Hypothesis: If a cat is presented with different colored cat food, then they will prefer to eat more of the brown colored cat food.
What is the independent variable?
What is the dependent variable?

Calculate the mass percent of hydrogen in methyl acetate

When the volume and number of particles of a gas are constant which of the following is also constant

Imagine that twenty i. u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?