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4 years ago

5

Based on the information given below, about how many trips around the Milky Way has the Sun made since the emergence of life on

Earth?

1 answer:

miss Akunina [59]4 years ago

3 0

It has oribited the milky way more then 20 times

You might be interested in

Which terms are used to identify pure substances

Semenov [28]

Answer:

Color, odor, density, melting temperature, boiling temperature, and solubility are examples of physical properties. Physical properties can be used to identify a pure substance.

Explanation:

please mark brainliest! :)

and have a great day! :>

3 0

3 years ago

Read 2 more answers

Consider the system at equilibrium. 2 H 2 ( g ) + S 2 ( g ) − ⇀ ↽ − 2 H 2 S ( g ) How will increasing the concentration of S 2 s

borishaifa [10]

Answer:

1) the balance will shift to the right

2) the balance will shift to the left

3) There will be no effect on the position of the equilibrium.

Explanation:

Step 1: Data given

The Principle of Le Chatelier says 'If the concentration of one of the reaction partners changes, the balance will shift to counteract that concentration change.

Step 2: The balanced equation

2H2(g) + S2(g) ⇆ 2H2S(g)

Step 3: How will increasing the concentration of S2 shift the equilibrium?

If the S2 concentration is increased, the system will attempt to undo that change in concentration by shifting the balance to the right, and so the H2S concentration will increase.

Step 4: How will increasing the concentration of H2S shift the equilibrium?

If the H2S concentration is increased, the system will attempt to undo that change in concentration by shifting the balance to the left, and so the H2 and S2 concentration will increase.

Step 5: How will adding a catalyst shift the equilibrium?

Reactions can be sped up by the addition of a catalyst.

In the presence of a catalyst, both the forward and reverse reaction rates will speed up equally, thereby allowing the system to reach equilibrium faster.

Adding a catalyst makes absolutely no difference to the position of equilibrium.

6 0

4 years ago

All of the following are factors that affect the rate of a reaction except _____ A) the concentration of the reactants. B) prese

Dmitry_Shevchenko [17]

The rate of a reaction is not affected by C) the magnitude of the equilibrium constant.

<h3>What is the rate of a reaction?</h3>

The rate of a reaction is the speed at which a chemical reaction takes place, defined as proportional to the increase in the concentration of a product per unit time and to the decrease in the concentration of a reactant per unit time.

Let's consider which of the following factors affect the rate of a reaction.

A) the concentration of the reactants. YES. The relationship between the concentrations of the reactants and the reaction rate depends on the reaction orders.
B) presence of a catalyst. YES. Positive catalysts increase the reaction rate whereas negative catalysts decrease it.
C) the magnitude of the equilibrium constant. NO. The equilibrium constant does not affect the reaction rate.
D) the temperature of the reaction. YES. Usually, the higher the temperature, the faster the reaction.
E) the surface area of the solid reactants. YES. The more surface area exposed to react, the faster the reaction.

The rate of a reaction is not affected by C) the magnitude of the equilibrium constant.

Learn more about the rate of a reaction here: brainly.com/question/24795637

3 0

2 years ago

Select all the correct answers.

Vlad [161]

D a baiiiiiiiiii good luck

5 0

3 years ago

White wash suspension, a saturated solution of ca(oh)2, has a ph of 12.37. what is ksp for ca(oh)2?

SSSSS [86.1K]

Find the $pOH$ from $pH$

$pH + pOH =14\\pOH= 14-pH = 14-12.37 = 1.63$

The $KSP$ value of $ca(oh)^{2}$ is

$ca(oh)^{2} -- > ca^{2} + (aq) +2OH^{-} \\ksp = 4s^{3}$

The value finally becomes,

$ksp = 5.15 * x=10^{-5}$

<h3>What are the properties of Saturated solution ?</h3>

A saturated solution is one that contains all of the solute that can possibly dissolve in it. The most sodium chloride that may dissolve in $100 g$ of water at $20$ °C is $36.0 g$ . Past that point, adding more $NaCl$ won't cause it to dissolve because the solution is already saturated.

The solution reaches a point when it is saturated. This indicates that if you add more of the substance, it will stop dissolving and instead stay solid. The amount depends on how the solvent and solute interact molecularly.

To learn more about saturated solution, visit

brainly.com/question/9414660

#SPJ4

5 0

1 year ago