What is the difference from living on a planet and living in deep space?
Water
Gravity
Weight
Mass
Pls help

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.

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?

The molar mass of iron(fe) is 55.8 g/mol. what is the mass in grams of 2.25 moles of iron?