Ammonia produces an alkaline solution when dissolved in water because ammonia

a. is an acid.

b. does not contain oh - ions.

c. is almost insoluble in water.

d. produces oh - ions when it dissolves.

Balance the following unbalanced redox reaction (assume acidic solution if necessary) : Cr2O72 - + Cl - → Cl2 + Cr3 + Indicate the coefficient that will be used for Cl2 (g) in this reaction

At which of the following temperatures is the average kinetic energy of the molecules of a substance the least? 23.2 °C 35.2 °C 15.2 °C 31.4 °C

In which temperature zone does the sun rays strike at a Lower angle making this zones prime it's colder than other temperature zones?

The pharmacy receives a prescription for 50 grams of 5% salicylic acid ointment. the pharmacy has a 30% salicylic acid ointment and petrolatum available.

As a star increases in brightness, which value becomes smaller? A. density B. magnitude C. temperature D. luminosity

If the moles and temperature of a gas are held constant, the pressure of a gas doubles when: Volume is halved Volume is quadrupled Volume is doubled Volume is also held constant

The life function of transport in an organism directly involves those activities used to 1. absorb and distribute materials 2. obtain and hydrolyze materials 3. release energy from food 4. produce cellular waste product

What is the orbital diagram for phosphorus

The atoms of gaseous helium are

The subatomic particle that has the least mass is the ...