Ask question

Ask question

All categories

3 years ago

14

According to the video, what qualities do Chemists need? Check all that apply. curiosity ability to focus on details ability to

lift heavy objects negotiation skills friendly attitude painstaking follow-through

1 answer:

tekilochka [14]3 years ago

5 0

Curiosity, ability to focus on detail, and painstaking follow-throw (i think, not really sure on the last one)

You might be interested in

which factor is most responsible for the fact that water is a liquid rather than a gas at room temperature

frosja888 [35]

The answer is Hydrogyn bonding. It keeps the water molocules bonded together and in a liquid state, without it it'd be in a gashious state.

5 0

3 years ago

Read 2 more answers

Diffrence btwn a period and a group

Tpy6a [65]

Rows of elements are called periods. The period number<span> of an element signifies the highest unexcited energy level for an electron in that element.

</span>Columns of elements help define element groups<span>. </span>Elements within a group share<span> several common properties. Groups are elements have the same outer electron arrangement.</span>

8 0

3 years ago

Of the following which element is the heaviest? helium argon lithium aluminum

Georgia [21]

Answer:

Lithium

Explanation:

it is the only metal listed.

5 0

3 years ago

At 20°C the vapor pressure of benzene (C6H6) is 75 torr, and that of toluene (C7H8) is 22 torr. Assume that benzene and toluene

valina [46]

Answer: The mole fraction of benzene will be 0.34 and mole fraction of toluene is 0.66

Explanation:

According to Raoult's law, the vapor pressure of a component at a given temperature is equal to the mole fraction of that component multiplied by the vapor pressure of that component in the pure state.

$p_1=x_1p_1^0$ and $p_2=x_2P_2^0$

where, x = mole fraction in solution

$p^0$ = pressure in the pure state

According to Dalton's law, the total pressure is the sum of individual pressures.

$p_{total}=p_1+p_2\\$ $p_{total}=x_{benzene}p_{benzene}^0+x_{toluene}P_{toluene}^0$

$x_{benzene}=x$ ,

$x_{toluene}=1-x_{benzene}=1-x$ ,

$p_{benzene}^0=75torr$

$p_{toluene}^0=22torr$

$p_{total}=40torr$

$40=x\times 75+(1-x)\times 22$

$x=0.34$

Thus (1-x0 = (1-0.34)=0.66

Thus the mole fraction of benzene will be 0.34 and that of toluene is 0.66

8 0

4 years ago

Which describes any substance that shatters or breaks easily?

Daniel [21]

Answer:

Brittle

Explanation:

3 0

3 years ago

Read 2 more answers