How many electrons does it take to fill the outer energy level of most atoms

When naming hydrocarbons, what does the suffix - yne indicate about the structure of the molecule? A. There is a single carbon-bond in the molecule. B. There is a double carbon-bond in the molecule. C. There is a triple carbon-bond in the molecule.

What quantity of gas, in moles, is contained in 26.97L at STP?

A molecule of chlorine has atoms of the same element, and a molecule of carbon dioxide has different kinds of atoms. based on this information, chlorine is and carbon dioxide is.

Which statement describes the chemical properties of a metal? Metals tend to gain electrons and form cations. Metals tend to gain electrons and form anions. Metals tend to lose electrons in order to form anions.

Why are allergic reactions often referred to as inappropriate responses of the immune system?

In the second step of this reaction, isocyanic acid reacts to form melamine and carbon dioxide: HNCO (l) →C3N3 (NH2) 3 (l) + CO2 (g) Balance this reaction and enter the coefficients below.

If the Kelvin temperature of a gas is tripled and the volume if doubled, the new pressure will be ___. A. 3/2 the original pressure B. 1/6 the original pressure C. 5 times the original pressure D. 2/3 the original pressure the answer isnt b or c

To squeeze gas into a smaller space

What kind of solution would have a Kb value much greater than 1? A. a weakly acidic solution B. a strongly basic solution C. A strongly acidic solution D. A weakly basic solution

Zoom all the way in to Daphne Major. Describe its appearance in two sentences.