CHEMISTRY HIGH SCHOOL

Which of the following quantities is the largest?0.00001101 kg
0.001011 g
0.000001101 kg
0.0001011 g

Answers

Answer 1
Answer:

For this case, the first thing we are going to do is convert all the numbers to the same unit.

For this, we use the following conversion:

1 Kg = 1000 g

We then have the following numbers:

1) 0.00001101 kg = (0.00001101) * (1000) = 0.01101 g

2) 0.001011 g

3) 0.000001101 kg = (0.000001101) * (1000) = 0.001101 g

3) 0.0001011 g

Therefore, the largest amount in grams is:

0.01101 g

Answer:

0.00001101 kg = 0.01101 g

option 1
Answer 2
Answer: A is the Largest I believe

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Explain the valence differences etc between the two polyatomic ions: nitrate and nitrite.

Answers

Both Nitrates and Nitrites are inorganic chemical compounds, and as the names imply, the characteristic element in them is ‘N’ or Nitrogen, which has an atomic number of 7. Nitrogen is an odourless diatomic gas in nature and is reactive. The element Nitrogen is also highly electro-negative. And both Nitrates and Nitrites are two important classes of Nitrogen-containing compounds. The main difference between Nitrate and Nitrite is that Nitrate group contains one Nitrogen atom and three Oxygen atoms whereas Nitrite group contains one Nitrogen atom and two Oxyg
Both Nitrates and Nitrites are inorganic chemical compounds, and as the names imply, the characteristic element in them is ‘N’ or Nitrogen, which has an atomic number of 7.

Hope this helps.

Sort the following situations into chemical change or physical change:1. salt dissolves in water
2. Hydrochloric acid reacts with magnesium to produce hydrogen gas
3. a piece of copper is cut in half
4. a sugar cube is ground up
5. water is heated and changed to steam
6. iron rusts
7. ethyl alcohol evaporates
8. ice melts
9. milk sours
10. sugar dissolves in water
11. sodium and potassium react violently with water
12. pancakes cook on a griddle
13. grass grows on a lawn
14. a tire is inflated with air
15. food is digested in the stomach
16. water is absorbed by a paper towel
17. ethyl alcohol boils at 79 egress Celsius
18. paper burns
19. water freezes at 0 degrees Celsius
20. fireworks explode
21. alka-seltzer gives off carbon dioxide when added to water
22. clouds form in the sky

Answers

Chemical
2. Hydrochloric acid reacts with magnesium to produce hydrogen gas
5. water is heated and changed to steam
6. iron rusts
9. milk sours
7. ethyl alcohol evaporates
11. sodium and potassium react violently with water
12. pancakes cook on a griddle
15. food is digested in the stomach
17. ethyl alcohol boils at 79 egress Celsius
18. paper burns
20. fireworks explode
21. alka-seltzer gives off carbon dioxide when added to water
22. clouds form in the sky

Physical
19. water freezes at 0 degrees Celsius
16. water is absorbed by a paper towel
14. a tire is inflated with air 
13. grass grows on a lawn
1. salt dissolves in water
3. a piece of copper is cut in half
4. a sugar cube is ground up
8. ice melts
10. sugar dissolves in water

In the Bronsted-Lowery definition, an an acid is a substance that.. a. donates protones b. accepts protones c. neutralizes hydronium ions d. forms a salt

Answers

Answer:

A

Explanation:

acids have weak bonds between hydrogen atoms and (usually) oxygen, which results in its ability to donate the protone

A speed boat is traveling at 100km/hr. How many hours will it take for the boat to cover a distance of 115km?

Answers

ans) 115/100=1.15 hours

What element is added to toothpaste and city water systems to help tooth decay?

Answers

Answer is Fluorine.
Hope it helps and pls mark as the best answer. :-)

If x is 5, then 6x = ___.
30
30x
5x

Answers

If X is 5, then 6X is equal to 30. You can see to be able to get 30, you have to multiply 6 to X, which in this case is 5. So 6 times 5, you will now get the answer which is 30. In cases that X have other values, you just have to multiply it with 6 to get the answer. This problem can not have 30x or 5x as the results. As the value of X is already given, then, you will get the answer specifically.

The answer is 30, A :)
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