Cu có hai đồng vị là 63cu và 65cu biết rằng M cu = 63.54. Nếu như có 500 nguyên tử Cu thì trong đó có bao nhiêu nguyên tử là 63 Cu

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean

How have the greenhouse gasses increased from the year 2000 to 2018

Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous