3 years ago

Help me pleaseeeeeeeeeeeeeeee

Chemistry

1 answer:

Burka [1]3 years ago

8 0

Answer:

C) 2-bromo-1-methylpropane

You might be interested in

What is the full name of the compund CuSO4? Please can you help me? (✿◡‿◡)

kenny6666 [7]

CuSO4 is Copper Sulphate.

4 0

3 years ago

All of the following are signs of chemical change except

Bumek [7]

Sound production is not chemical change.

8 0

3 years ago

Calcium has a cubic closest packed structure as a solid. Assuming that calcium has an atomic radius of 197 pm, calculate the den

NISA [10]

Answer:

$\rho=1.54\ g/cm^3$

Explanation:

The expression for density is:

$\rho=\frac {Z\times M}{N_a\times {{(Edge\ length)}^3}}$

$N_a=6.023\times 10^{23}\ {mol}^{-1}$

M is molar mass of Calcium = 40.078 g/mol

For cubic closest packed structure , Z= 4

$\rho$ is the density

Radius = 197 pm = $1.97\times 10^{-8}\ cm$

Also, for fcc, $Edge\ length=2\sqrt{2}\times radius=2\sqrt{2}\times 1.97\times 10^{-8}\ cm=5.572\times 10^{-8}\ cm$

Thus,

$\rho=\frac{4\times \:40.078}{6.023\times \:10^{23}\times \left(5.572\times 10^{-8}\right)^3}\ g/cm^3$

$\rho=\frac{160.312}{10^{23}\times \:6.023\left(10^{-8}\times \:5.572\right)^3}\ g/cm^3$

$\rho=\frac{160.312}{10^{23}\times \:1.04195E-21}\ g/cm^3$

$\rho=\frac{160.312}{104.19483}\ g/cm^3$

$\rho=1.54\ g/cm^3$

7 0

3 years ago

The burning of gasoline in an automobile engine is an example of a(n) _____.

inysia [295]

It is an exothermic reaction because the heat is released.

6 0

3 years ago

Read 2 more answers

The tendency for an object at rest to remain at rest is?

cestrela7 [59]

Newtons First Law... Newton's first law of motion - sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

6 0

4 years ago