Which of the following choices represents a balanced chemical equation? A. Ca3 (PO4) 2 + 6SiO2 → P4O10 + 3CaSiO3 B. 2Ca3 (PO4) 2 + 6SiO2 → P4O10 + 6CaSiO3 C. 2Ca3 (PO4) 2 + 3SiO2 → 2P4O10 + 2CaSiO3 D. 3Ca3 (PO4) 2 + 2SiO2 → P4O10 + 4CaSiO3

What volume of 0.4567 m h2so4 is required to neutralize 30.00 ml of 0.3210 m naoh?

What are the electron configurations of an electrically neutral atom of sodium, electrically neutral atom of neon, and electrically neutral atom of oxygen?

in your own words. explain why it was possible for mendeleev to organize the elements into the periodic table

What energy sources boil the water in geothermal energy

Which of the following for an object should be known to calculate its density? a) the heat present in it b) the amount of matter in it c) the force of gravity acting on it d) space between object and another object

Which would exhibit characteristics of both a metal and a nonmetal? select one: a. si b. ge c. sb d. po e. all of the above exhibit characteristics of both a metal and a nonmetal?

In the synthesis reaction, the white powder produced is magnesium oxide (mgo, mm = 40.3 g/mol). how many moles of magnesium oxide were formed (number of moles = mass (g) / molar mass (g/mol)) ? choose the closest answer. a. 0.21 moles b. 0.

Which of the following is the most likeley example of an favorable mutation A. A mutation that makes a rabbit able run faster B. A mutation that changes the rabbit's fur to bright orange C. A mutation that changes the color of the rabbit's eyes D.

Which of these mole ratios is possible for this reaction? FeCl3 + 3NaOH → Fe (OH) 3 + 3NaCl 1:1 1:3 3:1 2:3

The chemical equation for reduction of phosphorite Ca3 (PO4) 2