Neutral atoms of a specific element can have different numbers of which of the following?

Contrast mixtures with pure substances

What would you predict about a chemical that has a hydrogen ion concentration of 1 x 10 to the - 12 power M?

Why it is advised to use umbrella when you go out in sun

One liter of ocean water contains 35.06 g of salt. What volume of ocean water would contain 1.00 kg of salt? Express your answer in L using the correct number of significant figures. Do not enter your answer using scientific notation.

Compare the vapor pressure curves of 1-butene and 1-heptene. Explain your reasoning.

Which best describes the two ways that energy is measured A. In convection and in temperature B. In temperature and in radiation C. In radiation and in convection D. In wavelength and in temperature

What usually happens to the outer electrons of metallic atoms when they combine chemically with nonmetallic atoms?

How many moles of ca atoms are in 534.0 g ca?

Select all that apply. reactions between atoms occur when: an atom seeks to fill its outer shell of electrons an atom seeks to balance its positive and negative charges the reaction will result in paired electrons

Have scientists found any reliable predictors for earthquakes, like radon gas release or weird animal behavior?