In a south wind, the wind is coming from the

A fluorine ion has nine protons and a charge of - 1. how many electrons are in an ion the fluorine. A. 1 B. 9 C. 10 D. 8

If a container holds 1mol of hydrogen, 2.5mol of helium, and 2mol of oxygen at a total pressure of 4atm, what is the partial pressure of the oxygen gas?

What is the function of maleic anhydride

How many grams of NaOH are needed to neutralize 20 mL of 0.150 M H2SO4

Which two trials could be used to measure the surface area

You are conducting an experiment on plant growth. You take a plant fresh from the soil that weighs 5 kilograms (kg). Then you dry the plant overnight and determine the dry weight to be 1 kg.

Proof is the standard measure used to determine how much alcohol is contained in an alcoholic beverage

One type of detector used in gas chromatography is a thermal conductivity detector (tcd). what two elements commonly make up the wire (filament) used in tcds

A sample of C3H8 has 6.72 x 10^24 H atoms. What is the total mass of the sample?

What are the two major types of cells that occur in nature?