Which trait is found in early embryos of both birds and humans, but then disappears from each during development?

If a sample of copper with a density of 8.90 g/cm3 has a mass of 798 g, what is its volume? 89.7 mL 0.0111 mL 7.10 x 103 mL

How is molarity measured? O A. In liters of water per moles of a dissolved substance B. In liters of water per gram of a dissolved substance O C. In moles of a substance for 1 g of that substance D. In moles of a substance dissolved in 1 L of water

Calculate the number of milliliters of 0.568 m ba (oh) 2 required to precipitate all of the fe3 + ions in 165 ml of 0.663 m fe (no3) 3 solution as fe (oh) 3.

Tails of phospholipids that don't like water

How many grams of O2 must be placed in a 3.33 liter container in order to exert a pressure of 2.46 atm at 27°C?

In an experiment, an unknown gas effuses at one-half the speed of oxygen gas, which has a molar mass of 32 g/mol. which might be the unknown gas?

7. Foam cup A has 36 mL of water that contain 2 moles of HCL at 20°C. Foam cup B has 36 mL of water that contain 2 moles NaOH of at 20°C. The contents of foam cup A are added to foam cup B and a chemical reaction occurs.

Which statement is false? a. At equilibrium, equal amounts of products and reactants are present. ΔG° is a function of Keq. b. When reactants become products, they do so through an intermediate transition state. Most biocatalysts are proteins.

What is the name of a compound that has the formula C6H6

A 8.53 g sample of BaCl2 barium chloride is reacted with silver nitrate to produce silver chloride and bariums nitrate to give 8.72 g of silver chloride.