Design a synthesis of isopropyl cyclopentylacetate from ethyl acetoacetate, diethyl malonate, and alkenes possessing five carbons or fewer.

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

Stage in which a typical star has completely stopped fusion

Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?