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mel-nik [20]
3 years ago
13

 

Chemistry
1 answer:
Olin [163]3 years ago
3 0

1. C. Linus Pauling

2. C. chemistry

3. A. atom

4. D. protons, neutrons and electrons

5. B. positively

6. A. negatively

7. C. uncharged

8. D. carries a charge

9. C. Au

10. D. protons in the nucleus

11. A. atoms

12. B. the pull of gravity on matter

13. C. protons

14. C. 112

15. C. symbols

16. D. compounds

17. C. sodium chloride salt

18. C. solids, liquids, and gases

19. A. the gaseous state

20. C. a number and a unit

21. B. the weight of an object

22. D. 1,000

23. C. 100

24. B. uncertain

25. D. 4

26. A. 1

27.C. 2.26 x 102

28. C. 5 x 10-3

29. C. atomic number

30. A. 5 g/cm3

31. D. temperature

32. C. meter

33. B. 2.2

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Click on the button to activate the drawing utility. draw another constitutional isomer with the molecular formula c5h10o that i
Advocard [28]
This problem is actually easy to solve. You can just search this as what I have done. The isomers of C₅H₁₀O are shown in the attached picture. They are called isomers because they have the same chemical formula, but different in their structural formula. The isomers can be grouped as ketone or aldehyde. Those ending in -one are ketone which has a formula of RC=OR, where R is a hydrocarbon chain. Those ending in -al are aldehydes which has a formula of RC=OH.

7 0
3 years ago
There pls help it’s due in 5 minutes!! Thanks if you do!
sergey [27]

Explanation:

well when you heat ice the individual molecules gain kinetic energy. but until the temperature reaches it's melting point they don't have the energy to break bonds and hold their crystal structure. So, the temperature remains constant until the ice has melted. Hope this helped. Good luck on your project!

7 0
3 years ago
How do I do this whole problem?
KatRina [158]

The solubility of a substance in water is dependent on the temperature. Thus for

1 & 2: Temperature is the independent variable (the one that changes in the first place) and Solubility is a dependent variable (a variable that changes in response to changes in the independent variable.)

The graph: by convention you shall label the horizontal axis with the independent variable and the vertical axis with the dependent variable. For clarity's sake you shall use the finest scale possible that accommodates for all data provided for both axis. Plot the data points on the graph as if they are points on a cartesian plane.

My teacher made no detailed requirements on the phrasing on titles of solubility curve plots; however, like most other graphs in chemistry, the title shall specify the name of variables presented in this visualization. For instance, "the solubility of KClO_3 under different temperatures" might do. You shall refer to your textbooks for such convention.

It is necessary to interpolate to find the solubility at a temperature not given in the table. Start by connecting all given data points with a smooth line; find the vertical line corresponding to temperature = 75 degree Celsius and determine the solubility at the intersection of the vertical line and the trend line. That point shall approximates the solubility of the salt at that temperature.

4 0
3 years ago
Calculate the mass of H2OH2O produced by metabolism of 1.6 kgkg of fat, assuming the fat consists entirely of tristearin (C57H11
kakasveta [241]

Answer: 1779.8g of H2O

Explanation:

C57H110O6 + O2 —> CO2 + H20

To calculate the amount of water(H2O) produced by the reaction of 1.6Kg tristearin(C57H110O6) and O2, we must first balance the equation.

To do so, add 2 in front of C57H110O6, 163 in front of O2, 114 in front of CO2 and 110 in front of H2O i.e

2C57H110O6 + 163O2 —> 114CO2 + 110H20

Next, we have to calculate the mass of tristearin(C57H110O6) that reacted and the mass of water produced from the balanced equation. This can be done by:

MM of C57H110O6 = (57x12) + (110x1) + (6x16) = 684 + 110 + 96 = 890g/mol

Mass conc of C57H110O6 = 890 x 2 = 1780g

MM of H2O = (2x1) + 16 = 18g/mol

Mass conc of H2O = 110 x 18 = 1980g

Next, we will find the amount of water produced by 1.6Kg(i.e 1600g) of tristearin(C57H110O6). This is done by:

From the equation,

1780g of C57H110O6 produced 1980g of H2O.

Therefore 1600g of C57H110O6 will produce = (1600x1980)/1780 = 1779.8g of H2O

5 0
3 years ago
Independent, dependent, and controlled variable?
Arlecino [84]
I would personally say a Controlled Variable because you are purposefully not spraying the other arm.
3 0
3 years ago
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