Tough and malleable form of iron is

A. Wrought iron

B cast iron

C pig iron

D stainless steal

E non of the above

Nitrogen has two isotopes. One has an atomic mass of 14.003 amu and a relative abundance of 99.63% while the other isotope has an atomic mass of 15.000 amu and a relative abundance of 0.37%. What is the average atomic mass for nitrogen? a 14.

When one species benefits from the relationship and the other species is neither harmed nor benefited it is called

Which of the following statements explains why a sugar solution does not conduct electricity? a. Equal numbers of sugar molecules carry positive and negative charges, so no net charge is carried b.

Which formula represents a polar molecule? (1) O2 (2) CO2 (3) NH3 (4) CH4

Ayala is making salad dressing. She mixes oil and vinegar in a blender until a smooth consistency is formed. Explain whether this is a heterogeneous or a homogeneous mixture and why.

Which of the following types of coal has the highest energy content and produces the fewest polluting chemicals?

When nitrogen is removed from a sample of tha air in the process of nitrogen fixation, what happens to the patial pressure of nitrogen the sample?

How is density related to buoyancy

Why is a relatively large amount of energy required to turn liquid water into water vapor?

12.23 g of ammonia (NH3) are dissolved in enough water to make 560.0 mL of solution. How many moles of NH3 are added to the water?