Convert 345 NH3 grams to moles

Are aliens real. (Obviously they are I'm just bored)

How any electrons are shared in the covalent bond of two nitrogen atoms to form a nitrogen molecule? A. 2 B. 4 C. 6 D. 8

Which is an example of an internal stimulus? A: A sudden change of air temperate. B: an artificial light that attracts insects? C:an increase in the amount of water available to a plant? D: a decrease in oxygen levels in the blood during exercise?

is the only element in group 1 on the periodic table that forms covalent bonds. A) hydrogen B) lithium C) potassium D) sodium

What is the molar mass of H3PO4? (Molar mass of H = 1.0079 g/mol; P = 30.974 g/mol; O = 15.999 g/mol)

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The table compares the characteristics of a substance in three different states of matter. Comparison of Characteristics Characteristic State X State Y State Z Average Kinetic Energy of the Molecules Low Greatest Least Particle Attraction/Forces

In an exothermic reaction the bonding energy of the product is?

How many molecules are contained in two 540.-mg tablets of penicillin (C16H18N2O4S, molar mass 334.4 g/mol) ? Report your answer with the appropriate number of significant figures.

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