When iron reacts with oxygen, it forms iron oxide, or rust. 4 Fe + 3 O2 2 Fe2O3 If 112 g of iron (Fe) combines with 24 g of oxygen (O2), how much iron oxide is formed? A. 24 g Fe2O3 B. 136 g Fe2O3 C. 112 g Fe2O3 D. 88 g Fe2O3

Describe the composition of the core of the Earth. Select one: The inner core is composed of liquid iron surrounded by a solid nickel-iron alloy out core. The inner core is composed of solid iron surrounded by a molten nickel-iron alloy outer core.

The human eyes composed of 3 layers

Why is oil referred to as a fossil fuel? A. Oil was formed from decaying layers of plants in swamps millions of years ago. They fossilized into oil. B.

What role does sexual reproduction plays in Evolution

When does the embryo form?

A red and white snapdragon are crossed, and their offspring is pink. This is an example of

Around the Salt Lake, what is the geologic age of the area and what type of geologic unit is found there?

The cell walls of fungi differ from those of plants and protists because the cell walls of fungi O A. are composed of cellulose. O B. are composed of peptidoglycan. C. are composed of chitin. D. contain chlorophyll.

In module 1 you identify which species of lizards were most similar to one another based on

Are surface currents that flow towards the poles generally warm or cold?