Answer:
1.127,56,000m
2. 347,600,000
3. 384,000
4. 200000000
5. 16,000,000cm
6. 36,000,000cm
7. 125,000m long, 400m deep, 1,500m wide
8. 11.18km/sec
9. 5,400,000
10. 2g
11. 1,200 mg to 2700 mg
12. 158000 kg
13. 450000000 mg
14. 23,000g to 90,000g
15. 40,000 ML
16. 1,000 ML
17. 26,600 KL
18. 1,558,000 L
19. 60 ML
20. 0.947
Answer:
Explanation:
Using the first law of thermodynamics:
Where is the change in the internal energy of the system, in this case , is the heat tranferred, and is the work, with a negative sign since the work is done by the system.
From the previous equation we solve for heat, because it is the unknown variable in this problem
And replacing the known values:
The negative sign shows us that the heat is tranferred from the system into the surroundings.
The safety contract will include basic lab safety guidelines such as:
- Remove all flammable materials from the work station.
- Avoid leaving the heating set-up unattended.
- Fold long sleeves, tie back long hair, remove all accessories that may catch on fire.
- Wear proper lab attire.
- Avoid horse-playing in the lab.
- Report any injuries to the teacher, no matter how minor, as soon as possible.
- Avoid working alone inside the lab.
- Make sure you are aware of the location of the safety equipment and features of the lab especially the first aid kit, fire exit, fire blanket, and fire extinguisher.
- Follow instructions carefully.
- Dispose materials properly.
- Report any faulty equipment as soon as possible.
- Avoid touching hot surfaces with bare hands.
- Wash all used glassware.
- Keep workstation clean and tidy to avoid accidents.
- Avoid eating and drinking inside the lab.
- Put away unnecessary things. Only materials needed for the investigation must be on the workstation.
Further Explanation:
In his safety contract, Chris will find statements that has him agreeing that he will behave appropriately inside the lab especially since they will be working with an open fire (Bunsen burner) or a heating equipment (hot plate) to change the temperature of the water. Proper behavior and basic expectation inside a lab are in the items listed above.
Learn More
- Learn more about lab safety brainly.com/question/770656
- Learn more about fire blanket brainly.com/question/8168740
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Keywords: lab safety, lab contract
Answer:
B 4.18J\g degree C is the specific heat of water