Which allotrope of carbon has the shape of a soccer ball?

a. graphite

b. diamond

c. fullerene

d. coal

Perform unit conversions and determine Re for the case when a fluid with density of 92.8 lbm/ft3 and viscosity of 4.1 cP (centipoise) flows with a velocity of 237 ft/min in a pipe with 28 inch diameter. Re = (density*velocity*diameter) / viscosity

Write a balanced chemical equation for the reaction of solid strontium with fluorine gas.

How many neutrons are in radon?

If a 1.85 g mass of zinc produces 475 mL of gas and your balloon weighs 0.587 g and the room temperature is 19.0°C.

How many moles of Vitamin A are there in 0.10 grams

Why does the temperature remain constant during melting till all the ice has melted?

In a certain organic compound, one of the carbon atoms is bonded to four atoms. One of these is a carbon atom, and the other three are hydrogen atoms. What type of bond exists between the two carbon atoms? A. Ionic B. Dispersion force C.

How much hbro must be added to 1l of pure water to make a solution with a ph of 4.25? ka = 2.00 * 10-9?

Water is known as the 'universal solvent' because: Water is capable of dissolving every substance. Water can dissolve many ionic and covalent compounds. Water can dissolve many substances, but often requires large amounts of heat to be added.

Which of the following would be expected to form hydrogen bonds with water? Choose all that apply. (A) methylamine (B) N-methylpropanamide (C) acetaldehyde (D) cyclopentane (E) None of the Above