2) When 100.0 mL of a 0.50 M solution of hydrochloric acid, HCl, at 22.0°C reacts with 2.00 grams of sodium hydroxide, NaOH, the temperature increases by 12.5°C. What type of reaction (physical or chemical) takes
place? How do you know

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?

Rank the four gases (air, exhaled air, gas produced from from decomposition of h2o2, gas from decomposition of nahco3) in order of increasing concentration of co2

Ok, so i have 2 questions. try to answer them both: (the topic is fire) 1) how can you represent the chemical reaction of fire? 2) what kind of bond is formed in this chemical reaction