HELP PLZ

1.) In the picture below, there is no salt in the beaker of water.

The little red and white molecules that you see in the beaker are water molecules.

We call this ‘time zero’ because no time has passed. See how the X is all the way at the bottom of the graph? That’s where Time equals zero; no time has passed.

The thermometer in the picture reads, “19.9 degrees Celsius”.

At time 0, what is the temperature of the water in the beaker in Celsius?

[Enter only the number; not units.]

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2.) How much salt is dissolved in the image below?

[Enter the number of grams only; do not enter any units.]

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vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.

b

explanation:

mitosis

tracks, burrows, eggshells, nests, tooth marks, or gastroliths

ill try to . no promises tho.

explanation: