In order to survive, plants absorb sunlight, water and nutrients from the soil. 1. Does this represent a physical or chemical change? 2.Justify why this is this
type of change. What
property is this?

The modern periodic table has groups.

Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?