Which of the following would be used to buffer vinigear

a salt

b flour

c baking soda

How does earth's movment affect our view of the stars

A glucose solution that is prepared for a patient should have a concentration of 180 g/L. A nurse has 18 g of glucose. How many liters of water should she add to the glucose to obtain the required solution?

Which equation is a decomposition reaction? Li2CO3 - - Li2O + CO2 Zn + HCl - - ZnCl2 + H2 Na2O + CO2 - - Na2CO3 C6H12O6 + O2 - - CO2 + H2O

A gas occupies 4.65 liters at 0.86 atm. What is the pressure if the volume becomes 15.27 L?

KNO3 (s) - -->ž K + (aq) + NO3 - (aq) This reaction was carried out in a Styrofoam insulated calorimeter and the following data were recorded:Mass of solid KNO3 dissolved10.1 gMass of aqueous solution (c = 4.18 J/gºC) 100. gT initial30.0ºCT final21.

According to Table F, which compound is soluble in water? (1) barium phosphate (3) silver iodide (2) calcium sulfate (4) sodium perchlorate

The temperature of a liquid is 75k what is the temperature im celsius

Balance this equation- Na3PO4 + KOH - > NaOH + K3PO4

Carbon dioxide, or CO2, is a (n) A.) atom. B.) mixture. C.) element. D.) compound.

If the atomic number of an element is 6 and its mass number is 20, how many neutrons are in the atom's nucleus?