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2 years ago

Which fatty acid shown above (A or B) is a saturated fatty acid? How do you know?

Chemistry

1 answer:

bonufazy [111]2 years ago

5 0

Answer:

The answer is A.

Explanation:

Saturated fatty acids contain long, unbranched chains of carbon atoms. In addition to that, there are no double bonds within the carbon atoms. Hope this helps :)

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When the temperature of the gas changes from cold to hot, the amount of pressure is ___________.

klio [65]

Assuming constant volume, if you increase temperature, the pressure will increase. So it is B: increasing

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3 years ago

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What are a physical properties?

pychu [463]

Physical properties include: appearance, texture, color, boiling point, melting point, ect.

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3 years ago

Refer to the following illustration. How many hydrogen atoms could bond with oxygen?

WITCHER [35]

2.

The reason why is because there are 2 available electron spots on the orbital for the oxygen atom. Hydrogen atoms have one proton and one electron, thus, in order to fill the oxygen atom orbital to a full outer shell, a maximum of 2 atoms could bond with the oxygen atoms.

6 electrons (oxygen)+ 1 electron (hydrogen)+ 1 electron (hydrogen)= 8

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2 years ago

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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:

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

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2 years ago

Calcium reacts with oxygen to form calcium oxide. Name the reactants.

LUCKY_DIMON [66]

CaO
Calcium reacts with oxygen to form calcium oxide. The chemical equation for this reaction is Ca + O2 → CaO.

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2 years ago