Challenging Chemistry Problems with Detailed Answers

What is the name of the covalent compound PCl5
2 Answers
Hi everyone! Can anyone help me? Its dimensional analysis with chemistry and its due in 5 MINUTES!! :( Will mark brain lies for the CORRECT answer!!
1 Answer
How many elements are in this chemical formula? 2(NH4)2SO4
1 Answer
The MichaelisMenten equation is an expression of the relationship between the initial velocity ????0 of an enzymatic reaction and substrate concentration [S] . There are three conditions that are useful for simplifying the MichaelisMenten equation to an expression from which the effect of [S] on the rate can be more readily determined. Match the condition (e.g., [S]=Km ) with the statement or statements that describe it. (1) Doubling [S] will almost double the rate. (2) Half of the active sites are occupied by substrate. (3) About 90% of the active sites are occupied by substrate. (4) Doubling [S] will have little effect on the rate. (5) Less than 10% of the active sites are occupied by substrate. (6) This condition will result in the highest rate.
1 Answer
A material being examined is the same throughout. The material contains carbon and oxygen, chemically combined. What type of material is it?
1 Answer
A man is driving a car. He slows down to stop at a stop sign. When does the car have themost kinetic energy (KE)? When the car's speed is 30 miles per hourWhen the car's speed is 15 miles per hourWhen the car's speed is miles per hourThe car's motion energy is the same the whole time
1 Answer
How many moles of water were lost if the amount of water lost was 0.456 grams? Do not include units and assume three significant figures in all numbers. Be sure to include the zero before the decimal if the number is less than one.
1 Answer