PLEASE HELP ME IN GRADE 11 CHEMISTRY. PLEASE SHOW ALL YOUR STEPS, IF POSSIBLE ON PAPER PLEASE. 20.8 g of calcium phosphate, 13.3 g of silicon dioxide and 3.90 g of carbon react according to the following equation. Determine the mass of calcium silicate that is produced. [10]

2CA3(PO4)2 (S) + 6SiO2 (S) + 10C(S) = P4 (S) + 6CaSiO3 (S) + 10CO (g)

Select the correct answer. which phrase correctly describes temperature? o a. average rotational kinetic energy of the particles in an object o b. average energy of the particles in an object c. average translational kinetic energy of the particles in an object od. all energy possessed by the particles in an object

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.

An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1: