The label on a bottle of water indicates the bottle contains 455 ml of water. how many liters of water are in the bottle?

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?

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

In an experiment, 45g of silicon tetrachloride are treated with 45ml of water. what is the theoretical yield in grams of hcl