Potassium nitrate, KNO3, decomposes to form potassium nitrite, KNO2, and oxygen gas, O2. Write the balanced equation for this decomposition reaction.

Which term identifies the most probable location of an electron in the wave - mechanical model of an atom?

what happens to the density of an object when the volume of that object increases and the mass remains the same?

If you accidentally scratch the outermost part of your eye, which part would you damage? a. cornea b. the lens c. the retina d. the pupil

The shiny appearance of a metal is most closely related to the metal's A. brittle crystalline structure. B. covalent bonds. C. positive ions. D. highly mobile valence electrons (electron sea / delocalized electrons).

Which of the following statement (s) are true about the atoms of any element? The number of protons in an atom of an element is unique to each element.

Which is an example of a genetic disorder caused by errors that occur during meiosis? A. malaria B. color blindness C. Down syndrome D. sickle-cell anemia

How many grams of precipitate will be formed when 20.5 mL of 0.800 M CO (NO3) 2 reacts with 27.0 mL of 0.800 M NaOH in the following chemical reaction? CO (NO3) 2 (aq) + 2 NaOH (aq) → CO (OH) 2 (s) + 2 NaNO3 (aq)

How do bacteria get their food? Select all that apply. manufacture it themselves obtain it from decaying organic matter obtain it parasitically from living organisms obtain it from the soil and atmosphere

A test done under standard conditions is referred to as what in chemistry? A. STP B. Control C. Rate Constant D. Kinetics E. None of the above

Ethylene glycol (antifreeze) has a density of 1.11 g/cm3. what is the volume in liters of 3.46 kg of ethylene glycol?