An element (which is written as a X) makes the compositions X2O and XO. Which compositions it is gonna make with chlorine? a) XCl and XCl2
b) XCl2 and XCl3
c) XCl and XCl3

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall? whats the percent

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat