An unknown substance is a yellow gas at room temperature. Is this substance ionic or covalent?

How do you know?

Indicate how the concentration of each species in the chemical equation will change to reestablish equilibrium after increasing the pressure. N2 (g) + 3H2 (g) 2NH3 (g) The concentration of N2 will (A) stay the same. (B) decrease. (C) increase.

Look at the chemical formula for glucose, how many carbon C, hydrogen H, and oxygen O, atoms are found in a molecule of glucose?

Use your understanding of the ideal gas law to identify the correct relationships among the variables Pressure is Temperature is Volume is Moles are

One mole of neon gas equals how many grams

A balloon is taken to a mountain top and inflated with helium to a volume of 5.0 L. The balloon is then released and rises to an altitude where the helium has a new volume of 25.0 L and a pressure of 0.18 atm.

Name two alternative for solar power

In an oxidation-reduction reaction, what happens to the electrons in the reduction process? A. Electrons are bonded. B. Electrons are gained. OC. Electrons are lost. D. Electrons are replaced.

Describe the energy in nuclear fuel and the way in which it's converted to electrical energy.

What is the concentration of O2 (g), in parts per million, in a solution that contains 0.008 gram of O2 (g) dissolved in 1000. grams of H2O (l) ?

Give the mass percent of carbon in C14H19NO2?