Predict whether the following double-replacement reaction will produce a precipitate: ca(c2h3o2)2 + na2co3 --> caco3 + 2 nac2h3o2
no; all products are soluble
yes; the caco3 will precipitate
yes; the nac2h3o2 will precipitate
yes; both the caco3 and nac2h3o2 will precipitate

What is limiting reactant? with examples

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

The is a particle with one unit of positive charge a. proton b. positron c. electron d. nucleus awnser quick it is a important science test!