Why is a Roman numeral needed for iron compounds but not for compounds containing magnesium?

A flexible container holds 100.0 miles of a gas. And additional 100.0 moles of gas particles are pumped into the container. The pressure and temperature remain constant. Which of the following stamens is true. A. Volume will double b.

Use the drop-down menus to identify the type of energy each phrase describes. The shortest wavelength of visible light Energy that can be felt as heat but not seen Short, invisible rays that can cause eye damage Visible light with the longest

1 2 3 4 5 6 7 8 9 luo Which is an example of a chemical change? water evaporating from a puddle cloth tearing when pulled wood forming sawdust when cut bread baking in an oven

What is the oxidation number for S in the compound SO3? (Recall that O has an oxidation number of - 2.) 0 +2 +4 +6

Which of the following is not a skill scientist use to learn about the world A. Predicting B. Observing C. Inferring D. Scientist use all of the above skills

Since the early 2000s, careers in the field of genetics have grown at a rapid pace. Which of these is a probable cause for this explosion of available and expanding jobs?

How many litres of 0.215 m NaCl contains 4.30 mol of this salt? Assume this solvent is H2O I'm confused on this question because little m is molality but when I looked this up on google, someone solved the problem assuming it was molarity

How can a neutral atom become a positively-charged particle?

The last column of the periodic table contains the noble gases, elements that do not easily form chemical bonds.

When pollution is removed from the air by a natural process, it