The mass of a single tungsten atom is 3.05*10-22 grams. how many tungsten atoms would there be in 277 milligrams of tungsten?

Draw all possible lewis structures (including resonance structures for methyl azide (ch3n3 using lewis structure rules.

A student dissolves some solid NaNO3 in a beaker of water. Which are the solute and the solvent? Choose all answers that are correct. A. solute: water B. solvent: water C. solvent: NaNO3 D. solute: NaNO3

Why does coppers configuration have a full outer sub shell?

Is deionized water a homogeneous mixture?

Fe3O4 (s) + CO (g) →FeO (s) + CO2 (g) What coefficients will balance the equation? A) 3, 1, 1, 1 B) 1, 1, 3, 1 C) 3, 3, 1, 1 D) 2, 2, 6, 4

The sun is directly overhead at the equator on what day of the year? A. Zenith B. Solstice C. Equinox D. Ecliptic Isn't it the Solstice?

In the SI system of units, the mole is one of seven base units. It is frequently used in chemical calculations. However, a mole of something is just a particular quantity of it.

A student used a DCP solution (standardized to 9.98x10-4M) to analyze a sample of extract from 2.50g of solid food. The titration required 22.49mL of DCP. 87.00% of all the ascorbic acid in the food was collected in the extract.

Barium-131 is a radioactive isotope of the element barium used for gastrointestinal tract scans in doctors offices. Barium-131 has a half-life of 10 days.

The name for Na2 O in chemistry