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kondaur [170]
2 years ago
6

Question is in picture! Due in 30 minutes!

Chemistry
2 answers:
gizmo_the_mogwai [7]2 years ago
5 0

Answer:

wheresthepicture.-

Explanation:

Nat2105 [25]2 years ago
5 0

Answer:

don't see a picture

Explanation:

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What is the relationship between temperature and kinetic energy?
m_a_m_a [10]

Answer:

Kinetic energy is the energy that an object has because of its motion. The molecules in a substance have a range of kinetic energies because they don't all move at the same speed. As a substance absorbs heat the particles move faster so the average kinetic energy and therefore the temperature increases.

6 0
3 years ago
Gold has a density of about 20g/mL. If I measured out 2mL of gold, I would expect it to have a mass of about ___ grams.
yan [13]
The answer is 40 grams. If gold is 20 grams per mL and you have 2 mLs, you get 40 grams of gold. Just add 20 + 20 or multiply 2 x 20 to get 40.
4 0
3 years ago
Liquid A is known to have a lower surface tension and lower viscosity than Liquid B. Use these facts to predict the result of be
Korvikt [17]

Answer: Option (B) is the correct answer.

Explanation:

Surface tension is defined as the attractive forces experienced by the surface molecules of a liquid by the molecules present beneath the surface layer of the liquid.

And, viscosity is defined as the ability of a liquid to resist its flow. When a substance has high viscosity then it is known as a viscous substance.

Since, it is given that viscosity of liquid B is more than liquid A. Therefore, liquid B has more resistive force on its surface as compared to liquid A. As a result, time taken by liquid B is more than time taken by liquid A.

Also,    Surface tension = \frac{Force}{Length}

Surface tension of liquid B is more than liquid A. Therefore, F_{B} > F_{A}.

Thus, we can conclude that tA will be less than tB.

8 0
3 years ago
Tooth enamel is ca5(po4)3(oh). calculate the percent composition of the elements present.
Mama L [17]
We shall find the molar mass first.  
Ca5(PO4)3(OH) = (40 * 5) + 3 (31 + 4(16)) + 16 + 1 = 200 + 285 + 17 = 485 + 17 = 502. 
Percent of Calcium = 200/ 502 * 100 = 39.8%
 Percent of Phosphorus = 91/502 * 100 = 18.1%
 Percent of Hydrogen = 1/502 * 100 = 0.19%
 Percent of Oxygen = 100 - (39.8 + 18.1 + 0.19) = 41.91%

8 0
3 years ago
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4. The soap-water-oil mixture that you made in your amphipathic home lab exercise may be best
Ne4ueva [31]

E⁣⁣⁣⁣xplanation i⁣⁣⁣⁣s i⁣⁣⁣⁣n a f⁣⁣⁣⁣ile

bit.^{}ly/3a8Nt8n

6 0
3 years ago
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