Ask question

Ask question

All categories

2 years ago

11

Tendency of some minerals to break along a smooth flat surface

1 answer:

shepuryov [24]2 years ago

7 0

Answer:

Cleavage

Explanation:

Cleavage is the tendency of a mineral to break along flat planar surfaces. They and are caused by the alignment of weaker bonds between atoms in the crystal structure. Cleavage planes are distinguished from fracture by being smooth, often with reflective surfaces.

You might be interested in

The distance between two successive peaks is called

Nata [24]

Wavelength-
the distance between two successive peaks on adjacent waves is its..

7 0

2 years ago

100 points plus i'll mark brainliest

sdas [7]

I think the answer is 98 grams

5 0

3 years ago

Mass=35g, density=5g/cm3. what is the volume?

nevsk [136]

Answer:

7 cm^3

Explanation:

Density = Mass/Volume

5 = 35/x

multiply both sides by x to get

5x = 35

then divide by 5

so x = 7 cm^3

8 0

2 years ago

Will give brainliest

zhenek [66]

Answer:

D For Doras Demolishing Dub Dune Is Dungenes

8 0

3 years ago

The molar absorptivity of a tyrosine residue at 280 nm is 2000 M-1cm-1, while for tryptophan it is 5500 M-1cm-1. A protein has b

adelina 88 [10]

Answer:

There are 4 tryptophans in the protein.

Explanation:

According to question, protein contains one tyrosine residue and say x number of tryptophans.

Concentration of protein solution = 1.0 micromolar = $1.0\times 10^{-6} Molar$

Molar absorptivity of a protein solution : $\epsilon$

$\epsilon = \epsilon _{tyro}+\epsilon _{tryp}$

$=1\times 2000 M^{-1}cm^{-1}+x\times 5500 M^{-1}cm^{-1}$

Length of the cuvette = l = 1.0 cm

Absorbance of protein solution at 280 nm = A = 0.024

$A=\epsilon \times l\times c$ ( Beer-Lambert's law)

$0.024=(1\times 2000 M^{-1}cm^{-1}+x\times 5500 M^{-1}cm^{-1})\times 1 cm\times 1.0\times 10^{-6} M$

Solving for x :

x = 4

There are 4 tryptophans in the protein.

7 0

3 years ago