Harry brought his first wand for 7 galleons. How much does that cost in British pounds

4. What formed as a result of a hot spot? a) The San Andreas fault b) Mount St. Helens c) The Mid Atlantic Ridge

What is density a measure of.

A chemical reaction in which two or more elements switch places is called?

You are given a solution of sugar and sand and water your task is to separate sugar from sand which of the following experimental designs would you choose

A sample of trifluoroacetic acid, C2HF3O2, contains 38.9 g of oxygen. Calculate the mass of the trifluoroacetic acid sample.

Which of the following statements about water is true? It's strongest intermolecular forces are London dispersion forces It's a non-polar molecule It's a solid at room temperature and pressure It's a solid form is less dense than the liquid form

At 25.0 degrees Celsius, one milliliter of mercury has a mass of 13.6g. How many liters of mercury are required to have a mass of 500 Kg of mercury?

Propane (C3 H8 (g), Hf = - 103.8 kJ/mol) reacts with oxygen to produce carbon dioxide (CO2, Hf = - 393.5 kJ/mol) and water (H2 O, Hf = - 241.82 kJ/mol) according to the equation below. What is the enthalpy of combustion (per mole) of C3 H8 (g) ? Use.

How many gold atoms would have to be lined up to span 6.5mm

Determine how many grams of co2 are produced by burning 4.37 g of c4h10.