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viktelen [127]
3 years ago
11

Why blood capillary walls differ from veins and arteries​

Chemistry
1 answer:
Mashcka [7]3 years ago
5 0

Answer: Capillary walls main function is to exchange materials between the blood and tissue cells, While Arteries carry blood away from the heart to parts of your body like your lungs for instance, and your Veins carry blood back to your heart.

I hope this helps :)

Explanation:

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Carlos is looking at a picture of a convergent boundary on which a volcanic arc and a trench are identified. Which type of conve
Elan Coil [88]

The answer would be:

Oceanic-Oceanic Convergent Plate

This is why:

When two oceanic plates collide, the heavier of the two would subduct or in other words, go under the other plate. When this happens, ocean trenches and volcanic arcs form. The trench forms at the point oceanic plate goes under the other plate. And above the other plate that goes over create volcanic arcs.  

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3 years ago
If 28 mL of 6.2 M H2SO4 was spilled, what is the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid?
Naddika [18.5K]

Answer:

The answer is 30 g of sodium hydrocarbonate

Explanation:

This is a acid-base reaction, so in order to neutralise the spilled acid, the mol of spilled acid should be calculated.

M = n / V => n = M x V = 0.028 x 6.2 = 0.1736 mol

Since 1 mol of sulfuric acid generates 2 mol of H⁺, so the mole of H⁺ is 0.3472 mol or 0.35 mol with two significant figures.

To neutralized the acid, we need at least the same mole of base, so we need at least 0.35 mol of NaHCO₃, which can be converted to its mass at 29.4 g.

Since the answer need to be expressed in two significant figures and also need to make sure to neutralize all the acid, so we will use a little excess base. The answer is 30 g.

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3 years ago
When scientists looked at the polarity of bands of rock on either side of the mid-ocean ridges, what did they find? A. that ther
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I am pretty sure the answer is D. That the patterns of a polarity matched up on both sides.
3 0
3 years ago
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Identify the green-yellowish gas that is used as a disinfecting agent. Identify the green-yellowish gas that is used as a disinf
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The answer is chlorine

That is chlorine is the green-yellowish gas that is used as a disinfecting agent.

Among the options, iodine is a solid ,bromine is liquid while fluorine and chlorine are gases.

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4 0
4 years ago
A compound contains 14.5 g of magnesium and 3.5 g of oxygen. What is the mass percent of oxygen in the compound?
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3 0
3 years ago
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