Match up the examples/ definitions to the correct word

Sharing electrons but not equally causing 1 end of the molecule to be positive and the other end to be negative

Striking a match on sandpaper to cause friction and heat

Cations and Anions separate in solutions

Any chemical reaction where a substance reacts with oxygen to make an oxide and heat Example: 2C2H6+7O2---> 4CO2+6H2O+heat

NaOH+HCI--->NaCI+H2O OR base+acid--->salt+water

Words

1.) Dissociation

2.) Neutralization

3.) Combustion

4.) Activation Energy

5.) Polar Covalent Bond

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

pv=nrt

explanation:

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

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