1. a substance, a₂b, has the composition by mass of 60% a and 40% b. what is the composition of ab₂ by mass?

2. draw a reaction profile for reaction 2n2+o2+heat→2n2o, must include proper labels for each axis, reactants, products, indication for activation energy and transition state.

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

In what environment would mineral formation caused by high pressures and high temperatures most likely occur?

How does blood clotting prevent the entry of pathogens through cuts and wounds? answer asap,, this is due tomorrow. will mark as brainliest or whatever you call it : )