Chemical A and Chemical B react in an exothemic reaction. What can be known about what will happen when chemical A and chemical B are mixed together?

A solid object has a mass of 30 grams and a volume of 10 cm3. Which is the density of the object?

What elements are required for a fire to happen?

Bromination of (Z) ?3? hexene yields racemic 3,4? dibromohexane. Provide a detailed mechanism for formation of the (3S, 4S) ? enantiomer, specifically showing Br2 addition occurring from the top face of the alkene.

Which best explains why elements with a completely full outer shell of electrons do not usually bond with other elements to form compounds? A. A full outer shell of electrons indicates a stable state, making the formation of compounds unnecessary.

Why is current more dangerous than voltage?

Write the formula of each compound, and determine its molecular (formula) mass: (a) sodium dichromate; (b) ammonium Perchlorate; (c) magnesium nitrite trihydrate.

Calculate the pH of a (0.000765) M solution of KOH

What kind of solid is crystalline boron

Cl2F2 (g) + 2NaCl (aq) = 2NaF (aq) + Cl2 (g)

Is there more than100 elements in the periodic table?