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zloy xaker [14]
3 years ago
12

PLEASE HELP WILL mark brainliest

Chemistry
2 answers:
Naddika [18.5K]3 years ago
8 0

Answer:

BRUH ARE YOU IN FIRST GRADE

Explanation:

Cerrena [4.2K]3 years ago
5 0
Ok send me the work and I will
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A material has an ASTM grain size number of 7. Determine the magnification, if the number of grains per square inch observed is:
Luden [163]

Answer:

A) M = 100X

B) M = 36X

C) M = 178.88X

Explanation:

Given data:

ASTM grain size number 7

a) total grain per inch^2 - 64 grain/inch^2

we know that number of grain per square inch is given as

Nm = 2^{n-1} (\frac{100}{M})^2

where M is magnification, n is grain size

therefore we have

64 = 2^{7-1}(\frac{100}{M})^2

solving for M we get

M = 100 X

B)  total grain per inch^2 = 500 grain/inch^2

we know that number of grain per square inch is given as

Nm = 2^{n-1} (\frac{100}{M})^2

where M is magnification, n is grain size

therefore we have500 = 2^{7-1}(\frac{100}{M})^2

solving for M we get

M = 36 X

C) Total grain per inch^2 = 20 grain/inch^2

we know that number of grain per square inch is given as

Nm = 2^{n-1} (\frac{100}{M})^2

where M is magnification, n is grain size

therefore we have20 = 2^{7-1}(\frac{100}{M})^2

solving for M we get

M = 178.88 X

8 0
3 years ago
Q1:What is one result of meiosis?
anzhelika [568]

Answer:

1.  the end result of meiosis is haploid daughter cells with chromosomal combinations different from those originally present in the parent.

2.  Prophase, metaphase, and telophase

5 0
3 years ago
Which of the following results in a chemical change in matter?
LenKa [72]
The correct answer is 

D burning wood

because it's changing the wood.

The other's are physical changes because it's still the same thing, it's just in a different form.

Glad I could help, and good luck!

AnonymousGiantsFan
8 0
3 years ago
How many attoms are equal 6.19 moles of hydrogen?​
Wittaler [7]

Answer:

3.727x10^24 atoms.

Explanation:

When calculating how many molecules are in a compound or element, we refer to Avogardo's number.

Your equation will look like this: 1 mole/ 6.022x10^23 molecules (Avogardo's number).

Multiply 6.19 by Avogardo's number to get your answer.

4 0
3 years ago
What is a simple definition of atom, particle, and kinetic?
JulsSmile [24]

Answer:

Atom: The smallest particle of an element that has the properties of the element and can exist either alone or in combination.

Particle: One of the very small parts of matter (as a molecule, atom, or electron)

Kinetic: Of or relating to the motions of material bodies and the forces and energy associated with them

Explanation:

4 0
3 years ago
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