Which of these electrons is a halogen?

Potassium (k)

Calcium (ca)

Vanadium (v)

Gallium (ga)

Bromine (br)

The water-gas shift reaction co (g) + h2o (g) ⇌co2 (g) + h2 (g) is used industrially to produce hydrogen. the reaction enthalpy is δh∘=-41kj. to increase the equilibrium yield of hydrogen would you use high or low temperature?

if an atom has a mass number of 226 and an atomic number of 88. how many protons and neutrons does it have

Name the layers of earth in order from most dense to least dense.

Which type of matter needs to be separated by chemical methods (breaking of bonds required) such as electrolysis or decomposition

The environment with the greatest biodiversity is the one with the greatest variety of

What is the term for the amount of salts in water? Evaporation Evaporation Salinity Thermocline Density

In an acid-base titration, of 20 ml of a m HCI solution with 1 m NaOH. How many ml of NaOH are needed

Which of the following is not a source of air pollution related to human activities

Objects and substances in motion is I

If you were to remove an electron from a sodium atom that has eleven protons, what would be the electrical charge of the ion?