How many valence electrons does magnesium (Mg) have?

(A) 12

(B) 6

(C) 3

(D) 2

If there are 10 moles of Benzene (C6H6) in a 2.5M solution. How many liters is the solution?

A travel mug of 91∘C coffee is left on the roof of a parked car on a cold winter day. The temperature of the coffee after t minutes is given by H=91 (2) - t/14. After how many minutes will the coffee be only lukewarm (30∘C) ?

Is steel wool an element, compound, or mixture

which statement correctly compares the mass of the reactants to the mass of the prodect in this chemical reaction CH4 + 2 O2 CO2+2 H2O A) the mass of the reactiant is one-four the mass of the products B) the mass of the reactants is half the mass of

A gas occupies a volume of 8.60 L at 45C and 764 torr. What pressure would it occupy if the volume is adjusted to 13.3 L at 20C?

Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? A. 2C (s) + H2 (g) →C2H2 (g); ΔG∘f=209.2 kJ/molB. N2 (g) + 3H2 (g) →2NH3 (g); ΔG∘f=-33.30 kJ/molC.

How do I find the molar mass of Copper (II) Nitrate?

Describe several main ideas in chemistry

What is the wavelength of a wave having a frequency of 1.75*10^ 14 s^ - 1?

What alkene (s) would be produced from the dehydration of cyclopentanol?