Why does the planets keep moving

On a small farm, the weights of eggs that young hens lay are normally distributed with a mean weight of 51.3 grams and a standard deviation of 4.8 grams. Using the 68-95-99.7 rule, about what percent of eggs weigh between 46.5g and 65.7g.

Draw the structure of gly-ala-glu in the ionic form that predominates at ph 7

Dr. Sinko places an aluminum block and a copper block in contact, and allows them to achieve thermodynamic equilibrium. Aluminum has a higher heat capacity (0.9 J/g) than copper (0.35 J/g).

For which of the following activities might you want to hire a chemist? testing a sample of water from a well finding a comet examining the structure of plant cells building a garage

A 0.510 m aqueous solution of KBr has a total mass of 67.0 g. What masses of solute and solvent are present?

The atomic mass of fluorine in 19.0 amu, so the molar mass is?

A rod shaped organism with no nucleus commonly found in Garbage will most likely belong to which kingdom

Alka-Seltzer is a solid mixture of two substances, sodium bicarbonate (NaHCO3) and citric acid (H3C6H5O7). The substances react to form water, carbon dioxide (CO2), and Na3C6H5O7.

Four properties of water are listed. 1. It is colorless and odorless in its pure form. 2. It reacts with metals to form metal hydroxide and hydrogen gas. 3. When heated to 100 °C, water evaporates. 4. It decomposes to form hydrogen and oxygen.

Water is A. Acidic B. Basic C. Neutral