3 Cu + 8HNO3
3 Cu(NO3)2 + 2 NO + 4 H20
In the above equation, how many grams of water can be made when 3.5 moles
of HNO3 are consumed?

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

One does not belong why? ice, gold ,wood ,diamond and table salt

Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)