How much salt is required to make 250g of a 5.0% saline solution?

Which condition is most responsible for causing wind? A. rotation of the earth B. polar cooling C. uneven heating of the earth by the sun D. Coriolis effect

Whos good at criss-cross method for polyatomic ions?

At 73.0 ∘c, what is the maximum value of the reaction quotient, q, needed to produce a non-negative e value for the reaction so42 - (aq) + 4h + (aq) + 2br - (aq) ⇌br2 (aq) + so2 (g) + 2h2o (l) in other words, what is q when e=0 at this temperature?

Explain what it means to say "Nothing in nature happens in isolation".

What does the enthalpy of reaction measure? O A. The amount of energy required to raise the temperature of a substance O B. The amount of energy required to make a chemical reaction happen O c.

Iron has a density of 7.86 g/cm3. calculate the volume (in dl) of a piece of iron having a mass of 4.15 kg.

Draw the condensed structural formula for the ammonium salt formed when lidocaine reacts with hcl.

Where might you find a temperature of 2 kelvin? a. north poleb. the equatorc. earth's cored. the coldest regions of outer space

A blank is a coil of wire that produces a magnetic field when it carries an electric current

What is the change in heat energy when 132g of copper at 32.2°C is raised to 45.0oC? The specific heat of copper is 0.385 J/g °C.