Which of the following would most likely contain a fossil?

intrusive igneous rock

extrusive igneous rock

chemical sedimentary rock

organic sedimentary rock

Otters are one of the few animals that can use tools. When otters need to open the hard shells of the animals they eat, they have been known to use a rock. Some, but not all, otters have been seen using this behavior. This behavior is most likely.

According to the solubility rules, which of these compounds is soluble in water? a. CaCO3 b. PbCl2 c. Cu (NO3) 2 d CaSO4

Calculate the volume of 0.0500 M H2SO4 solution required to completely react with 20.0 mL of 1.00 x 10-3 M NaOH.

Fuel is injected at which state diesel cycle

Why is the structure of a molecule important to its function

Calculate the ΔHrxn for the following reaction: CH4 (g) + 2Cl2 (g) - - > CH2Cl2 (g) + 2HCl (g) Use the following reaction and given ΔH's: CH4 (g) + Cl2 (g) - - > CH3Cl (g) + HCl (g), ΔH = - 99.

Select all that apply to diffusion. A solid cannot diffuse in to another solid. Solids can diffuse in liquids. Liquids can diffuse in liquids. It is the process of intermingling atoms from one substance into another.

We are all familiar with the general principles of operation of an internal combustion engine: the combustion of fuel drives out the piston.

A first order reaction has a rate constant of 0.816 at 25 oC. Given that the activation energy is 22.7 kJ/mol, calculate the rate constant at 34 oC. (enter answer to 3 decimal places)

Part b select the ester that is formed when propanoic acid reacts with isopropyl alcohol in the presence of heat and an acid catalyst.