You are testing a silver rock with a battery, wire, and a light bulb. The silver rock has a positive test and lights up the bulb. What can you narrow the sample down to? A. Metal

B. Metalloids

C. Non-metal

What’s the percent by mass of carbon in c10h14n2

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3

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?