How many covalent bonds can Carbon, Hydrogen, Nitrogen, Or Oxygen form?

Which pack has the greatest change in enthalpy, warm packs (such as hand warmers) or cold packs (such as an ice pack) ?

Equations for which kinds of reactions are best balanced by the half-reaction method?

Whatvis thr atomic number of a sodium atom that has 11 protons and 12 neutrons?

As you go down the periodic table, the atomic radius of elements do what?

Choose the best answer to each question. Which has the most kinetic energy? a bowling ball with a velocity of 1.5 m/s Or a golf ball with a velocity of 0.5 m/s

Magnesium ribbon burns in air with a bright white flame. The product of the reaction is magnesium oxide. Describe the appearance of magnesium oxide?

How many moles of CO will be produced, if 32.5grams of H2O are produced? C6H6S+6O2=>6CO+3H2O+SO3

The noble gases are a group of chemical elements with very similar properties. A unique feature of this group of elements is that they are known to be very inert or unreactive with other chemicals.

Does Silicon-32 has a half-life of 170 years and can be used to find the age of rocks it is contained in.

What tool would you use to compare the mass of two objects