Compound that occur widely in glass,
cement and ceramics are:
IF
A. silicated
B. sulphates
C. carbonates
D. phosphates

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?

What is the approximate mass of 25 cm3 of silver, if the density is 10.5 g/cm3? a. 0.42 g b. 2.4 g c. 42 g d. 260 g