True or False, the number of bondingvpairs in a molecule is equal to the number of electrons.

Why is helium trapped in the earth's crust? If it's its trapped in the earth's crust how does it get into the air that we breathe?

What is the empirical formula of a compound containing 90 grams carbon, 11 grams hydrogen, and 35 grams nitrogen? C3H4N C2H4N C4H10N C2H5N

Which is an example of making a qualitative observation?1measuring the speed of the chemical reaction2describing how copper changes color in chlorine3recording how long it takes to burn magnesium4showing the results of an experiment with a graph

Rewrite each equation below with the delta H value included with either the reactants or the products and identify the reaction as endothermic or exothermic. A) H2 (g) + O2 (g) - > H2O (l); DeltaH^0 = - 285.

Atoms with an electric charge come charged by gaining or losing

What would happen if the proteins that support a DNA molecule failed to function

Why does paraffin wax sink in alcohol?

Copper, silver, and gold are transition metals that fall into the same group on the periodic table. From the following list, identify those metals that cannot be oxidized by cations of all three of these metals from group 11.

Hola alguien me dise El numero de la ballena azul es que quierobhacerle bromas si alguien lo sabe digabmelo los espero

What is the two significant figure of 11.76 cm^2? Rounded Answer