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SIZIF [17.4K]
4 years ago
10

Weight measures (2 points) how dense an object is. how large an object is. the amount of mass in an object. the effect of gravit

y on an object.
Chemistry
1 answer:
Cerrena [4.2K]4 years ago
4 0

A weight of an object is a measure of the force exerted on the object by gravity. The pull of gravity on the earth gives an object a downward acceleration of about 9.8 m/s2.

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At physiological ph, the ionized state of the amino (nh2) group in the r group of lysine is:
kherson [118]

Physiological pH is between 7.37 and 7.43

Lysine is a basic amino acid, which means it has two NH2 groups and one COOH group.

Lysine pKas are: 2.16, 9.06 and 10.05

At low pH (lower than the first pKa, in this case: lower than 2.16) the three groups are protoned. As you increase pH, the first group to lose its proton is the acid group, then the alpha-amino group and then the R-amino group. You will have everything non protoned at a high pH (higher than the highest pKa, in this case: 10.05).

Physiological pH is higher than the lowest pKa and lower than the middle pKa, so it’s the second case: the acid is not protoned, the R-amino is protoned and the alpha amino is protoned.

Protoned aminos are cations: NH3+.

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3 years ago
Mindy has been training to run in a marathon. Finally, race day arrives and Mindy registers for the race. Mindy begins the marat
MissTica
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5 0
3 years ago
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Balance the following reaction. Leave the box empty if no other coefficient is needed. C2H5 + O2 → CO2 +H2O
Mariulka [41]

Answer: -

4C₂H₅ + 13 O₂ → 8 CO₂ + 10 H₂O

Explanation: -

The given equation is

C₂H₅ + O₂ → CO₂ + H₂O

Balancing for H,

2C₂H₅ + O₂ → CO₂ + 5H₂O

Balancing for C

2C₂H₅ + O₂ → 4CO₂ + 5H₂O

Now right hand side we are getting 13 O which is an odd number.

In order to balance O, we first try to even out the number of O on right side by multiplying whole equation by 2.

4C₂H₅ + 2O₂ → 8CO₂ + 10H₂O

Now balancing for O

4C₂H₅ + 13 O₂ → 8 CO₂ + 10 H₂O

3 0
4 years ago
Name the center of circles s
Mekhanik [1.2K]

Answer: point equidistant

Explanation:

4 0
3 years ago
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Hydrochloric acid reacts with sodium hydroxide to form water and sodium chloride.Hydrochloric acids is an extremely acidic,clear
Luden [163]

Answer:

Hydrochloric acid is a strong acid with a distinct pungent smell and it is highly reactive while Sodium hydroxide is a strong base and it is fully Ionic

6 0
3 years ago
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