How many variables should a scientist change at one time to have a good experiment?

When the partition is removed, the gas expands and fills both compartments. How many moles n of gas were initially contained in the lower compartment if the entropy change of the gas in this free-expansion process is 17.28 J/K

Yes carbohydrates have both monomers and polymers. Monomers of carbohydrates are monosaccharides (mono - one; saccharide - sugar) which are simple sugars like glucose, fructose and galactose.

The text says, "refugee and immigrant Children in Canada have significant similarities." what does significant mean?

The movement of tectonic plates and in two locations is described below: location a: tectonic played push together Location B: tectonic plates push apart

The formal procedure for taking equipment out of service and ensuring it cannot be operated until an unauthorized person has returned it to service is

What is a mutual attraction between the nuclei and electrons in two different atoms called? A) a chemical bond B) a compound C) a cation D) a anion

elements on the right side of the periodic table differ from the elements on the left side in that elements on the right side

The empirical formula of glucose is CH2O the molecular formula of glucose is 6 times than the empirical formula. what is the molecular formula of glucose?

A compound with molecular formula C6H15N exhibits a singlet at d 0.9 (1H), a triplet at d 1.10 (3H), a singlet at d1.15 (9H), and a quartet at d 2.6 (2H) in its 1HNMR spectrum. Its IR spectrum shows one medium absorption band near 3400 cm-1.

A system that transmits genetic information from one generation to the next