Calculate the enthalpy change when 2 l of liquid nh3 is burned in air to give n2 (g) and h2o (g). express your answer using two significant figures.

Why do the gas gaints have many moons

How can the precision due to random experimental error be improved

How are pure crystalline substances characterized?

Breathing and acid-base balance lab report 10 1. what was the starting color and final color for beaker 1? what was the time to change to the final color (include your units) ?

A single drop of soda contains how many atoms?

Ions that consist of a single atom are called ... ions

Ecosystems are clearly separated from one another. Where one ecosystem stops, another begins A: True B: False

Mass_mole relationship

What is the momentum of an 800-kg car | traveling at a velocity of 10 m/s? What is its momentum if it speeds up to 50 m/s?

How many grams of CuSO4 are there in 100.0 g of hydrate? How many moles?