Combustion analysis of an unknown compound containing only carbon and hydrogen produced 0.2845 g of co2 and 0.1451 g of h2o. what is the empirical formula of the compound?

How is heating of sugar and heating of ammonium chloride different from each other? Explain your answer.

Atom x has an atomic number of 19 and has a mass number of 39. the number of protons in atom x is equal to

Which of the following describes the proper way to carry a microscope? A. One hand on the arm B. One hand on the base C. Two hands on the arm or the base D. One hand on the arm and one hand on the base

David has bleach and water and mixes them together. A. Did David increase or decrease the pH of the water? B. What type of ion was added to the water?

How does the Humidity of air affect the type of snow that falls?

Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed leave it blank. If no reaction occurs leave all boxes blank and click on "Submit". Use H3O + for hydronium ion.

What can I expect on the asvab

Consider the reaction N2 (g) + O2 (g) ⇌ 2NO (g) If the equilibrium partial pressures of N2, O2, and NO are 0.22, 0.19, and 0.030 atm, respectively, at 2200°C, what is KP?

What is demetri mendeleyev given credit for developing

Acetone used for rinsing glassware Group of answer choices 1. Pour it down the sink where you are rinsing the glassware 2. Collect it and dispose of it in the organic or acetone waste container 3.