Answer: it is A .
hope this helps!!!!
Explanation:Be is not multivalent
Answer:
it contains non polar covalent bond because both shares 2 equal number of electrons between eachother.
<em>as</em><em> </em><em>non</em><em> </em><em>polar</em><em> </em><em>covalent</em><em> </em><em>bond</em><em> </em><em>is</em><em> </em><em>defined</em><em> </em><em>as</em><em> </em><em>the</em><em> </em><em>type</em><em> </em><em>of</em><em> </em><em>covalent</em><em> </em><em>bond</em><em> </em><em>in</em><em> </em><em>which</em><em> </em><em>there</em><em> </em><em>is</em><em> </em><em>equal</em><em> </em><em>sharing</em><em> </em><em>of</em><em> </em><em>electrons</em><em> </em><em>takes</em><em> </em><em>place</em><em>.</em>
<em><u>hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em>
Answer:
The cytoplasm of erythrocytes is rich in hemoglobin, an iron-containing biomolecule that can bind oxygen and is responsible for the red color of the cells and the blood. Each human red blood cell contains approximately 270 million of these hemoglobin molecules.
Answer:
D. the conversion of one element into another
Explanation:
Transmutation is the action of changing or the state of being changed into another form. Therefore, D is the correct answer choice.
Strategy: with the measures you can determine the volume of the plate of aluminum. Then you can use the density of aluminum to calculate the mass.
With the mass of aluminum and its atomic mass you can find the number of moles and thereafter the number of atoms.
Finally divide the cost by the number of atoms to find the cost of one single atom.
Let's do it.
Volume of aluminum plate, V: 0.0112 in* 4.83 in* 2.60 in * [2.54 cm/in]^3 = 2.305 cm^3
Density of aluminum (from Wikipedia), d = 2.70 g/cm^3
mass, m = d*V = 2.305 cm^3 * 2.70 g/ cm^3 = 6.22 g
Atomic mass of aluminum (from Wikipedia), am = 27 g / mol
Number of moles, n = m/am = 6.22 g / 27 g / mol = 0.23 mol
Number of atoms = n*Avogadro constant = 0.23 mol * 6.022 * 10^23 atoms/mol = 1.39*10^23
Cost per atom = cost of the can / number of atoms =$ 0.05 /1.39*10^23 atoms = 3.60 * 10^ - 25 $/atom