1. How many moles are in 493.4 grams of calcium phosphide?

How fast do you think the air particles in this room are moving compared to a car going 50 mph (about 22m/s) ? Put your answer is in the form, 'a molecule travels ___ as fast as a car"

Calculate the ph of a 0.20 m solution of iodic acid (hio3, ka = 0.17).

Sulfur oxidation Choose one: A. contributes to global warming due to CO2 production. B. contributes to global warming due to methane production. C. causes environmental acidification due to production of sulfuric acid. D.

Order the materials/substances from lowest specific heat to the highest specific heat. Materials/substance: Diamond-.510, Water-4.186, Copper-.386, Air - 1.03

How much heavier is an alpha particle than an electron?

You would know you were in the troposphere If? It were raining on you You were floating in space You were flying in a high altitude jet You were in the ozone later

A burning match is an example of a chemical change phase change nuclear change physical change

The table below shows the shapes of two samples, C and D, when placed in three containers of different shapes.

How many grams of KCl are produced when 60 grams of K are reacted?

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