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klio [65]
4 years ago
6

Material use make car tyres and chewing gum?

Chemistry
1 answer:
Ulleksa [173]4 years ago
3 0

Answer:

Rubber

Rubber

Make me brainlyist

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Which is an example of chemical weathering?
kobusy [5.1K]

Answer:

b. the layer of oxide formed on statues made of metal

Explanation:

Chemical weathering is a process whereby rocks are disintegrated or weathered causing a chemical reaction thereby leading to change in the parent rock constituents .

In chemical weathering a new substance is usually formed after the weathering takes place.

From the question the layer of statue made by metal will likely form oxides of those metals. Example Silver will react with oxygen to form an entirely new substance like silver(i)oxide.

7 0
3 years ago
Which of the following statements is correct?
Vanyuwa [196]
I would say that children need adults to be responsible leaders. For example, my son has a developmental disability which means things must be done just so for him to feel comfortable. Yesterday, we wanted to meet up with my wife who was at the beach. He goes with me on the weekend to help him with his errands etc. So we went to her sports brella but she was swimming. So he wanted to go to the usual place he gets his fish and chips at another nearby place and also where he usually swims. So we left and went to that place. Then my wife called that where were we? So i said we will be back. So finally, once he got his food, I drove us back to meet my wife (instead of having him swim in his usual place). I was I believe using leadership so we could be together as a family and taking the chance that he would be okay with swimming at the other beach, and it worked out. 
3 0
4 years ago
Read 2 more answers
The elemental mass percent composition of ascorbic acid (vitamin C ) is 40.92% C , 4.58% H , and 54.50% O . Determine the empiri
Lady bird [3.3K]

The empirical formula of ascorbic acid is C6H8O6.

<h3>Empirical formula</h3>

To calculate the empirical mass of a compound from the mass percentage of each element, the value of the<u> molar mass </u>of each element is used, which in this case corresponds to:

                                              MM_C= 12g/mol\\MM_H=1g/mol\\MM_O=16g/mol

From this, we consider that the compound has 100 grams, so the number of moles of each element will be equal to:

                                                   C = \frac{40.92}{12} = 3.41 \\H = \frac{4.58}{1}=4.58\\ O =\frac{54.50}{16}=3.41

Now, divide all the values ​​found by the <u>smallest value</u>, to find the amount present in each element:

                                            C = \frac{3.41}{3.41} = 1\\ H =  \frac{4.58}{3.41} = 1.34\\O =  \frac{3.41}{3.41} = 1

As you can see, the value of moles of hydrogen resulted in a decimal number, so it is necessary to multiply all values ​​​​by a number in common until the three meet as integers:

                                          C = 1 \times 6 = 6\\H = 1.34 \times 6 = 8\\O = 6 \times 6 = 6

So, the empirical formula of ascorbic acid is C6H8O6.

Learn more about empirical and molecular formula in: brainly.com/question/11588623

7 0
3 years ago
1. What is oxidation? * O a. it is loss of electrons O b. it is gain of electrons O c. it is loss of protons O d. none of the ab
Lemur [1.5K]

Answer:

yes

Explanation:

who wants free points

7 0
3 years ago
What is the mole ratio of SnF2 to HF
S_A_V [24]

Answer:

Answer:

12. 5

11.

10

10

15. 7

14. 11

2

=

16

16

18. 3

+

11

17

3

4

co

loo

8

Step-by-step explanation:

12. 5

11.

10

10

15. 7

14. 11

4 0
3 years ago
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