Why does a gymnast rub powder on his hands before exercising on a set of parallel bars?

Using retosynthetic analysis, complete the synthesis of 2-pentanone from ethanol, proceeding through a keto ester as the synthetic intermediate. g

The average speeds of gas molecules in. cylinders A, b, c, d are 0.01 m/s, 0.005m/s, 0.1 m/s and 0.5 m/s, respectively. which cylinder contains gas that is closest to. absolute. zero

Which choice is an example of a consumer? Question 9 options: tree fungi bee sun

Part a in an effusion experiment, it was determined that nitrogen gas, n2, effused at a rate 1.812 times faster than an unknown gas.

True or false? dry ice subliming (turning from a solid straight into a gas) is an example of a chemical change.

Can y'all give me some examples of physical changes

A nitrogen-containing compound shows no absorption band at ∼3400cm-1 and no absorption bands between ∼1700cm-1 and ∼1600cm-1. what class of compound is it

What is the mass of 35.2 ml of a solution that has a density of 1.12 g/cm (in dimensional analysis)

What is the molecular geometry, or shape, of beryllium chloride (becl2) ?

What is the best category for nf3? 1. amphoteric ion 2. lewis acid 3. salt 4. bronsted-lowry acid 5. arrhenius acid 6. arrhenius base 7. lewis base 8. weak electrolyte?