Which of the following elements is most metallic?

A. boron

B. carbon

C. nitrogen

D. fluorine

E. sodium

How many grams of NA required to react with 75.0 gramsof CL2?

If an element has a half life of one million years, how long will it take to be completely gone

the facts, figures, and other observations that are gathered through using one or more of your senses are called p. s this is science

Combustion analysis of naphthalene, a hydrocarbon used in mothballs, produced 8.80 g co2 and 1.44 g h2o. calculate the empirical formula for naphthalene.

When a polypeptide is in its native conformation, there are weak interactions between its R groups. However, when it is denatured there are similar interactions between the protein groups and water.

Two pure elements react to form a compound. One element is an alkali metal, X, and the other element is a halogen, Z. Which of the following is the most valid scientific claim that can be made about the compound? a. It has the formula XZ2 b.

Are protons positive and neutrons neutral

Why might it be useful to determine the elements that a planet or moon is made up of?

Which of these is an example of a solution A Sand stirred in water B Sugar stirred in tea C A glass of water with ice in it D Oil and vinegar in a salad dressing jar

What are properties of colloid