A nonmetallic element x forms an ionic compound with sodium that has the formula na2x. the charge on the x ion must be

A certain material has a density of 0.2 g/ml is this material good for building a bridge or for making cushions for a couch

How to balance the chemical equation H2 + N2

Describe what the greenhouse effect is and how it is caused on a molecular level.

A 276.0 g piece of granite, heated to 596.0°C in a campfire, is dropped into 1.45 L water (d = 1.00 g/mL) at 25.0°C. The molar heat capacity of water is cp, water = 75.3 J / (mol ·°C), and the specific heat of granite is cs, granite = 0.

Calculate the mass of products obtained when 20 g of methane undergoes combustion in the presence of 16 g of oxygen?

What is the element Ar classified as in the periodic table?

Two objects, one heavy and one light, travel at one of two speeds. Which will have the most inertia?

Which statements correctly describe water boiling in a pot? Air bubbles from the atmosphere are being absorbed. The water's internal kinetic energy is increasing. The water is gaining internal potential energy. The water's temperature is increasing.

Biofuel is any fuel that is produced from living or once living matter in a short period of time, days, weeks, or even months.

How are revolution and year related