Complete the statement about the environment and its components.

Which type of land biome is created and/orsubstained by a rain shadow

lana [24]

If you can’t figure it out You should l look it up in the internet

7 0

4 years ago

If 9.2 g of calcium react completely with excess aluminum chloride how many grams of aluminum would be produced?

Gekata [30.6K]

Explanation:

3Ca(s) + 2AlCl3(aq) -> 3CaCl2(aq) + 2Al(s)

According to the question, Ca is the limiting reactant.

Therefore, we equate Ca to Aluminium which is the product whose mass we want to find

Molar mass of Ca- 40g/mol

". ". of Al- 27g/mol

3Ca --> 2Al

3×40 --> 2×27

9.2 --> x

x = 9.2×2×27= 496.8÷120=4.14

8 0

3 years ago

Which scientific discipline best links the use of titanium and plastics in artificial bone and joint replacements?

yarga [219]

Combination of biology and materials
This branch of science is called as Bio materials
This disciple covers the science and function of all equipment that is used in the biology

4 0

3 years ago

Read 2 more answers

Calculate the number of particles in a 0.75 gram sample of Calcium Nitrate; Ca(NO3)2

kkurt [141]

The number of particles : 2.75 x 10²¹

<h3>Further explanation </h3>

A mole is a unit of many particles (atoms, molecules, ions) where 1 mole is the number of particles contained in a substance that is the same amount as many atoms in 12 gr C-12

1 mole = 6.02.10²³ particles

$\tt n=\dfrac{N}{N_o}$

N = number of particles

No = Avogadro number (6.02.10²³)

n = number of moles

While the number of moles can also be obtained by dividing the mass (in grams) with the molar mass of element or molecule

0.75 gram sample of Calcium Nitrate; Ca(NO₃)₂

MW of Ca(NO₃)₂ : 164.09 g/mol

$\tt mol~Ca(NO_3)_2=\dfrac{0.75}{164.09}=0.00457$

The number of particles

$\tt N=n\times N_o\\\\N=0.00457\times 6.02\times 10^{23}=2.75\times 10^{21}$

5 0

3 years ago

The mass spectrum of an organic compound shows the relative abundances of M to be 34.76% and M 1 to be 2.632%. Assuming the peak

alukav5142 [94]

The number of carbon atoms present in any compound is equal to seven.

<h3>How do we calculate the number of carbon atoms?</h3>

Number of carbon atoms present in any compound will be calculated by using the following equation:

No. of Carbon atoms = Relative intensity of M+1 peak / Natural abundance of C13

Intensity of molecular peak = 34.76%

Intensity of M+1 peak = 2.632%

Relative intensity of M+1 peak = (100/34.76)×2.632 = 7.57%

Given that natural abundance of M+1 = 1.07%

On putting values on above equation, we get

No. of C atoms = 7.57 / 1.07 = 7.07 = 7 (approx)

Hence number of carbon atoms is 7.

To know more about mass spectrum, visit the below link:

brainly.com/question/17368088

#SPJ1

7 0

3 years ago