An object has a density of 20 g/cm3. When placed in a cylinder, it displaces 5 mL of water. What is the mass of the object?

A) 0.25 g

B) 4.0 g

C) 100.0 g

Suppose a chemist has two fatty acids and wants to identify which one is saturated and which one is unsaturated. She has discovered that they have the same chain length. She can identify the saturated fatty acid because it has more A-carbon atoms.

In the laboratory you dissolve 15.9 g of barium chloride in a volumetric flask and add water to a total volume of 375 ml. what is the molarity of the solution

What volume of 0.0250 m calcium hydroxide is required to neutralize 33.50 ml of 0.0200 m nitric acid?

The Aurora Borealis or northern light occur when solar flares react with the atmosphere near the north poles. The Aurora give off colred light because electricity is flowing.

Da combustão de metais no oxigénio resultam óxidos metálicos, substâncias cujos corpúsculos são?

How to seperate sand and water

If the products of a certain reaction are favored (i. e., the ΔG value of the reaction is negative), one would expect a significant amount of product to form when the reactants are combined.

Water (H2O) is not found on the periodic table of the elements because water is

Predict the chemical formula of butyne, having one carbon-carbon triple bond.

Based on the formulas, select the compounds below that are covalent: KBr SiF4 Al2O3 CO2 NaCO3 S7O2 PCl3 Fe3N2 H2O S2F10