How many atoms of nitrogen on the reactant side

How and why theories change and how this contributes to continues and ongoing nature of science

Which of the following chemical formulas are incorrect? NaO2 RbCl K2S Al2Cl3 MgP2 Are all of the cations listed first? Are all of the compounds neutral? Enter the formula for all compounds correctly in the same order as in the previous question.

86.14 mL of an acid solution was needed to neutralize 30.24 mL of a base solution of unknown concentrations. A second trial is run but this time 30.24 mL base solution is diluted to a total volume of 50.00 mL before starting the titration.

A catalyst speeds up a chemical reaction by A. decreasing the reaction enthalpy. B. providing an alternate reaction pathway. C. shifting the equilibrium. D. increasing the activation energy.

What is the difference between a chemical process and a physical process in chemistry?

What is alkyl hydrogen sulphate

What is the physical state of each of these materials at room temperature? a. gold b. gasoline c. oxygen d. neon e. olive oil f. sulfur g. mercury

What is one unexpected problem associated with cell phone use? A. It decreases the efficacy of your peripheral vision. B. It distracts your hearing from events on the roadway. C. It causes you to misjudge distances.

Construction crews sometimes use this reaction for welding underwater structures: Fe2O3 + 2Al → Al2O3 + 2Fe How many moles of iron (Fe) would be produced if 2.

A chunk of lead at 91.6 C was added to 200.0g of water at 15.5 C. The specific heat of lead is 0.129J/g C. When the temperature stabilized, the temperature of the mixture was 17.9 C.