How many valence electrons does a helium atom have?

One kilogram is the same as

In size. 1 Compare and Contrast How does fermentation that causes dough to rise differ from fermentation in muscles?

Which of the following statements are TRUE reguarding unicellular and multicellular organisms? A. Bacteria are made of many cells and are therefore considered multicellular B.

The element X has 2 valence electrons. its is a

What does the term chemistry mean?

When a solution is considered to have a high concentration of hydrogen ions (H+) is also considered to be? a) acidic b) basic c) neutral d) hot

Why does the sky change colors at sunset? 1 because the sun changes colors 2 because the atmosphere reflects colors 3 because long wavelengths are scattered the least 4 because short wavelengths are scattered the least

Consider the reaction N2 (g) + 3 H2 (g) 2 NH3 (g), which is exothermic as written. What would be the effect on the equilibrium position of adding N2 (g) ?

According to Table I, which equation represents a change resulting in the greatest quantity of energy released? 1. 2C (s) + 2H2 (g) - > C2H4 (g) 2. 2C (s) + 3H2 (g) - > C2H6 (g) 3. N2 (g) + 3H2 (g) - >2NH3 (g) 4. N2 (g) + O2 (g) - > 2NO (g)

Calculate the number of liters in 3.25 g of ammonia