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denis-greek [22]
3 years ago
12

0.00621 ton to grams

Chemistry
1 answer:
Alexandra [31]3 years ago
3 0
It's 5633.617235 grams
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Hydrogen bonds between adenine & thymine or guanine and cytosine form ______ _______ that join the two strands of the DNA do
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Base pairs.

Four + Five = Nine

The third letter in base is S.

IT ADDS UP.

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What mass of sucrose is needed to make 300.0 mL of a 0.5 M solution? (molar mass=<br> 342.34 g/mol)
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The sum of the atomic masses of the atoms in one molecule of C3H6Br2
rusak2 [61]

Answer is: 1) formula mass.

Formula weight is given in atomic mass units (amu).

The unified atomic mass unit (amu) is a standard unit of atom mass.

Atomic mass of carbon atom is 12.01 amu.

Atomic mass of hydrogen atom is 1.01 amu.

Atomic mass of bromine atom is 79.9 amu.

In chemical compound C₃H₆Br₂ there are three carbon atoms, six hydrogen atoms and two bromine atoms.

M(C₃H₆Br₂) = 3 · 12.01 amu + 6 · 1.01 amu + 2 · 79.9 amu.

M(C₃H₆Br₂) = 201.89 amu; formula mass of one molecule.

8 0
3 years ago
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Which scientific discipline best links the use of titanium and plastics in artificial bone and joint replacements? physics chemi
Troyanec [42]

Correct answer choice is :


B) Chemistry


Explanation:


Advanced titanium-based compounds have been also used for some years for extremely stressed femoral segment stalks. Both metal samples present a higher impedance to pitting, crack, and galvanic corrosion, stress corrosion weakening and corrosion burnout than polished stainless steel of comparatively low power properties. For this purpose, the low element power of hip prostheses made of the recent stuff is paid for by a larger cross-section of the prosthetic stem, this depending on the geometric situations of the femur.

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Draw the best Lewis structure of CH3NO2, a neutral compound. Draw the Lewis structure by placing atoms on the grid and connectin
steposvetlana [31]

Answer :  The Lewis-dot structure of CH_3NO_2 is shown below.

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is, CH_3NO_2

As we know that carbon has '4' valence electrons, hydrogen has '1' valence electron, nitrogen has '5' valence electrons and oxygen has '6' valence electrons.

Therefore, the total number of valence electrons in CH_3NO_2 = 4 + 3(1) + 5 + 2(6) = 24

According to Lewis-dot structure, there are 14 number of bonding electrons and 10 number of non-bonding electrons.

Now we have to determine the formal charge for each atom.

Formula for formal charge :

\text{Formal charge}=\text{Valence electrons}-\text{Non-bonding electrons}-\frac{\text{Bonding electrons}}{2}

\text{Formal charge on C}=4-0-\frac{8}{2}=0

\text{Formal charge on N}=5-2-\frac{6}{2}=0

\text{Formal charge on }H_1=1-0-\frac{2}{2}=0

\text{Formal charge on }H_2=1-0-\frac{2}{2}=0

\text{Formal charge on }H_3=1-0-\frac{2}{2}=0

\text{Formal charge on }O_1=6-6-\frac{2}{2}=-2

\text{Formal charge on }O_2=6-6-\frac{2}{2}=-2

Hence, the Lewis-dot structure of CH_3NO_2 is shown below.

8 0
4 years ago
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