3 years ago

Why is thinking of a homework plan is not a form of work?

Chemistry

1 answer:

fredd [130]3 years ago

8 0

This don’t make sense ??

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Is c7h16+o2→co2+8h2o+7co2 a balanced equation

erik [133]

<span>C7H16 + 11 O2 = 7 CO2 + 8 H2O

If you write it like this then it is balanced.</span>

7 0

3 years ago

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

Identify the oxidizing and reducing agent in the following reaction, and determine which element is oxidized and which is reduce

erma4kov [3.2K]

Answer:

Explanation:

Fe⁺²(aq) + ClO₂(aq) → Fe⁺³(aq) + ClO₂⁻(aq)

Here oxidation number of Fe is increased from +2 to +3 , so Fe is oxidised .

The oxidation number of Cl is reduced from + 4 to +3 so Cl is reduced .

So ClO₂(aq) is oxidising agent and Fe⁺²(aq) is reducing agent .

8 0

3 years ago

Which of the following is true about subatomic particles?

galben [10]

Answer:

Explanation:

neutrons and protons have the mass nearly 1.67*10-24 g

but neutrons have no charge.. protons are positively charged

6 0

2 years ago

Consider the balanced equation below

Svet_ta [14]

PCl₃ + Cl₂ = PCl₅

1:1

3 0

3 years ago

Read 2 more answers