Why does the evaporation of sweat cool your body on a warm day

How can you use the periodic table to find the number of protons in one atom of an element? The number of protons is the same as the atomic number of the element. The number of protons is the same as the atomic weight of the element.

c. Lead crystallizes in a face-centered cubic structure with a density of 11.34 g/cm3. Polonium crystallizes in a simple cubic structure with a density of 9.3 g/cm3.

Below are 5 sets of potential solutes for you to compare. Both members of each pair are very soluble in water.

Which actions would increase the rate at which salt dissolves in water

What chemical reaction is 2H2o2

The iceman known as Otzi was discovered on a mountain on the Austrian-Italian border. Samples of his hair and bones had carbon-14 activity that was about 12.5% of that present in new hair or bone.

A student reads the label on the bottle of salad dressing shown below. ingredients oil, vinegar, spices directions: shake well before using. refrigerate after opening. why would the student shake the salad dressing well before using it? a.

Why doesn't oil dissolve in water? oil molecules are non-polar. oil molecules carry a net negative charge. oil molecules carry a net positive charge?

Within a substance, atoms that collide frequently and move independently of one another are most likely in which state of matter? A-Liquid B-Water C-Gas D-Solid

which factor is the most common source of erosion in the high elevation of the swiss alps A. liquid water B. glaciers C. wind D. plants