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2 years ago

How is a wound healing a chemical change? please explain

Chemistry

2 answers:

masya89 [10]2 years ago

5 0

Answer:

its because fibrinogen is a chemical substance that builds up at the wound and gets hard by the action of air to prevent bleeding

ELEN [110]2 years ago

4 0

The process seems simple enough, but wound healing is really quite complicated and involves a long series of chemical signals. Certain factors can slow or prevent healing entirely. One of the most dramatic factors that can affect wound healing is reduced or poor blood supply to the wound.

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A crane lifts a 5,800-N block from the ground to 20 m above the ground in 80 seconds. How much Power

earnstyle [38]

Answer:

1450 W

Explanation:

5800n x 20m =1450w

80s

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2 years ago

Why is the melting of ice a physical change?

yan [13]

A physical change basically involves a change in physical properties. Some examples of physical properties include: texture, shape, size, color, volume, mass, weight, etc.

The water melting has changed the shape and therefore it's physical properties, but the chemical nature of the water has not been altered.
So that's why it's a physical change, and not a chemical change.

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2 years ago

Convert 15.2 moles of K to atoms of K.

choli [55]

Answer:

$\boxed {\boxed {\sf 9.15*10^{24} \ atoms \ K}}$

Explanation:

To convert atoms to moles, Avogadro's Number must be used: 6.022*10²³.

This tells us the amount of particles (atoms, molecules, etc.) in 1 mole of a substance. In this case it is the atoms of potassium. We can create a ratio.

$\frac {6.022*10^{23} \ atoms \ K }{ 1 \ mol \ K }$

Multiply by the given number of moles: 15.2

$15.2 \ mol \ K *\frac {6.022*10^{23} \ atoms \ K }{ 1 \ mol \ K }$

The moles of potassium cancel.

$15.2 *\frac {6.022*10^{23} \ atoms \ K }{ 1 }$

The denominator of 1 can be ignored.

$15.2 * {6.022*10^{23} \ atoms \ K }{$

Multiply.

$9.15344*10^{24} \ atoms \ K$

The original measurement of moles has 3 significant figures, so our answer must have the same. For the number we calculated that is the hundredth place. The 3 in the thousandth place tells us to leave 5.

$9.15*10^{24} \ atoms \ K$

In 15.2 moles of potassium, there are 9.15*10²⁴ atoms of potassium.

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2 years ago

Ch2(c(ch3) 2 iupac name

Slav-nsk [51]

Answer:

hope this helps please like and mark as brainliest

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2 years ago

How are quantum numbers related to atomic orbitals?

sdas [7]

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2 years ago

How is a wound healing a chemical change? please explain ​

How is a wound healing a chemical change? please explain