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serious [3.7K]
3 years ago
6

What is the average speed of a skateboarder who travels 20 km in 2 hours

Chemistry
1 answer:
astra-53 [7]3 years ago
8 0

Answer:

the average speed is 10 km/hr

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W + BgCz2 --&gt; WCz + Bg<br> Balance this equation
yanalaym [24]

Answer: W + BgCz2 arrow WCz + Bg

2 W + BgCz2 arrow  2 WCz + Bg

Explanation:

Cz has 2 so you balcne the other side of WCz.

Since you Balcanes the Cz you changed the W and you Balcanes the other W on the left side.

3 0
3 years ago
Which of the following is a consequence of humans using fossil fuels
marusya05 [52]

Answer:

Explanation:

Following are a few consequences of fossil fuels

1. It causes air pollution.

2. When they are burned, they produce toxic substances which leads to global warming.

3. Waste products are hazardous to public health and environment.

4. They are non - renewable and unsustainable.

5. Drilling fossil fuels is a dangerous process

Hope this helps

plz mark as brainliest!!!!

8 0
3 years ago
A tank contains hermit crabs and frogs. What kinds of animals are inside of the tank? Check all that are true. fish invertebrate
aev [14]

Answer:

Vertebrates, invertebrates, and amphibians.

Explanation:

Vertebrates have backbones. Frogs have back bones.

Invertebrates do not have backbones. Hermit crabs do not have back bones.

Amphibians are cold-blooded vertebrate animals. Frogs are cold-blooded vertebrate animals.

5 0
3 years ago
Lactic acid results from which of the following?
vazorg [7]

Explanation:

Lactic acid is formed during the breakdown of glucose. This is sometimes called "blood sugar."

7 0
3 years ago
Read 2 more answers
. What happens the pH of an acid solution as a base is added?​
Dmitrij [34]

As a base is added to an acidic solution, the H+ ions in solution that make it acidic are slowly neutralized into water (via OH-, the base). As these ions are converted into water the concentration of them decreases, so the pH decreases, as they are directly related.

Hope this helps!

3 0
3 years ago
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