If you burn 28.2g of hydrogen and produce 252g of water, how much oxygen reacted

A sample of hydrogen gas is mixed with water vapor. The mixture has a total pressure of 755 torr and the water vapor has a partial pressure of 24 torr. What amount (in moles) of hydrogen gas is contained in 1.55 L of this mixture at 298 K?

What is the mass in grams of a cube of copper that has a volume of 74.1cm

A substance is 35.7% carbon by mass. how much carbon could be recovered from 769 g of the substance?

How many moles are in 6.5g of carbonate

Refer to the following table for information about gold and mercury. Then choose which statements are true about equal sample sizes of the metals. Element Specific Heat (cal/g°C) Density (g/cm3) gold 0.031 19.3 mercury 0.033 13.5

How do valence electrons relate to the chemical reactions of an element?

What is the weighted-average mass of all known isotopes for an element

What is the Celsius equivalent of 212°f

Identify the characteristics of tornadoes and hurricanes

When magma intrudes parallel to another rock layer, the formation is called a (n) A. sill. B. dike. C. extrusion. D. unconformity.