Are all reactions reversible?

A chemical equation is shown: AI + O2 → Al2O3 According to the law of conservation of mass, how many atoms of oxygen exist in the products of this reaction? A) 6 B) 5 C) 3 D) 2

A miner develops cancer of the esophagus. ten years later

Is c4 a compound element or mixture

What is a property of an acid

Which statement about surfactant molecules is correct? A) The head is hydrophilic and the tail is lipophilic. B) The head is lipophilic and the tail is hydrophilic. C) The head and tail are both hydrophilic D) The head and tail are both lipophilic.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda