What is the formula for lead (II) nitride?

What is the form of water in the earth's surface

How many moles are in 2.87g of cobalt

Give the name of the reaction that achieves the theoretical limits with respect to free energy in thermodynamics. a. reversible reactionb. forward reactionc. irreversible reactiond. equilibrium reaction

Citric acid (h3c6h5o7) is a product of the fermentation of sucrose (c12h22o11) in air. determine the mass of citric acid produced when 2.50 mol c12h22o11 is used. the balanced equation is: c12h22o11 + 3 o2 → 2 h3c6h5o7 + 3 h2o

When Phillip analyzed an unknown substance X, he found that it contained only one kind of atom. Phillip was unable to convert the substance to a simpler one. What is substance X? A. a compound B. an element C. a heterogeneous mixture D.

How do scientist know that atoms and molecules combine in well-ordered arrays?

Explain why potassium and argon react together

Which indicator will be the same color in hydrochloric acid as it is in pure water? 1. methyl orange 2. phenolphthalein 3. bromcresol green

Based on your knowledge of energy resources conservation, which of the following statements is true? a) Manufacturers can increase a light bulb's energy efficiency by using technology that decreases the amount of electromagnetic energy the bulb

Ammonia (nh3 (g), hf = - 46.19 kj/mol) reacts with hydrogen chloride (hcl (g), hf = - 92.30 kj/mol) to form ammonium chloride (nh4cl (s), hf = - 314.4 kj/mol) according to this equation: