Answer: density =3.377g/cm³
Explanation:
Density =( molecular weight × effective number of atoms per unit cell) / (volume of unit cell × avogadro constant)
D= (M ×n) /(V×A)
M= 137g/mol
n= 2 (For BCC)
V=a³ , where a= 4r/√3
a= (4×222)/√3
a=512.69pm
a= 512.69×10^-10cm
V= ( 512.69×10^-10)^3
V= 1.3476×10^-22cm³
D= (137×2)/(1.3476×10^-22 × 6.02^23)
D= 3.377g/cm³
Therefore the density of barium is 3.377g/cm³
The reactants of photosynthesis are represented by 
and 
.
<h3>Photosynthesis</h3>
It is a reaction through which green plants make use of inorganic products such as water and carbon dioxide in the presence of solar radiation to make sugar. Oxygen is liberated as a by-product.
The equation of the reaction is represented by:
Thus, the reactants are represented by and respectively.
More on photosynthesis can be found here: brainly.com/question/1388366
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The value of an element that is used is the molar mass. An isotope is another form of the element. The difference is there are different number of protons in each isotope. Molar mass is a unit to measure the mass of the substance over the amount of substance in terms of moles.
