Which scientists developed a model of the atom that looked like a nucleus surrounded by electrons

The net ionic equation, H3PO4 (aq) + 3 OH - (aq) Imported Asset PO4-3 (aq) + 3 H2O (l), best represents which type of acid-base reaction? strong acid-strong base weak acid-strong base strong acid-weak base weak acid-weak base

Determine the value for the following reaction. 2HI (g) + 2.4 kcal → H2 (g) + l2 (g) ΔH =

Not including the noble gases, which area of the periodic table has the highest electronegativities? a. upper right b. lower right c. upper left d. lower left

What specifically does STR measure? A) STR length B) the number of repeating units C) distance traveled on electrophoresis gel D) the difference between the number of repeating units between two STRs

Where does the water come from in a neutralization reaction

If a balloon is heated, what happens to the pressure of the air inside the balloon if the volume remains constant? It increases. It stays the same. It decreases.

If heat is released by a chemical system, an equal amount of heat will be a) absorbed by the surroundings b) released by the surrounding c) absorbed by the universe d) released by the universe

Find the molality of the solution if 25.0 g of methyl alcohol (CH3OH) are dissolved in 300 g of water.

Key words why a rusty nail is chemical

How many carbons would the following molecules contain? A) A straight chain Alkene with 14 carbons and 3 double bonds B) A straight chain Alkyne with 9 carbons and 2 triple bonds