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3 years ago

7

Milk is an example of a (1 point) solution. homogeneous mixture. colloid. compound

1 answer:

alukav5142 [94]3 years ago

7 0

Homogeneous mixture

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as a bystander, the _______ approach doesn’t work when drugs or alcohol are involved, as the person you’re trying to stop is mor

tia_tia [17]

When trying to step into an argument or misunderstanding between people as a <em>bystander with drugs and alcohol involved</em>, the direct approach won't work.

When trying to make peace between quarelling individuals as a bystander, the direct approach would <em>fail if alcohol or drugs is being held</em> as the prsin might see you as a villian.

Only when the person <em>knows and trusts you will this approach work</em>. Hence, when drugs or alcohol is involved, other methods of rendering help should be employed.

Therefore, the direct approach won't work in the this scenario.

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3 years ago

What needs to be known about an object in order to determine its kinetic energy.

viktelen [127]

Answer:

we need to know it's

mass and velocity

Explanation:

then use the formula of kinetic energy

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3 years ago

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A sealed glass jar has a small amount of water on the bottom. The rest of the volume in the jar is taken up by helium gas at a p

Natalija [7]

<u>Answer:</u>

The temperature of the water is 70°C

<u>Explanation:</u>

Partial pressure of helium gas = 526 mmHg

Total pressure inside the jar= 760 mmHg

Suppose partial pressure of helium gas is $P_H_e$ and partial pressure of water is $P_H__2O$

And total pressure is $P_T$

As we know

$\mathrm{P}_{\mathrm{T}}=\mathrm{P}_{\mathrm{HE}}+\mathrm{P}_{\mathrm{H} 2 \mathrm{O}}$

Hence

Putting the values

$760=526+\mathrm{P}_{\mathrm{H} 2 \mathrm{O}}$

$\mathrm{P}_{\mathrm{H} 2 \mathrm{O}}=760-526$

$\mathrm{P}_{\mathrm{H} 20}=234 \mathrm{mm} \mathrm{Hg}$

In bar,

$\mathrm{P}_{\mathrm{H} 2 \mathrm{O}}=234 \mathrm{mm} \mathrm{Hg} \times \frac{1.01325 \mathrm{bar}}{760 \mathrm{mm} \mathrm{Hg}}$

= 0.312 bar

Now according to the steam table

With the vapour pressure of water as 0.312 bar the temperature corresponds to 70°C

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3 years ago

Sodium (Na) and chlorine (Cl) combine together to form table salt (sodium chloride). Looking at the periodic table, which elemen

hodyreva [135]

Answer:

A. Iodine (falls in the same group as chlorine)

Explanation:

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4 years ago

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A research team has just discovered a new element called Likhitium. Now they need to determine the average atomic mass in order

earnstyle [38]

The question is incomplete, the complete question is shown in the image attached to this answer.

Answer:

139.13

Explanation:

The average atomic mass of the element Likhitium is the sum of the relative abundance of all the isotopes of Likhitium.

We obtain the relative atomic mass of Likhitium as follows;

(44.7/100 * 138) + (52.3/100 * 139) + (0.5/100 * 140) + (2.5/100 * 141)

61.7 + 73.2 + 0.7 + 3.53 = 139.13

Hence the relative abundance of Likhitium is 139.13

6 0

3 years ago