What is the group of elements that has a completely filled outer level of electrons is known as?

If methyl orange is added to a substance and it turns the substance red, what does this tell you about the pH of the substance? Would this substance be an acid or a base?

In addition to resembling one another, what other criteria are required for organisms to be grouped in the same species? A. They migrate only with one another. B. They fight only with one another. C. They share food only with one another. D.

Which conditions are equal to STP? 30°C, 100 kPa - 273.15°C, 1 atm 0°C, 760 mmHg 25°C, 101.325 kPa

A scientist is studying a shock wave from an earthquake. What kind of wave is being studying?

Using the equation below, what is the correct form of the conversion factor needed to convert the number of moles of H2O to the number of moles of NH3 produced?

The same amount of energy is required to remove each electron sequentially from an atom. A. TrueB. False

Crude oil may contain hundreds of different types of hydrocarbons. Some examples include: Butane (C4H10) Dodecane (C12H26) Octane (C8H18) Benzene (C6H6) Many common fuels, such as gasoline and kerosene, are combinations of these substances or others.

What will happen if the concentration of water inside a cell is higher than the concentration of water outside a cell?

During a lab, you heat 1.04 g of a niso4 hydrate over a bunsen burner. after heating, the final mass of the dehydrated compound is 0.61 g. determine the formula of the hydrate and also give the full name of the hydrate.

Which molecule is a source of energy, a store of energy, and can mix with water?