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Biblioteka

IS1 Final Semester 2

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Pitanje 1
1.

Match the item to the correct category of a physical change or chemical reaction.

  • Adding blue food coloring to water and it turning blue.

  • Salt dissolving in water.

  • A bicycle chain rusting.

  • Mixing Ba(OH)2 and NH4Cl and an unexpected odor occurring.

  • physical change

  • chemical change/reaction

Pitanje 2
2.

Which of the following images best represents a solid?

Pitanje 3
3.

Determine the change in temperature:

Ms. Ackerman places 12 grams of sodium chloride into 30 mL of water at 27 degrees Celsius. After 30 seconds the temperature of the water is now 18 degrees Celsius.

Change in temperature = final temp - initial temp

Pitanje 4
4.

How many oxygen (O) atoms are represented in the following chemical formula?

Pitanje 5
5.

The following equation is unbalanced:

Which of the following reaction equations is properly balanced?

Pitanje 6
6.

The following reaction is unbalanced: Balance the reaction and then draw a model of the reaction. Be sure to include a key in your model:

Pitanje 7
7.

Which of the following best describes an endothermic reaction?

Pitanje 8
8.

Which of the following best describes an exothermic reaction?

Pitanje 9
9.

This is a reaction coordinate diagram for a chemical reaction. What kind of reaction is represented by this diagram?

Pitanje 10
10.

When you get a muscle or joint injury, often you will place an ice pack on the injury. Ice packs work by mixing two room temperature substances in a bag. When those substances mix, they produce a cold temperature.

Is this an endothermic or an exothermic reaction? Explain your answer.

Be sure to include the definition of an endothermic or exothermic reaction in your answer

Pitanje 11
11.

Using the blank diagram, draw a reaction coordinate diagram for an endothermic reaction.

Label the start or the reaction, end of the reaction, and the point where maximum potential energy is reached.

Pitanje 12
12.

In an exothermic reaction, the temperature of the system will...

Pitanje 13
13.

Determine the enthalpy change of the following reaction

Pitanje 14
14.

Determine the enthalpy change of the following reaction. Then, state whether the reaction is exothermic or endothermic.

Pitanje 15
15.

Which of the following statements best describes weather?

Pitanje 16
16.

Which of the following statements best describes climate?

Pitanje 17
17.

Which of the folowing are factors that can affect the climate? (pick 3)

Pitanje 18
18.

Fill in the blanks by placing the vocab words where they occur in the water cycle.

Drugi mogući odgovor:
Evaporation
Condensation
Runoff
Precipitation
Infiltration
Groundwater
Pitanje 19
19.

What percentage of the Earth's water is freshwater?

Pitanje 20
20.

Pick three words below that are associated with the cryosphere.

Pitanje 21
21.

Pick five words associated with the geosphere.

Pitanje 22
22.

Fill in the blanks by placing the proper vocab words in the blanks where they occur in the carbon cycle.

Drugi mogući odgovor:
Combustion
Decomposition
Fossil fuels
Photosynthesis
Respiration
Pitanje 23
23.

Which of the following are greenhouse gases? Choose all that apply.

Pitanje 24
24.

What are the products of photosynthesis?

Pitanje 25
25.

What is the product of respiration?

Pitanje 26
26.

Which of earth's layers has the ozone layer in it?

Pitanje 27
27.
Pitanje 28
28.

If you lived in New Orleans, Louisiana, what is one thing you would do to mitigate for climate change and one thing you would do to adapt to climate change.

Pitanje 29
29.

The dead zone in the Gulf of Mexico is caused by:

Pitanje 30
30.

How do we contribute to the existence and size of the dead zone?

Pitanje 31
31.

Drag words from the word bank below the image into the appropriate location in the Nitrogen Cycle.

Drugi mogući odgovor:
N-fixing
decomposing
Ammonia (NH3)
denitrifying
Nitrate (NO3)
atomospheric nitrogen (N2)