What is the percentage by mass of nacl in a saturated solution of sodium chloride at 50c

How many joules of heat must be transferred to a 480-g aluminum pizza pan to raise its temperature from 22C to 234C? The specific heat of aluminum in this temperature range is 0.96 J/g•C. Show your work Q = mc (Tf-Ti)

What is an inorganic chemical? O A. A chemical that makes up living things O B. A chemical that is not from living things O C. A chemical that does not take part in reactions O D. A chemical that contains carbon atoms

Use the balanced equation from number four above to determine the limiting reactant if we had a mixture of 2.0 moles of Fe and 6.0 moles of O2.

In the third period of the periodic table, sodium is followed by magnesium, aluminum, silicon, and phosphorus. Which of these elements has the smallest atomic size? A. sodium B. magnesium C. aluminum D. silicon E. phosphorus

What is the colour of Ag2SO3

A solution of a compound with a known extinction coefficient of 23,100 M-1cm-1 has an absorbance of 0.735 in a 1.30cm path length, what is the concentration of the solution

Balance the following equation with the smallest whole number coefficients. Choose the answer that is the sum of the coefficients in the balanced equation. Do not forget coefficients of "one". RbOH + H3PO4 → Rb3PO4 + H2O

What is the temperature of 100 liter container having 1 mole of an ideal gas at a pressure of 20 kilopascals

5.2*10^26 molecules of ch4 in volume

Which of the following statements about igneous rocks is correct A. intrusive igneous rocks are formed when magma is called above the ground. B. Extrusive igneous rocks are formed when magma is cooled above the ground C.