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Tanya [424]
3 years ago
9

Yes thank you I love and appreciate this so much woooo

Chemistry
2 answers:
sashaice [31]3 years ago
8 0

Answer:

Explanation:

sedrftgyhutrfdcfgvbhytrfdcxf vgftcdxvgytfdrcf vbhgfc vgtfrdxvgfcdxc vgfcdxcvgfcf vfcdcx vgfcvgvfcvgfdcf vbgfccv bgf thanks

Natali5045456 [20]3 years ago
4 0
Thank you for the points

Hope you have a great day/night
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Any two metal which are not ductile are iron and zinc ..

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Calculate the number of moles of KOH in 6.70 mL of a 0.480 M KOH solution. (Enter your answer in scientific notation.)
andrew-mc [135]

Answer:

3.2×10^-3 mol

Explanation:

The equation for molarity is M= n/L. Where "M" is Molarity, "n" is the number of moles of solute, and "L" is the total liters in solution.

The question gives you the volume in mL, so to convert "mL" to "L" you need to divide by 1000. (6.70mL/ 1000L)= 0.0067L.

Now you can plug the numbers into the equation. 0.480M= n/ 0.0067L), multiply (0.480M×0.0067L)= 0.003216 mol. The scientific notation is 3.2×10^-3, 10^-3 because you move the decimal back three times and 3.2 because there are 2 sig figs.

5 0
3 years ago
the existence of a vacancy in a crystal decreases the energy of the material i. not enough information to determine ii. false ii
enot [183]

iii. True. The existence of a vacancy in a crystal decreases the energy of the material.

One of the scientific disciplines called crystallography examines how the atoms in a solid crystal are arranged. When molecules are linked together in a regular way, these crystals are created.

The mechanical, physical, and optical properties of a material can alter when crystal flaws are present. The strength of the material can be impacted by a flaw.

An irregularity in the atoms' regular geometrical arrangement within a crystalline material is referred to as a crystal defect. These flaws are caused by the solid being deformed, cooling quickly from a high temperature, or being exposed to high-energy radiation (such as X-rays or neutrons). because the vacancy cause defects and the crystal structure is disturbed this causes a decrease in energy.

To know more about vacancy visit the link:

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#SPJ4

6 0
1 year ago
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