The following questions pertain to a pure sample of iron and a sample of steel. a. Create an illustration of pure iron which shows the iron atoms and provides a visual representation of the electron sea model.
b. Create a representation of steel that shows the iron and carbon atoms.
c. In what way have some of the bonds changed when this alloy was formed?
d. What type of alloy is steel?
e. Identify four properties that change when carbon is added to pure iron in order to make steel? Explain how carbon changes the properties outlined in part e. f.

What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false