Which of the following is an element?

a. carbon monoxide gas (co)

b. magnesium chloride salt (mgcl)

c. hydrochloric acid (hcl)

d. zinc metal (zn)

Fluorine has seven electrons in its outermost shell. it will most likely try to join an atom with

The amount of carbon in the atmosphere is about what percent of the total amount of carbon on earth

What factors influence the gravitational forces between objects?

What is the molality of a solution when 0.50 moles glucose is dissolved in 750 g of water?

What is the the device used to measure the average kinetic energy of the particles in a substance

What is the molarity of a solution that has 548 grams of HCl dissolved in 1.50 l water?

Steve puts some cheddar cheese in a pan on the stove and starts to melt it. After a little while, there is a layer of oil floating on top of the cheese. From the way the cheese melted, Steve knows it is a A Element B Solid C Mixture D Pure Substance.

Which experimental feature of the MALDI-MS technique allows the separation of ions formed after the adduction of tissue molecules? A) Distance travelled by ions depends on the ion charge. B) Velocity of ions depends on the ion mass-to-charge ratio.

Which temperature is required for the cell potential to be the standard cell potential? A) - 273°C B) 100°C C) 25°C D) 0°C

1. the purpose of the aqueous solutions in a galvanic cell is to? a. provide ions to be oxidized and reduced b. provide a path for the free flow of electrons c. maintain charge balance in the cell d. correct any volume changes in the cell 2.