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TEA [102]
3 years ago
5

What happens if you organize the elements by atomic weight

Chemistry
1 answer:
Vlad1618 [11]3 years ago
4 0
<span>So atomic mass is not a natural way to order a periodic table, since periodic tables were (and are) principally aimed at capturing the chemical relationships between elements.</span>
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NEED HELP ON 17,18,19,20,21,22,23. ONLY IF YOU ARE POSITIVE ABOUT THE ANSWER!!!!
Alex777 [14]

Answer:

17. D. Chemical change

18. C. Cell wall

19. D. To transfer matter and energy within and between organisms.

20. A. Transporting materials

21. C. Carbon dioxide

22. A. Cellular respiration

23. C. Produce food and give off oxygen

Explanation:

I have been able to supply the correct answers. The cell wall functions as a structure that provides structural support and protection to the cell. It is tough, flexible and at times rigid. In a chemical change, new materials with new properties are manufactured. So, the process of photosynthesis is a chemical change.

The endoplasmic reticulum actually transports material. It transports materials like protein and lipids made within the cell and sends it to where they are needed.

Carbon dioxide  is the the gas that animals give off and plants use it during photosynthesis. Cellular respiration involves the activities that result to the breaking down of food in order to release energy.

8 0
3 years ago
In a chemical reaction*
Bess [88]

Answer:

1st one is correct

<em> </em><em> </em><em>The </em><em>atom </em><em>of</em><em> the</em><em> </em><em>reactants</em><em> </em><em>unbo</em><em>u</em><em>nd </em><em>,</em><em> </em><em>rearrange</em><em>,</em><em> </em><em>and </em><em>then</em><em> </em><em>rebond </em><em>to </em><em>form </em><em>the</em><em> </em><em>product</em>

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4 0
3 years ago
172 °C = __________ K<br> (Round off to the nearest whole number)
NNADVOKAT [17]
-101, K=C+273 so in this you would subtract 273 from 172
8 0
3 years ago
The density of mercury is 13.6 g/mL what is the density in lbs/L ( 1 lb hint =0.454 kg )
Vesna [10]

Answer:

30.0\frac{lb}{L}

Explanation:

Hello,

In this case, since 454 g are equivalent to 1 pound and 1000 millilitres are equivalent to 1 liter, the required density is computed below by applying the corresponding conversion factor:

=13.6\frac{g}{mL} *\frac{1lb}{454g} *\frac{1000mL}{1L} \\\\=30.0\frac{lb}{L}

Regards.

6 0
4 years ago
Gloria is making a model of an atom. She uses three different colors to represent the three basic particles that make up the ato
xz_007 [3.2K]

Answer:

protons and neutrons

Explanation:

The nucleus of the atom contains protons and neutrons. The electrons of the atom orbit the nucleus.

8 0
3 years ago
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