How many grams of Hydrogen (H) would need to react with 190 grams of Fluorine (F) to make 200 grams of HF (Hydrofluoric Acid) ? Question 6 options: 200 20 10 5

A vapor is which state of matter Solid Liquid Gas All of the above

How to find the valency of iron

A students plucks a guitar string. When will the sound produced by the string reach the students ears?

An isotope undergoes radioactive decay by emitting radiation that has a - 1 charge. What other characteristic does the radiation have? some shielding required no mass large mass high penetrating power

Carbon has four electrons in its outer electron shell, therefore: Select one: a. it has a filled outer electron shell. b. it can form four single covalent bonds c. it does not react with any other atoms. d. it has a positive charge.

What is the subscript present in NaCl?

Identify each element as a metal, metalloid, or nonmetal. a. gold b. silicon c. manganese d. sulfur e. barium

Extreme (1, 2, or 3) in the center of nebulae causes hydrogen atoms to shed their electrons and collide with one another. The (4, 5, or 6) of the collisions cause the smaller, bare nuclei to fuse into large helium nuclei. 1. expansion 2. heat 3.

What type of change is a substance that changes form but remains the same?

How to generate crystal structure using wyckoff positions?