Explain how to convert a mass of compound A to a mass of compound D in words using the following reaction: 2A + 4B = C + 3D

You don't have to just give me the answer but if you can help me understand id appreciate it greatly

What is limiting reactant? with examples

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?