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avanturin [10]
3 years ago
9

Im found a tool in his father’s toolbox and was curious about what it is used for. What does this tool do?

Chemistry
2 answers:
Lisa [10]3 years ago
7 0

Answer:

option A

Explanation:

the correct answer is option A

the shown in the figure is known as micrometer screw gauge.

micrometer screw gauge is used fro measuring the thickness of the instruments, diameter of coins , length of the small material and many more.

micrometer screw gauge work with more precision because it can measure v small measurement

uranmaximum [27]3 years ago
5 0
It measures the length
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3 0
3 years ago
For the following reaction, KcKc = 255 at 1000 KK.
bonufazy [111]

Answer :

The equilibrium concentration of CO is, 0.016 M

The equilibrium concentration of Cl₂ is, 0.034 M

The equilibrium concentration of COCl₂ is, 0.139 M

Explanation :

The given chemical reaction is:

                           CO(g)+Cl_2(g)\rightleftharpoons COCl_2(g)

Initial conc.      0.1550      0.173           0

At eqm.          (0.1550-x)  (0.173-x)         x

As we are given:

K_c=255

The expression for equilibrium constant is:

K_c=\frac{[COCl_2]}{[CO][Cl_2]}

Now put all the given values in this expression, we get:

255=\frac{(x)}{(0.1550-x)\times (0.173-x)}

x = 0.139 and x = 0.193

We are neglecting value of x = 0.193 because equilibrium concentration can not be more than initial concentration.

Thus, we are taking value of x = 0.139

The equilibrium concentration of CO = (0.1550-x) = (0.1550-0.139) = 0.016 M

The equilibrium concentration of Cl₂ = (0.173-x) = (0.173-0.139) = 0.034 M

The equilibrium concentration of COCl₂ = x = 0.139 M

5 0
2 years ago
Why are invasive species such a huge threat to ecosystems?
Varvara68 [4.7K]

Answer:

C

Explanation:

invasive species can do intense damage so much that ecosystems may not be able to recover.

8 0
2 years ago
For a reaction Y → X with a very high equilibrium constant, K, which of the following is true? You can refer to the following tw
Dafna11 [192]

Answer:The amount of product will be higher than the amount of substrate at equilibrium

Explanation:

Recall that the equilibrium constant K depends on the amounts of reactants and products present in the system at equilibrium.

Considering the equation; K = [X]/[Y], as the concentration of X increases above that of Y, the equilibrium constant K becomes very high, hence the answer above.

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3 years ago
The amount of attraction between two masses depends on:
Zinaida [17]

Answer:

The strength of the gravitational force between two objects depends on two factors, mass and distance.

5 0
3 years ago
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