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3 years ago

3. If opposing forces acting on an object are equal, the net force is_____

Chemistry

1 answer:

marin [14]3 years ago

4 0

[A] 0

When opposing forces act on an object, this means that the object isn't moving at all. This is also known as a "balanced force." If the forces of the same and you add them together the answer is 0.

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what type of element can turn into both solid and liquid form depending on the temperature of its surroundings ?

lorasvet [3.4K]

Answer:

An Atom can turn into both solid and liquid form depending on the temperature of its surroundings

Explanation:

Scientists have discovered a new state of physical matter in which atoms can exist as both solid and liquid simultaneously. Researchers have found, however, that some elements can, when subjected to extreme conditions, take on the properties of both solid and liquid states.

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3 years ago

Read 2 more answers

Find the equilibrium value of [CO] if Kc=14.5 : CO (g) + 2H2 (g) ↔ CH3OH (g) Equilibrium concentrations: [H2] = 0.322 M and [CH3

Annette [7]

Answer:

The equilibrium value of [CO] is 1.04 M

Explanation:

Chemical equilibrium is the state to which a spontaneously evolving chemical system, in which a reversible chemical reaction takes place. When this situation is reached, it is observed that the concentrations of substances, both reagents and reaction products, they remain constant over time. That is, the rate of reaction of reagents to products is the same as that of products to reagents.

Reagent concentrations and products in equilibrium are related by the equilibrium constant Kc. Being:

aA + bB ⇔ cC + dD

$Kc=\frac{[C]^{c} *[D]^{d} }{[A]^{a} *[B]^{b} }$

Then this constant Kces equals the multiplication of the concentrations of the products raised to their stoichiometric coefficients between the multiplication of the concentrations of the reactants also raised to their stoichiometric coefficients.

In this case:

$Kc=\frac{[CH_{3}OH ]}{[CO]*[H_{2} ]^{2} }$

You know:

Kc= 14.5
[H₂]= 0.322 M
[CH₃OH] =1.56 M

Replacing:

$14.5=\frac{1.56}{[CO]*0.322^{2} }$

Solving:

$[CO]=\frac{1.56}{14.5*0.322^{2} }$

[CO]= 1.04 M

The equilibrium value of [CO] is 1.04 M

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3 years ago

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kozerog [31]

Answer:

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Explanation:

0.05 L*1.0M= 0.05 mol HClO2 and 0.05 mol NaOH

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0.05 mol 0.05 mol

As we can see acid and base react completely, solution will be neutral, so pH =7

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Lapatulllka [165]

Answer:

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Explanation:

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3 years ago

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aleksklad [387]

Binary compounds are easy to name. The cation is always named first and gets its name from the name of the element. For example, K+ is called a potassium ion. An anion also takes its name from its element, but it adds the suffix -ide to it.

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