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3 years ago

How does the alcohol enter the body? Describe the process. Where does most of the absorption take place?

1 answer:

3 0

Explanation: Once swallowed, a drink enters the stomach and small intestine, where small blood vessels carry it to the bloodstream. Approximately 20% of alcohol is absorbed through the stomach and most of the remaining 80% is absorbed through the small intestine.

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If the take off velocity of an airplane on a runway is 300 km /hr with an acceleration of 1 m/s2. What is the take off time of t

Rama09 [41]

<h3>Answer:</h3>

83.33 seconds.

<h3>Explanation:</h3>

<u>We are given;</u>

Take off velocity as 300 km/hr
Acceleration as 1 m/s²

We are required to calculate the take off time of the airplane.

<h3>Step 1: Convert velocity from km/hr to m/s </h3>

We are going to use the conversion factor.

The conversion factor is 3.6 km/hr per m/s

Therefore;

Velocity = 300 km/hr ÷ 3.6 km/hr per m/s

= 83.33 m/s

<h3>Step 2: Calculate the take off time</h3>

We know that;

v = u + at

where, u is the initial velocity, v the final velocity, a the acceleration and t is time.

But, initial velocity is Zero

Therefore;

83.33 m/s = 1 m/s² × t

Thus;

time = 83.33 m/s ÷ 1 m/s²

= 83.33 seconds

Therefore, the take off time is 83.33 seconds.

5 0

3 years ago

(a) what is meant by diffusion? give one example of diffusion in gases.

Drupady [299]

A) The mixing of a substance with another substance due to the motion or movement of its particles is called diffusion.
b) Gaseous particles tend to undergo diffusion because they have kinetic energy.

5 0

3 years ago

Read 2 more answers

If 4.12 l of a 0.850 m-h3po4 solution is be diluted to a volume of 10.00 l, what is the concentration of the resulting solution?

statuscvo [17]

The process in which the concentration of the solution is lessened by the addition of water is said to be dilution and equation of dilution relates the initial concentration and volume of stock solution with the final concentration and volume of the solution.

Formula is given by:

$C_{1}V_{1}=C_{2}V_{2}$ (1)

where,

$C_{1}$ is the initial concentration

$V_{1}$ is the initial volume

$C_{2}$ is the final concentration

$V_{2}$ is the final volume

Now,

$C_{1}$ = 0.850 M

$V_{1}$ = 4.12 L

$C_{2}$ =?

$V_{2}$ = 10.00 L

Substitute the give values in formula (1),

$0.850 M\times 4.12L=C_{2}\times 10.00 L$

$C_{2} =\frac{0.850 M\times 4.12L}{10.00 L}$

= $0.3502 M$

Thus, the final concentration of the $H_{3}PO_{4}$ solution = $0.3502 M$

5 0

3 years ago

What are the spectator ions in the reaction between mg(oh)2 (aq) and hcl (aq)?

vivado [14]

The spectator ions in the reaction between aqueous $Mg(OH)_2$ and aqueous HCl would be $Mg^{2+$ and $Cl^-$ ions.

<h3>What are spectator ions?</h3>

Spectator ions are anions or cations that exist both as reactants and as products in a reaction. Their forms remain unchanged both in the reactants and in the products.

Aqueous $Mg(OH)_2$ and aqueous HCl react according to the following equation:

$Mg (OH)_2 (aq) + 2HCl (aq) --- > MgCl_2 (aq) +2 H_2O (l)$

Before the reaction, $Mg^{2+$ and $Cl^-$ existed in the reactants as $Mg(OH)_2$ and HCl respectively. After the reaction, $Mg^{2+$ and $Cl^-$ exist as $MgCl_2$ in the product.

Thus, the spectator ions in this case are $Mg^{2+$ and $Cl^-$ ions because their forms did not change after the reaction.

More on spectator ions can be found here: brainly.com/question/28913274

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6 0

1 year ago

Each liquid boils only at a certain temperature, which is called its ?

mote1985 [20]

<span>Each liquid boils only at a certain temperature, which is called its </span><span>Boiling Point

Water for example has a boiling point of 100 degrees Celsius.</span>

3 0

3 years ago