Biết rằng bốn nguyên tử magie bặng bằng ba nguyên tử nguyên tố x hãy viết tên và kí hiệu học của nguyên tố x

Temperature is _related to the average kinetic energy of a gas. inversely directly not disproportionally

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.