Covalent bonds can be best described as

A sample of an ideal gas at 15.0 atm and 10.0 l is allowed to expand against a constant external pressure of 2.00 atm at a constant temperature. calculate the work in units of kj for the gas expansion.

A child has a balloon in his house in the air conditioning. He goes outside with the balloon on a hot day. What happens to the temperature of the gas and volume of the balloon?

Which particle contains the greatest number of electrons?

Acid precipitation is increasing what is the ph of uncontaminated rain

What condition results in magma cooling and forming a "glassy" igneous rock? A) extremely slow cooling B) cooling in the presence of oxygen C) extremely rapid cooling D) partial melt cooling E) extremely high pressure

What is the total number of atoms in 80 grams of neon?

The pressure of a gas results from the sum of the volumes of the particles being larger than the container volume. gas particles colliding with each other. gas particles colliding with the container walls.

3. Look at the positions of calcium, beryllium, and magnesium on the periodic table. Based on their locations, predict how many valence electrons these elements have and predict what the reactivity of these elements will generally be.

Which of the following is an electronic device that measures ph? a. a ph meter b. a molarity meter c. a hydroxide meter d. a hydronium meter

Compression and erosion of rocks are responsible for the creation of