Answer: 24.2109 g
Explanation:
Hydrogen has a molar mass of 1.007947 g/mol so since hydrogen gas has 2 hydrogens, you can multiple this by 2 and then multiply that by 12.01 to get the total mass of 12.01 moles of hydrogen gas.
Answer: C
Explanation:
Cells have different receptors on their surfaces that are responsive to particular signals (such as hormones). When a signal interacts with the particular receptor, a particular response is invoked in the cell. This signal may be produced even by a cell that may be far away from the target cells. This is how cells communicate with each other to maintain homeostasis in the body.
If a mixture is a physical change then it would be salt water
Explanation:
5 carbons with their substituents being bromo,chloro and dimethyl
I numbered form 1 to 5 from left to right hence the diagram above