For each description, decide if it is describing an acid or a base.

Question

Column A
1.
Tastes sour.:
Tastes sour.
2.
Tastes bitter:
Tastes bitter
3.
H2SO4

:
H2SO4

4.
LiOH:
LiOH
5.
pH above 7:
pH above 7
6.
pH below 7:
pH below 7
Column B
a.Acid
b.Base
Question 11
The table shows the times it took different animals to cover various distances.

MOTION OF ANIMALS
Animals Distance (km) Time (h)
Gray fox 73 1.05
Gazelle 68 0.85
Rabbit 70 1.25
Cheetah 85 0.75
Giraffe 60 1.15
Antelope 93 0.95


Which animal's speed is the greatest?

a
gazelle
b
gray fox
c
rabbit
d
cheetah

Answer 1

Acid and Base Descriptions

Column A

1. Tastes sour. : a. Acid
2. Tastes bitter. : b. Base
3. H2SO4 : a. Acid
4. LiOH : b. Base
5. pH above 7 : b. Base
6. pH below 7 : a. Acid

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Animal Speed Calculation

To determine which animal's speed is the greatest, we will calculate the speed of each animal using the formula:

\[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} \]

1. Gray Fox:
   \[ \text{Speed} = \frac{73 \text{ km}}{1.05 \text{ h}} \approx 69.52 \text{ km/h} \]

2. Gazelle:
   \[ \text{Speed} = \frac{68 \text{ km}}{0.85 \text{ h}} \approx 80 \text{ km/h} \]

3. Rabbit:
   \[ \text{Speed} = \frac{70 \text{ km}}{1.25 \text{ h}} = 56 \text{ km/h} \]

4. Cheetah:
   \[ \text{Speed} = \frac{85 \text{ km}}{0.75 \text{ h}} \approx 113.33 \text{ km/h} \]

5. Giraffe:
   \[ \text{Speed} = \frac{60 \text{ km}}{1.15 \text{ h}} \approx 52.17 \text{ km/h} \]

6. Antelope:
   \[ \text{Speed} = \frac{93 \text{ km}}{0.95 \text{ h}} \approx 97.89 \text{ km/h} \]

Summary of Speeds:

• Gray Fox: 69.52 km/h
• Gazelle: 80 km/h
• Rabbit: 56 km/h
• Cheetah: 113.33 km/h
• Giraffe: 52.17 km/h
• Antelope: 97.89 km/h

Conclusion

The animal with the greatest speed is d. Cheetah.