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3 years ago

Who ever answer this is genius ????????? let's see?

Chemistry

1 answer:

Flura [38]3 years ago

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What is a biotic factor, and a an abiotic factor

statuscvo [17]

Explanation:

biotic factors are the things which have life like animals and plants

And Abiotic factors are the things which don't have life like air,stone and river

3 0

3 years ago

Read 2 more answers

Calculate the hight of a column of liquid glycerol in meters required to exert the same pressure as 3.02 m if CCl4?

katovenus [111]

Answer:

Approximately $3.81\; \rm m$ .

Explanation:

Look up the density $\rho$ of carbon tetrachloride, $\rm CCl_4$ , and glycerol:

Density of carbon tetrachloride: approximately $1.59\times 10^{3}\; \rm kg \cdot m^{-3}$ .
Density of glycerol: approximately $1.26\times 10^{3}\; \rm kg \cdot m^{-3}$ .

Let $g$ denote the gravitational field strength. (Typically $g \approx 9.81\; \rm N \cdot kg^{-1}$ near the surface of the earth.) For a column of liquid with a height of $h$ , if the density of the liquid is $\rho$ , the pressure at the bottom of the column would be:

$P = \rho\cdot g \cdot h$ .

The pressure at the bottom of this carbon tetrachloride column would be:

$\begin{aligned} P &= \rho \cdot g \cdot h \\ & \approx 1.59\times 10^{3} \; \rm kg \cdot m^{-3} \times 9.81\; \rm N \cdot kg^{-1} \times 3.02 \; \rm m \approx 4.71 \times 10^{4} \; \rm N \cdot m^{-2} \end{aligned}$ .

Rearrange the equation $P = \rho\cdot g \cdot h$ for $h$ :

$\displaystyle h = \frac{P}{\rho \cdot g}$ .

Apply this equation to calculate the height of the liquid glycerol column:

$\begin{aligned}h &= \frac{P}{\rho \cdot g} \\ &\approx \frac{4.71 \times 10^{4}\; \rm N \cdot m^{-2}}{1.26 \times 10^{3}\; \rm kg \cdot m^{-3} \times 9.81\; \rm N \cdot kg^{-1}} \approx 3.81\; \rm m\end{aligned}$ .

4 0

3 years ago

In examining an organic compound, you discover that it contains the following functional group. What class of organic compound i

Romashka [77]

Option B. carboxylic acid

For example

CH3 - COOH, is the acetic acid or etanoic acid.

where - COOH is C bonded with O (trhough doble bond) and with OH (with a single bond)

8 0

3 years ago

What is the mass (in kg) of 2.16 • 10^24 atoms of lead?

KiRa [710]

Answer:

0.783 kg

Explanation:

You must make the conversions:

atoms of Pb ⟶ moles of Pb ⟶ grams of Pb ⟶ moles of Pb

$\text{Moles of Pb} = 2.16 \times 10^{24} \text{ atoms Pb} \times \frac{\text{1 mol Pb} }{ 6.022 \times 10^{23} \text{ atoms Pb} } = \text{3.589 mol Pb} \\$

$\text{Mass of S} = \text{3.589 mol Pb} \times \frac{\text{207.2 g Pb}}{\text{1 mol Pb} } = \text{743 g Pb = 0.783 kg Pb} \\$

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3 years ago

Which pair of elements is most likely to form an ionic compound with each other?

mixer [17]

Barium and chlorine

3 0

3 years ago

Who ever answer this is genius ????????? let's see?​

Who ever answer this is genius ????????? let's see?