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3 years ago

10

A detrital rock is named according to ____.

1 answer:

netineya [11]3 years ago

5 0

I believe the answer is D.

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Why does increasing the temperature of two reactants in solution make a

gogolik [260]

The two molecules will only react if they have enough energy. By heating the mixture, you are raising the energy levels of the molecules involved in the reaction. Increasing temperature also means the molecules are moving around faster and will therefore "bump" into each other more often.

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3 years ago

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Which carbon compound is soft, slippery, a decent electricity conductor, and bonded in a way that forms planes?

Mashcka [7]

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3 years ago

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Dimensional Analysis need help solving... Hand write and post image if possible... (both Chem. and Physics) PLS SHOW WORK!

beks73 [17]

Answer:

0.804mph, 9.1lbs/gal

Explanation:

hope this helps

8 0

3 years ago

What is the approximate energy of a photon having a frequency of 4 x 10^7 Hz? (h = 6.6 x 10^-34 J . s)

BigorU [14]

Answer:

2.64 × $10^{-26}$ J

Explanation:

I think you should mark it a physics question instead but anyway.

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The Planck equation should be applied:

E = hv , while E is energy of proton; h is Planck constant; and v is frequency.

E = 6.6 × $10^{-34}$ × 4 × $10^{7}$

= 6.6 × 4 × $10^{-27}$

= 2.64 × $10^{-26}$ J

3 0

3 years ago

Joan needs a 0.053-M solution of HCl, but only has access to 2.12-M HCl, a 10-mL graduated pipet, and a 25-mL volumetric flask.

dmitriy555 [2]

Answer:

Joan should measure 0.625 mL of 2,12 M HCl solution to create her desired solution.

Explanation:

Molarity of HCl Joan has access to = $M_1=2.12 M$

Volume of 2.12 M of HCl Joan use = $V_1=?$

Molarity of HCl Joan desired = $M_2=0.053 M$

Volume of 0.053 M of HCl Joan can prepare = $V_2=25 mL$

$M_1V_1=M_2V_2$

$V_1=\frac{M_2V_2}{M_1}$

$=\frac{0.053 M\times 25 mL}{2.12 M}=0.625 mL$

Joan should measure 0.625 mL of 2,12 M HCl solution to create her desired solution.

6 0

3 years ago