How many molecules are there in 0.250 moles of oxygen?

The formula for dextrose is C6H1206. calculate the formula mass

I want to balance Fe2so4+H20

I don't understand periodic trends for ionization energy and atomic radius.

When electrons gain energy, what can they do? A. drop to a lower energy level B. move to a higher energy level

2. What have you heard about plate tectonics? I do not no

Arrange the following bonds in order of increasing polarity: O-H, C-H, F-H, H-H A) O-H B) C-H<0-H C) H-H D) C-H E) HH

How fast do p waves travel?

Calcule o calor especifico do estanho sabendo que foram necessarias 100 cal para elevar em 20ºC a temperatura de 100 g de estanho

The electric force between two charged objects is 0.24 newtons. If the distance between them is increased by a factor of 4, what will be the new force? A. 0.015 newtons B. 0.03 newtons C. 0.06 newtons D. 0.12 newtons E. 0.36 newtons

Why do you need a balanced equation for stoichiometry?