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Neko [114]
3 years ago
9

N which parts of the cell cycle would chromosomes be paired up? Check all that apply.

Chemistry
1 answer:
Kitty [74]3 years ago
4 0

Answer:

The correct option es interphase

Explanation:

The interface is a stage of the cell division where a lot of energy is demanded, and it is the longest of the entire cycle.

This is because it is here where the duplication of the genetic load is generated, that is, of the chromosomes.

The chromosomes reach the cell poles and this is how a contraction begins to appear in the middle of the cell, it is essential to clarify that the interface not only requires energy but also occupies 95% of the cell division.

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The general form of a chemical reaction is XA plus YB yields ZAB in the equation a and B or elements in the XYNZ are coefficient
Katarina [22]

Answer:The mole ratio is A:B:A+B

Explanation:when substance reacts according to John Dalton's theory,their combining ratio is often a replica of the combining moles of the reactants and that of the products. So when Amoles of X combines withB moles of Y ,they produce A+B moles of XY to get a balance reaction e.g if 1moles of X2 reacts with 1moles of Y2 to form XY

The balance equation is seen as

X2+Y2_____2XY

4 0
3 years ago
How is a heterogeneous mixture different from a homogeneous mixture?
MArishka [77]
A homogeneous mixture<span> has the same uniform appearance and composition throughout. Many </span>homogeneous mixtures<span> are commonly referred to as solutions. A </span>heterogeneous mixture <span>consists of visibly </span>different<span> substances or phases. The three phases or states of matter are gas, liquid, and solid. Now this is my answer. So revise it a little. You dont want plagiarism </span>
6 0
3 years ago
13. Describe briefly how you figured out what the name of the element is:
zloy xaker [14]
Answer:
13) between the nucleus, there is a proton and electron number given, (looking at the periodic table, it gives you the name of the element)

14) an ion, in any element has a POSITIVE charge no matter what.. the numbers depend on what it element the ion is with..
7 0
3 years ago
Create a chart that compares physical and chemical properties. Give two examples for each type of property
Zinaida [17]

<em>Answer:</em>

<em>Chemical properties:</em>

Those properties which change the chemical nature of matter.

<em>Example:</em>  

  •       Heat of combustion
  •       Enthalpy of formation

<em>Physical properties:</em>

Those properties which do not change the chemical nature of matter.

<em>Example</em>

  • B.P
  • M.P
  • F.P

<em>Differences between chemical and physical properties:</em>

       Chemical properties                                       Physical properties

1. Observed after the change bringing           1. Observed with out being

the change                                                            change

2. These changes the molecules                    2. only change physical state

3. Chemical identity changes                          3.Chemical identity not changes

4. Structure of material changes                     4.Structure of material not change            

5. Chemical reaction is needed                       5. No need of Chemical reaction

6. depend on composition                           6. Does not depend on composition

3 0
3 years ago
The major source of aluminum in the world this bauxite (mostly aluminum oxide). It’s thermal decomposition can be represented by
Artyom0805 [142]

Answer:

The correct answer is 32.2 grams.

Explanation:

Based on the given information, the enthalpy of formation for aluminum oxide is 1676 kJ/mol. It signifies towards the energy that is required to generate aluminum and oxygen, and both of these exhibit zero enthalpy of formation. Therefore, the ΔHreaction is the required energy to generate 2 moles of aluminum. Thus, the energy needed for the formation of single mole of aluminum is,  

ΔHrxn = 1676/2 = 838 kJ/mol

Q or the energy input mentioned in the given case is 1000 kJ. Therefore, the number of moles of Al generated is,  

(1000 kJ) / (838 kJ/Al mole) = 1.19 moles of Aluminum

The grams of aluminum produced can be obtained by using the formula,  

mass = moles * molecular mass

= 1.19 * 26.98

= 32.2 grams.  

7 0
3 years ago
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