What is the smallest chemical element?

How many atoms of each element are in the chemical formula Ca (OH) 2? a) 1 calcium, 1 oxygen, and 1 hydrogen b) 1 calcium, 2 oxygen, and 2 hydrogen c) 2 calcium, 1 oxygen, and 2 hydrogen d) 2 calcium, 2 oxygen, and 2 hydrogen

The volume of a gas increases when its temperature increases because

Which of the following substances is most likely to be a liquid at room temperature? a. formaldehyde, H₂COH₂CO b. fluoromethane, CH₃FCH₃F c. hydrogen cyanide, HCN d. hydrogen peroxide, H₂O₂H₂O₂ e. hydrogen sulfide, H₂S

Net ionic equation for Li + (aq) + OH - (aq) + H + (aq) + Cl - (aq) - - - >?

A stock solution containing Mn2+ ions is prepared by dissolving 1.584 g of pure manganese metal in nitric acid and diluting to a final volume of 1.000 L. The following solutions are prepared by dilution. For solution A, 50.

Consider the reaction N2 (g) + 3 H2 (g) 2 NH3 (g), which is exothermic as written. What would be the effect on the equilibrium position of adding N2 (g) ?

According to Table I, which equation represents a change resulting in the greatest quantity of energy released? 1. 2C (s) + 2H2 (g) - > C2H4 (g) 2. 2C (s) + 3H2 (g) - > C2H6 (g) 3. N2 (g) + 3H2 (g) - >2NH3 (g) 4. N2 (g) + O2 (g) - > 2NO (g)

Calculate the number of liters in 3.25 g of ammonia

Adding drops of food coloring to a beaker of water more organized system?

Some chemical hazards are physical and some are related to the potential health effects of exposure. Click only one box for each response Toxicity Carcinogenic Flames Inhalation hazard Flying objects