Answer:
The principle component of organic molecules is carbon. Carbon atoms are able to bond with each other to form bigger and bigger structures. In addition, organic compounds frequently contain hydrogen, oxygen and nitrogen; phosphorus and sulfur are occasionally seen as well.
Explanation:
The 3% mass/volume H₂O₂ means 3 g of H₂O₂ in 100 ml of water.
Now, Molarity (M) = No. of moles of H₂O₂ / Volume of solution in liter
No. of moles of H₂O₂ = Mass / Molar mass = 3 g / 34 g/mol = 0.088 mol
So, molarity = 0.088 × 1000 ml / 100 ml = 0.88 M
In case of 2.25 % H₂O₂,
No of moles = 2.25 g / 34 g/mol = 0.066 mol
Molarity = 0.066 mol / 0.100 L = 0.66 M.
B that’s is not a chemical change because I took the test
Answer: 0.052torr
Explanation: Please see attachment for explanation
Answer:
The student measured the cup and got an incorrect answer
Explanation:
because he was in a rush.