The answer is Smog, hope this helps! pls mark brainliest! thanks!
Answer:
<u>Group 2 is the correct answer.</u>
Explanation:
<u>Chlorine has a charge -1. It means that X is +2 so that the formula is XCl2. </u>
Answer: 1 molar NaOH contains 40 grams of NaOH per every liter of water
Explanation:
so 2 M NaOH contains twice that amount, ie. 80 grams per liter. Then, ine 250 ml of weater, there should be 80/4 = 20 grams of solid NaOH dissolved.
the prefix of the second word indicates that a molecule of carbon dioxide indicates that the compound contains two oxygen atoms
The Law of Conservation of Matter states that matter cannot be created or destroyed. In a physical change, substances can change form, but the total mass remains the same.