Chemistry Post Test Review part 1

Front

What is a property of metals?

Back

Malleable (can be hammered)

Front

How many moles are in 5 grams of CO2? (C=12, O=16)

Back

0.11 mol

Front

What happens when copper is placed in iron(II) sulfate solution?

Back

No reaction takes place.

Front

What is the molar ratio in the reaction: ___ Al + ___ Cl2 --> ___ AlCl3?

Back

2:3:2

Front

Which element has the greatest electron affinity?

Back

Fluorine

Front

Define malleability in metals.

Back

Malleability is the ability of a metal to be hammered or rolled into thin sheets.

Front

What is the formula to calculate moles from grams?

Back

Moles = Mass (g) / Molar Mass (g/mol)

Front

Explain the reactivity series of metals.

Back

The reactivity series ranks metals from most reactive to least reactive, influencing their ability to displace other metals in reactions.

Front

What is electron affinity?

Back

Electron affinity is the amount of energy released when an electron is added to a neutral atom.

Front

What is the significance of the molar ratio in chemical reactions?

Back

The molar ratio indicates the proportions of reactants and products involved in a chemical reaction.