Which metalloid is in the fourth period and the same group as carbon?

Which compound has both ionic and covalent bonds? (1) CO2 (3) NaI (2) CH3OH (4) Na2CO3

An atom can be described as a-the smallest particle that has all the characteristics of a compound b-the smallest particle that has all the characteristics of an element c-a charged particle that is similar to a molecule d-a charged particle that is

Marcia has 2 liters of a 60% concentrated solution of phosphoric acid. She wants to add 3 liters of less concentrated phosphoric acid solutions, so that she has 5 liters of a solution with a concentration less than 50%.

Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20L under 0.988 atm pressure. a. 306K c. 308K b. 307K d. 320K

How do i give the number of significant figures in 0.0037 mm

Write the name of the following compound NH^3

Relate How do atoms relate to cells?

Rank the following compounds in terms of decreasing vapor pressure. Cl-CH2CH2OH CH3-O-CH3 CH3CH2OH CH3OH

A specific steroid has a λmax of 282 nm and a molar absorptivity ε of 11, 500 L mol - 1 cm - 1. What is the concentration of the compound in a solution whose absorbance at 282 nm is A = 0.060 with a sample pathlength of 1.00 cm?

The chemical formula for a covalently bonded group of atoms is called a