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Pani-rosa [81]
3 years ago
5

Explain what takes place during the G2 phase of the cell cycle.

Chemistry
1 answer:
mrs_skeptik [129]3 years ago
8 0

Answer:

The cell's DNA is replicated during the S stage as the first step to engaging in mitosis. Once DNA replication is complete, the cell enters the second gap stage, G2. During G2 the correct duplication of the DNA is verified and cell proteins necessary for cell division are produced.

Explanation:

Hope this is helpful

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Most minerals on Earth's surface contain which of the following​
Hitman42 [59]

B:Oxygen and silicon

Explanation:

Most minerals on the earth's surface contains oxygen and silicon. Silicon and oxygen are the most abundant elements we find in the rock minerals on the earth surface.

  • Silicon and oxygen forms the SiO₄⁻ tetrahedron through which several minerals are formed.
  • These minerals built on the network of the tetrahedron are referred to as silicates.
  • Several silicate minerals are known:
  1. Quartz
  2. Feldspars
  3. Olivine
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Learn more:

Silicates brainly.com/question/4772323

#learnwithBrainly

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3 years ago
A hot lump of 36.2 g of iron at an initial temperature of 62.0 °C is placed in 50.0 mL of H2O initially at 25.0 °C and allowed t
Viefleur [7K]
Temperature of 62.0 °C is placed in 50.0 mL of H2O initially at 25.0 °C and allowed to reach thermal equilibrium
7 0
2 years ago
The coefficients in a chemical equation represent the
expeople1 [14]

Answer:

  • <em>The coefficients in a chemical equation represent the </em><u>relative number of moles of each reactant and product that interven in the chemical reaction.</u>

Explanation:

The <em>coefficients</em> are the numbers that you put in front of each chemical formula that represents the reactants and products in the <em>chemical equation</em>. They indicate the mole ratio in which the elements or compounds react to form the products, as per the chemical equation.

See an example:

  • Word equation: hydrogen and oxygen produce water

  • Chemical (skeleton) equation: H₂ (g) + O₂(g) → H₂O (g)

      This equation is not balanced: the  number of atoms of oxygenin the reactant side is 2 while the number of atoms of oxygen isn the product side is 1. In order to balance the equation you need to add some coefficients.

When no coefficients are shown it is understood that the coefficient is 1.

  • Balanced chemical equation: 2H₂ (g) + O₂(g) → 2H₂O (g)

The coefficients 2 in front of H₂ and 1 (understood) in front of O₂, in the reactant side, and 2 in front of H₂O, in the product side, balance the equation.

Those coefficients mean that the 2 molecules (or mole of molecules) of H₂ react with 1 molecule (or mole of molecules) of O₂ to form 2 molecules (or moles) of H₂O (product side).

That is the mole ratio: 2 H₂ : 1 O₂ : 2 H₂O.

Notice that, in spite of the aboslute numbers may change, the mole ratio is unique for any chemical reaction.  For example 4 : 2 : 4 is the same ratio that 2 : 1 : 2, or 8 : 4 : 8, but the most common practice is to use the most simple form of the ratio, i.e. 2: 1: 2.

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2.a)R b)R c)L d)L e)R f)L g)L
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An electron that is in the highest energy level of an atom and determines the atom's chemical properties is called a(n)
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The answer is C: Valence electron
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