Which set of characteristics would you use to classify this planet as an inner or terrestrial planet?

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

Select the statement that describe chemical properties a. antacid tablets neutralize stomach acid b. helium is the lightest monatomic element c. water freezes at 0 celsius d. mercury is liquid at room temperature

What is the chemical formula for a compound between li and br? libr li2br libr2 libr3