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Rudik [331]
4 years ago
15

Please help me answer this it’s due today. I will give brainliest

Chemistry
1 answer:
WARRIOR [948]4 years ago
5 0

Answer: X should represent H, hydrogen.

Explanation:

The H is the only one that hasnt been stated in the left side of the formula. H has three atoms as well.

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An elastic band with a spring constant of 62 N/m is extended by 0.15 m. What is the force applied to the rubber band?
Ymorist [56]

Answer:

the force applied to the rubber band is -9.3N

Explanation:

The computation of the force applied to the rubber band is shown below;

We know that

Force in newtons = Spring constant × amount of extension

F = -k × x

where

-k = 62 N/m

And, x = 0.15m

So, the force applied is

= -62N/m × 0.15m

= -9.3N

hence, the force applied to the rubber band is -9.3N

4 0
3 years ago
Read 2 more answers
In a certain industrial process involving a heterogeneous catalyst, the volume of the catalyst (in the shape of a sphere) is 10.
olga nikolaevna [1]

Answer:

a. The second run will be faster.

d. The second run has twice the surface area.

Explanation:

The rate of a reaction is proportional to the surface area of a catalyst. Given the volume (V) of a sphere, we can find its surface area (A) using the following expression.

A=\pi ^{1/3} (6V)^{2/3}

The area of the 10.0 cm³-sphere is:

A=\pi ^{1/3} (6.10.0)^{2/3}=22.4cm^{2}

The area of each 1.25 cm³-sphere is:

A=\pi ^{1/3} (6. 1.25)^{2/3}=5.61cm^{2}

The total area of the 8 1.25cm³-spheres is 8 × 5.61 cm² = 44.9 cm²

The ratio of  8 1.25cm³-sphere to 10.0 cm³-sphere is 44.9 cm²/22.4 cm² = 2.00

Since the surface area is doubled, the second run will be faster.

6 0
3 years ago
Aqueous solutions of silver nitrate (agno3) and iron(iii) chloride (fecl3) are mixed together. which ion combines with the chlor
Anna [14]

The answer is that "<span>Ag+</span> ion combines with the chloride ion to form a precipitate".

Silver chloride is formed in the form of precipitates, Ag⁺ is a cation and Cl⁻ is an anion so both ions attract each other and combines to form AgCl.

The equation for the ionic reaction that occurs is;

<span><span>Ag</span></span>⁺(aq)+Cl⁻(aq)→AgCl(s)

7 0
3 years ago
What is the competition and what are the types of symbiosis?
Burka [1]
Symbiosis describes close<span> interactions between two or more different species. There are four main types of symbiotic relationships: mutualism, commensalism, parasitism and competition.</span>
5 0
3 years ago
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Where and when would you come in contact with the element carbon in everyday life?
tatuchka [14]
1st place is in the air !
carbon dioxide has carbon in it and we release it all the time, when we're awake and when were asleep.
another place would be the gas that cars release. this gas is known as carbon monoxide.
7 0
3 years ago
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