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3 years ago

Why we need blood cholesterol?

Chemistry

2 answers:

Rzqust [24]3 years ago

8 0

Answer:

We need blood cholesterol because our body uses it to build your structure of cell membranes, make hormones like oestrogen, and testosterone, and to help your metabolism work well.

Ulleksa [173]3 years ago

4 0

Answer:

our cells need some cholesterol but too much cuz it can cause problems. HDL carries cholesterol to your liver, where it can be removed from the body.so it helps protect your heart from atherosclerosis

Explanation:

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In a certain industrial process involving a heterogeneous catalyst, the volume of the catalyst (in the shape of a sphere) is 10.

mamaluj [8]

Answer:

Explanation:

We know that the

reaction catalyzing power of a catalyst ∝ surface area exposed by it

Given

volume V1= 10 cm^3

⇒ $\frac{4}{3} \pi r^3= 10$

hence r= 1.545 cm

also, surface area S1= $4\pi r^2$

now when the sphere is broken down into 8 smaller spheres

S2= 8×4πr'^2

now, equating V1 and V2 ( as the volume must remain same )

$\frac{4}{3}\pi r^3=8\times\frac{4}{3} \pi r'^3$

and solving we get

r'= r/2

therefore, S2= $8\times4\pi\frac{r}{2}^2$

S2= $2\times4\pi r^2$

S2= 2S1

hence the correct answer is

. The second run has twice the surface area.

8 0

3 years ago

Water is a solute. solvent.

Finger [1]

Answer:

solvent

Explanation:

3 0

3 years ago

Why do molecular compounds have low melting points and low boiling points relative to ionic substances?

kap26 [50]

Answer:

The melting and boiling points of molecular compounds are generally quite low compared to those of ionic compounds. This is because the energy required to disrupt the intermolecular forces between molecules is far less than the energy required to break the ionic bonds in a crystalline ionic compound

4 0

3 years ago

Which forces can be classified as intramolecular?

just olya [345]

Answer:

D) Covalent Bonds

Explanation:

Quizlet says so

7 0

3 years ago

Read 2 more answers

What mass of oxygen gas is consumed in a reaction that produces 4.60 mol sulfur dioxide?

babunello [35]

Answer:

jsjdhiefjcbjajrjrjwbxjuq ueei1udj

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2 years ago

Why we need blood cholesterol?​

Why we need blood cholesterol?