Which two chemical equations model double-replacement reactions? A. HC2H2O2 + LIOH - LIC H302 + H20
B. CH4 + 202 - 2H2O + CO2
C. AgNO3 + LICI - AgCl + LINO,
D. 2Na+ MgCl2
2NaCl + Mg

Astudent made the lewis dot diagram of a compound shown. what is the error in the lewis dot diagram? a)an o atom should transfer all of its six electrons to mg because the formula is mgo b) both electrons of mg should be transferred to one o adam because the formula is mgo c) the electrons should be transferred from each o add him to capital mg because mg has fewer electrons d) the number of dots around mg should be four because it has to transfer two electrons to each o

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Read "who built the pyramids? ”. leave this link open while you answer the questions throughout the assignment. give at least two reasons why some people claim the pyramids of giza were constructed by aliens.