christine k

The daily RNI of calcium for adolescent females is 700 to 1100 mg. A supplement tablet contains 950 mg of calcium citrate. Each grams of calcium citrate contains 5.26 x 10^-3 mol calcium. How many tablets would a 16 year old female have to take to meet he...

empty cruble-34.69g crucible+ magnesium- 34.86g crucible+magnesium oxide - 34.97g How can i find the number of moles of magnesium present at the start of the reaction How can i also find the total number of magnesium oxide molecules present at the end of...

2x+5 x+4 ------ - ----- x^2+3x+2 x^2+3x+2 i keep getting x+9 ------------ (x+1)(x+2)