50.0 grams of a pure gaseous compound was found to contain 26 grams of oxygen. What is the percentage by weight of oxygen in this compound?

Answer in units of g.

What is how fast an objects speed is changing?

One mole of air at 310 k confined in a cylinder under a heavy piston occupies a volume of 4.9 l. the heat capacity of air under constant volume is 5 2 r. find the new volume of the gas if 3.9 kj is transferred to the air. answer in units of l

Write the element symbol for the element with the abbreviated electron configuration [ne]3s23p2.

Why is oxygen crucial to living things?

Which statement describes a reason to consider air a mixture? A) The major constituents of air are gaseous elements. B) The components of air can be separated by chemical processes.

What type of rock is sandstone

According to the Br? nsted-Lowry theory, water A. acts as a base when it accepts a hydrogen ion. B. can be neither an acid nor a base. C. can act as an acid by accepting hydrogen ions. D. can accept but not donate hydrogen ions.

Witch type of crust is thick and contains granite

A chemical base may be defined as a compound which contributes hydroxide ions or increases the OH concentration when dissolved in water. True False

Correct name for LiCl