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lina2011 [118]
3 years ago
12

During which era did the first fish evole

Biology
1 answer:
Semenov [28]3 years ago
4 0
During the cambrian explosion
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Cl2 +<br> KI →<br> KCI + Iz<br> what the balance?
Lunna [17]
<h3>Answer:</h3>

Cl₂ + 2KI → 2KCI + I₂

<h3>Explanation:</h3>

<u>We are given;</u>

  • Unbalanced equation;

Cl₂ + KI → KCI + I₂

We are required to balance the equation;

First we need to understand what is a balanced equation?

  • A balanced equation is an equation that has equal number of atoms of each elements on the side of reactants and that of the products.

Second; Why is it important to balance chemical equations?

  • Chemical equations are balanced so as to obey the law of conservation of mass.
  • According to the law of conservation of mass, the mass of products should be equivalent to the mass of reactants.

How do we balance equations?

  • We balance chemical equations by putting appropriate coefficients on the reactants and products.

Therefore, in this case;

  • The balanced equation  will be;

Cl₂ + 2KI → 2KCI + I₂

7 0
3 years ago
What property of DNA does bacterial transformation illustrate.
Svetach [21]
The property of DNA has alot of common Bacterial transformation.....
3 0
4 years ago
Which statement is most true concerning carbon in sediments and rocks? ncdc.noaa.gov They receive the same amount from the ocean
VikaD [51]

the correct answer would be they receive the same amount from the ocean as they release to the atmosphere

hoped this helped have a great day :)

8 0
3 years ago
Can you please tell me an explanation of what happens during the metaphase stage of mitosis?
Goshia [24]
Sure! The metaphase stage in the cel is the third step in mitosis. The chromosomes line up in the middle of the cell due to the fact that the spindle fibers pull them towards the middle (the chromosomes are in a single file line). In addition, the spindle fibers connect to the centromeres. Hope this helps :)
7 0
3 years ago
A car traveling at 60 mph has how much more energy than a car going at 20 mph? K.E. increases by a factor of there is no increas
inn [45]

Answer:

Assuming that the masses of the cars are the same

9 times

Explanation:

Kinetic energy can be computed using the formula:

KE = \dfrac{mv^{2}}{2}

Where:

KE = Kinetic energy

m = mass

v = velocity

As you can see in your problem, the velocity of the the first car mentioned is 3 times faster.

Looking at the the formula, velocity is raised to two (2). So if we put it in terms of equations this is how it will look:

Let v = velocity of the slower car

Car 1: velocity = (3v)

KE=\dfrac{mv^{2}}{2}

KE=\dfrac{(m)(3v)^{2}}{2}

KE=\dfrac{(m)9v^{2}}{2}

The increase is by a factor of 9.

6 0
3 years ago
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