What kind of reaction happens when two compounds switch elements? A. A double-replacement reaction
B. A single-replacement reaction
C. A synthesis reaction
D. A decomposition reaction

its first and third is your answer i did the qustion the fourth isnt right

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.