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Rama09 [41]
3 years ago
8

What are the four protein structures?

Chemistry
1 answer:
daser333 [38]3 years ago
4 0
Hello there.

<span>What are the four protein structures?
</span>
<span>Primary structure 

</span><span>Tertiary structure

</span><span>Quaternary structure

</span>Secondary structure
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The bond dissociation energy to break 4 bond(s) in 1 mole of CH₄ molecules is:_____ **Any help would be greatly appreciated!**
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Answer:

The bond dissociation energy to break 4 bonds in 1 mol of CH is 1644 kJ

Explanation:

Since there are 4 C-H bonds in CH₄, the bond dissociation energy of 1 mol of CH₄ is 4 × bond dissociation energy of one C-H bond.

From the table one mole is C-H bond requires 411 kJ, that is 411 kJ/mol. Therefore, 4 C-H bonds would require 4 × 411 kJ = 1644 kJ

So, the bond dissociation energy to break 4 bonds in 1 mol of CH₄ is 1644 kJ

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3 years ago
Which one of the following is not responsible
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When an atom is in the ground state what must happen for the atom to be in an excited state? what must happen for this atom to r
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In order for an electron to jump into a higher energy state, it must first absorb energy (heat, light, etc).

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4 0
3 years ago
A silver cube with an edge length of 2.42 cm and a gold cube with an edge length of 2.75 cm are both heated to 85.4 ∘C and place
kakasveta [241]

Answer:

Explanation:

Volume of silver cube = 2.42³ = 14.17 cm³

mass of silver cube = volume x density

= 14.17 x 10.49 = 148.64 gm

Volume of gold cube = 2.75³ = 20.8  cm³

mass of gold cube =  20.8 x 19.3 = 401.44 gm

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mass of 112 mL water = 112 g

Heat absorbed = heat lost = mass x specific heat x temperature fall or rise

Heat lost by metals

= 148.64 x .24 x ( 85.4 -T) + 401.44 x .129 x ( 85.4 - T )

= (35.67 + 51.78 ) x ( 85.4 - T )

87.45 x ( 85.4 - T )

= 7468.23 - 87.45 T

Heat gained by water

= 112 x 1 x ( T - 20.5 )

= 112 T - 2296

Heat lost = heat gained

7468.23 - 87.45 T = 112 T - 2296

199.45 T = 9764.23

T = 48.95° C

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3 years ago
A sample of marble has a volume of 6 cm3 and a density of 2.76 g/cm3. What is its mass?
zhuklara [117]

Answer:

16.56g

Explanation:

6*2.76=16.56...

6 0
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