What is a key property of crystals?

a) Repetitive pattern

b) Brittle

c) Malleable

d) Solid

Which part of the eye controls whether or not the pupil dilates or constricts? iris cornea retina optic nerve

What is the product of Ag+KNO3 if using single replacement

Which species Al or Cu will have the greater attraction for the chlorine atom?

Which weighs more, 0.50 mole oxygen atoms or 4 mole of hydrogen atoms?

How many valence electrons are found in the outermost energy level of fluorine (F) ? A) 2 B) 7 C) 9 D) 19

What was henri becquerel studying when he accidentally discovered radioactivity?

A substance which is made up of identical atoms is a (n): chemical element compound alloy

Which answer choice correctly explains how the structure of ionic compounds differs from covalent compounds? Ionic compounds are made of a network of ions while covalent compounds are made of a network of molecules.

If 3.0 mol of NaOH is dissolved in. 50 L of water, what is the molarity? Select one

How many electrons in an atom can have a quantum number of n = 2?