Based on it's group number, what ion charged state does bromine form? a.) 1- b.) 2-

Identify and describe the three ways that mutations affect organisms.

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?

What prefix multiplier is appropriate for reporting a measurement of 5.57 ×10−5 m?