There are four substances, A, B C and D. A and C are pure substances. They cannot be broken down into anything simpler by chemical methods. B consists of A and D, which are
not chemically bonded together. D is a pure substance. We can decompose D into A and C
using chemical methods.

1. Which substance is a compound?

Ineed this asap miguel's boss asks him to distribute information to the entire staff about a mandatory meeting. in 1–2 sentences, describe what miguel should do.

Popeye produces 20 cans of spinach in 8 hours. wimpy produces 15 hamburgers in 10 hours. if each hamburger trades for 1.5 cans of spinach, then: a.wimpy’s production and productivity are greater than popeye’s. b.popeye’s production is greater than wimpy’s, but his productivity is less. c.wimpy’s production is greater than popeye’s, but his productivity is less. d.popeye’s production and productivity are greater than wimpy’s.

An electronics store is running a promotion where for every video game purchased, the customer receives a coupon upon checkout to purchase a second game at a 50% discount. the coupons expire in one year. the store normally recognized a gross profit margin of 40% of the selling price on video games. how would the store account for a purchase using the discount coupon?