A compound contains carbon, hydrogen, and nitrogen as its only elements. a 9.353 g sample of the compound contains 5.217 g of carbon and 1.095 g of hydrogen; the remainder is nitrogen. what is the empirical formula for the compound?

The concentration of a saturated solution of an ionic compound at 25 oC is 7.00E-4. The formula for this compound is XQ3.

Cytoplasm Cell Wall Compared to the structures in an animal cell, which of the following structures is found only in a plant cell? Mitochondrion Mitochondrion Cell Wall Cytoplasm Nucleus Nucleus 19.

Why are formula equations using symbols and numbers used more commonly than word equations?

A company wants to develop audio speakers using an inexpensive type of plastic that has a very high quality of sound output.

A sample of an unknown liquid has a volume of 30.0 mL and a mass of 6g. What is its density?

Two pieces of silk have an electric charge after being rubbed on a piece of amber. What will happen when the two silk pieces are brought close together? A. They will repel one another. B. They will attract one another. C.

The chemicals formula of glucose is c6h12o6. what are the names of the elements in glucose and how many atoms of each element are present in glucose molecules

When K-37 undergoes positron emission, what is the resulting atom? A) K-37 B) K-38 C) Ar-37 D) Ar-38

Consider the following reaction where Kp = 4.55*10-5 at 723 K: N2 (g) + 3H2 (g) ⇋ 2NH3 (g) a) If the three gases are mixed in a rigid container at 723 K so that the partial pressure of each gas is initially one atm, what will happen?

Which terms are used to identify pure substances? (1) an element and a mixture (2) an element and a compound (3) a solution and a mixture (4) a solution and a compound