TIME CRUNCH PLS HELPWhen ethane, C2H6 , reacts with chlorine gas the main product is C2H5Cl, but small amounts of C2H4Cl2 are produced. What is the percent yield of C2H5Cl if the reaction of 170g of ethane with 205g of chlorine gas produced 162g of C2H5Cl?

Jewelweed, a flowering plant, has seed pods that burst open when touched and forcefully eject their seeds. these structures are favorable because they a. can cause genetic changes to occur. b. prevent germination within the seed pod. c. aid in the dispersal of the species. d. attract insects that aid in pollination.

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g.  what is the percent by mass of water in the hydrate?   %