How many O2 molecules are present in 0.470 g of oxygen

gas? Can you guys tell me how answer this kind of problem ... I appreciate it.

Two things that biomedical has invented or innvated

Horizontal rows are called

An unknown substance is oxidized using the reference reaction of hydrogen i hydrogen. The standard cell potential is measured to be 0.367 V.

When filling degenerate orbitals, electrons fill them singly first, with parallel spins is known as When filling degenerate orbitals, electrons fill them singly first, with parallel spins is known as: A. Hund's rule B.

Suppose you increase your walking speed from 4 m/s to 13 m/s in a period of 1 s. What is your acceleration? m/s2

1. Calculate the end velocity of a rocket that traveled 16km in 2 seconds. distance time 2. Calculate the rockets acceleration m with a start velocity of 0m/s and the end velocity from #1 for 10 seconds.

How are linear and nonlinear graphs alike

Uranium nuclei split during nuclear fission true or false

Calculate the mass of 2.25*10^22tungsten atoms.

Which weathering process involves physical forces but not chemical reactions or dissolving of minerals