Which atom would tend to gain 1 valence electrons from another atom in order to become stable

A - Ar

B - B

C-He

D-Cl

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In a lab, a student dissolves 6.9 g of sodium chloride (NaCl) in 125 g of water (H2O). What is the molality concentration of the solution?

Water can be formed according to the equation: 2h2 (g) + o2 (g) → 2h2o (g) if 8.0 l of hydrogen is reacted at stp, exactly how many liters of oxygen at stp would be needed to allow complete reaction?

Ordinary table sugar is primarily sucrose, which has the chemical formula c12h22o11. calculate the mass percentages of carbon, hydrogen, and oxygen in sucrose.

How many grams of C5H12 must be burned to heat 1.39 kg of water from 21.2 °C to 97.0 °C? Assume that all the heat released during combustion is used to heat the water.

The formation reaction of magnesium oxide is as follows: Mg (s) + 0.5O2 (g) → MgO (s) This reaction can be constructed from the following reactions.

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The density of aluminum is 2.70g/mL. What is the volume in mL of 74.5 grams of aluminum?

How many atoms are in 5 moles of sulfur