air. Several major types of hygrometers are used to measure humidity.
Answer:
C. 63.3%
Explanation:
Theoretical yield = 47.2g
Actual yield = 29.9g
Percentage yield = ?
The percentage yield of a compound after chemical synthesis is the ratio of the actual yield to the theoretical yield multiplied by 100.
Percentage yield = (actual yield / theoretical yield) × 100
Percentage yield = (29.9 / 47.2) × 100
Percentage yield = 0.6334 × 100
Percentage yield = 63.34%
The percentage yield of Fe is 63.34%
The Law of Conservation of Mass states that energy can neither be created nor destroyed in a chemical reaction.
