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IRINA_888 [86]
3 years ago
13

Multiple Select Question

Chemistry
1 answer:
Serggg [28]3 years ago
7 0

The four (4) functions of water in the body are:

I. Site for many reactions.

II. Transport of nutrients and wastes.

III. Carries heat.

IV. Acts as solvent.

Water can be defined as a liquid molecule that comprises two (2) main chemical elements, which are hydrogen and oxygen in the ratio of two to one (2:1).

Generally, water is considered to be an important and essential chemical molecule that aids in the growth and development of the body of living organisms. The four (4) functions of water in the body of a living organism are:

  • It is typically a site for many reactions.
  • It helps in the transportation of nutrients and wastes around the body.
  • It carries heat from a hot region.
  • It acts as solvent to dissolve a solute to produce a solution.

Read more: brainly.com/question/19695951

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What is the charge of this atom? <br> 65 protons <br> 60 electrons <br><br> A)-5<br> B)+5<br> C)0
Pani-rosa [81]

Answer:

B. +5

Explanation:

4 0
3 years ago
Read 2 more answers
. The freezing point of an aqueous solution containing a nonelectrolyte solute is – 2.79 °C. What is the boiling point of this s
Semmy [17]

Answer:

Boiling point of the solution is 100.78°C

Explanation:

This is about colligative properties.

First of all, we need to calculate molality from the freezing point depression.

ΔT = Kf . m . i

As the solute is nonelectrolyte, i = 1

0°C - (-2.79°C) = 1.86 °C/m . m . 1

2.79°C / 1.86 m/°C = 1.5 m

Now, we go to the boiling point elevation

ΔT = Kb . m . i

Final T° - 100°C  =  0.52 °C/m . 1.5m . 1

Final T° =  0.52 °C/m . 1.5m . 1  + 100°C → 100.78°C

4 0
3 years ago
noble gases are used in many situations where a safe and constant environment must be maintained. for example, helium is used to
Lapatulllka [165]

Answer:

Noble gases have a complete valence electron shell making them stable and nonreactive.

Explanation:

4 0
2 years ago
How many grams are in 44.8 liters of nitrogen gas, n2?<br> a) 56g<br> b) 27g<br> c) 36g<br> d) 112g
kkurt [141]

a) 56g

<h3>Calculation:</h3>

At STP,

22.4 L of N₂ = 1 mol

We have given 44.8 L of N₂, therefore,

44.8 L of N₂ = \frac{44.8}{22.4}

                    = 2 mol

We know that,

1 mol of N₂ = 28 g

Hence,

2 mol of N₂ = 28 × 2

                   = 56g

Hence, there are 56 g of N₂ in 44.8 L of nitrogen gas.

Learn more about calculation at STP here:

brainly.com/question/9509278

#SPJ4

3 0
2 years ago
Read 2 more answers
Which metals are called noble metals
Diano4ka-milaya [45]

I don't know if this is multiple choice but if it isn't I can name of few.

Fun Fact: Noble Metals are chemical elements that have outstanding tolerance and resistance to oxidation.

Answer: Palladium, Silver, Platinum, and Gold. Those are all examples of Noble Metals.

Other: Ruthenium, osmium, and rhodium.

<em>Hope this helps!</em>

6 0
3 years ago
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