what is this can any body answer

Answer:

prophase,

Explanation:

during which the nucleus dissolves and the chromosomes begin migration to the midline of the cell.

The first step of cell division is known as prophase, during which the nucleus dissolves and the chromosomes start the migration to the cell.

Cell division can be described as the process by which a parent cell divides into two daughter cells. Cell division takes place as part of a cell cycle in which the cell grows and replicates chromosome(s) before dividing.

In eukaryotes, there are two types of cell division: a vegetative division (mitosis), producing daughter cells genetically similar to the parent cell, and a cell division that forms haploid gametes for sexual reproduction (meiosis), decreasing the number of chromosomes from two of each kind in the diploid parent cell to one of each kind in the daughter cells.

The phases of cell division are interphase, Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis.

In the Prophase,  the nuclear envelope will be broken down and chromatin condenses to produce shorter more visible strands known as chromosomes.

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Answer:

2Mg(s) + O2(g) - >2MgO(s)

Answer:

The model is missing plants, fish and other details found in a real river

The model is much smaller then a real river

Explanation:

Answer:

The model is missing plants, fish and other details found in a real river

The model is much smaller then a real river

Explanation:

Answer:

Cd is oxidized during the discharge of the battery

Explanation:

Based on the reaction:

2 NiOOH + Cd + 2H₂O → 2Ni(OH)₂ + Cd(OH)₂

And knowing Oxygen and hydrogen never change its charge, we must to find oxidation state of Ni and Cd before and after the reaction:

Ni:

In NiOOH: 2 O = -2*2 = -4 + 1H = +1, = -4 + 1 = -3. And as the molecule is neutral, Ni is 3+

In Ni(OH)₂: OH = -1. As there are 2 OH = -2. That means Ni is +2

The Ni is gaining one electron, that means is been reduced

Cd:

Cd before reaction is as pure solid with oxidation state = 0

Cd after the reaction is as Cd(OH)₂: 2 OH = -2. That means Cd is +2

The Cd is loosing 2 electrons, that means is the species that is oxidized.

Answer:

Explanation:

in the Lewis structure of ICl4- there are total of 36 valence electrons. Since Iodine (I) is below Period 3 on the periodic table it can hold more than 8 electrons. ... Also note that you should put the ICl4- Lewis structure in brackets with as 1- on the outside to show that it is an ion with a negative one charge.

The formal charge present on the iodine atom of ICl₄ is -1.

Formal charge on any atom present in any compound will be calculated by using the below formula:

Formal Charge = (No. of valence electrons in neutral atom) - 1/2 (No. of electrons in covalent bond) - (No. of electrons in lone pair)

In the structure of ICl₄, 4 covalent bonds are present and for iodine atom no. of valence electrons in iodine is 7 and lone pair present on iodine is 2 means 4 electrons of lone pair is present. Structure is shown in the attached image.

On putting these values we get,

Formal charge = 7 - 1/2(8) - 4 = -1

Hence in iodine atom -1 charge is present.

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Answer: Favourable conditions for the formation of ionic bond are low  ionization energy of metal and high electronegativity of non-metal.

Explanation: An ionic bond is defined as the bond formed due to transfer of one or more number of electrons from one atom to another.

Answer: Favourable conditions for the formation of ionic bond​ are low ionization energy of metal and high electronegativity of non-metal. Explanation: An ionic bond is defined as the bond formed due to transfer of one or more number of electrons from one atom to another

hope this helps, sorry if im off

Answer:

C+O2=CO2

Explanation:

During combustion the reaction is formed.

Answer:

21 g/mL

Explanation:

To solve this problem, first look at the density equation, which is D=M/V, which D stands for density, M stands for mass, and V stands for volume. When you substitute in the variables, you get D=17.5/.82, which is equivalent to 21.34. However, since we need to pay attention to the sig fig rules for multiplying, we need to have the same amount of sig figs as the value with the least amount of sig figs, which is the number .82. .82 has two sig figs, so you round down. Your answer will be 21 g/mL.

Answer: 8

Explanation: just took the mastery test

The formation of molecule can easily be shown by drawing Lewis dot structure. Since atom's Lewis dot structure has three dots. Therefore, eight  lone pairs of electrons are represented in the Lewis structure of a nitrate ion (NO₃⁻).

Lewis dot structure is a way to represent the valence electron of an element in the form of dot. These are mainly beneficial in understanding the chemical formula of covalent compound.

3 oxygen (O) atoms and a nitrogen (N) atoms make up basic Lewis dot of a nitrate [NO₃]⁻ ion. The molecular ion has a nitrogen (N) atom in its core and three oxygen (O) atoms, one on each side, at terminal positions.

Therefore, eight  lone pairs of electrons are represented in the Lewis structure of a nitrate ion (NO₃⁻).

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Answer:

6078

Explanation:

Answer:

B

Explanation:

Answer: B.) the strand that assembles new nucleotides in a continuous fashion

Explanation: edgenuity

Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

[tex]volume = \frac{mass}{Density} [/tex]

From the question

mass of Iron = 1500 g

Density = 5.5 g/mL

Substitute the values into the above formula and solve

That's

[tex]volume = \frac{1500}{5.5} \\ = 272.727272...[/tex]

We have the final answer as

Hope this helps you

Explanation:

To solve that deadlock problem, in 1913 Bo kept Rizopho's model of planetary atom and combined with Plang quantum theory, he produced a hydrogen atom model with the following three determinations: - In atoms, The clectron cannot orbit any other, but only rotates with a certain number of orbits. Each "allowed" orbit is equivalent to a certain energy. - When rotating in "allowed" orbits, electrons do not lose energy, meaning they do not emit radiation, but emit radiation only when the electron jumps from an orbit with the high energy level in the orbit corresponding to the the low energy and the household energy of radiation are equal to the difference of the two energy levels. - - When rotating in those "allowed" orbits, the electron has a momentum moment that is an integer times of h / (2π).

Answer:

JUST B

Explanation:

Answer:

1.proton

2.nucleus

3. electrons

4.nucleus??

5. protons and neutrons

6. electrons

7.neutrons

Explanation:

Answer:

mineral

Explanation:

Because every natural thing has mineral

Answer:

  about 40

Explanation:

In the attached diagram, there are 5 hydrophobic molecules show, each of which has 9 water molecules shown around it. There are "about 40" water molecules 'stuck' to the hydrophobic molecules.

Answer:

105

Explanation:

round 104 to the nearest whole number...since 7 is greater than 5 4 goes up..but if 7 is less than 5,4 remains the same

living thing need water to survive

and food to get energy and perform life processes.

and living organism need space to gets the energy and materials it needs

Answer:

by throwing away or recycle

Explanation:

Answer:

You have to change the number of protons in the nucleus. While it is possible, it requires bombarding and putting together elements, which creates high energy particle accelerators.

Answer:

the volume of a set of keys is 6.75ml

Explanation:

Answer 1-4

1. Cr(NO2)3

2. AlCl3

3. Na2CO3

4. Ba(OH)2

Answer:

19-24 cm

Explanation:

Answer:

the answer is 19-24 cm

Explanation:

i did the study island

Answer:

Independent variable - Piece of bread

Dependant variable - Moistness of brownie

Constants- Same size and location of brownie

Hypothesis - IF a piece of bread is added to a brownie container, THEN the brownie will be moister

Control groups- The set of brownie containers she adds no piece of bread to

Experimental group- The set of brownie containers she adds a piece of bread to

Explanation:

The hypothesis in an experiment is a testable explanation to a given problem, which is whether a piece of bread can make brownie moist in this question. Hence, a possible hypothesis will be: IF a piece of bread is added to a brownie container, THEN the brownie will be moister

Independent variable is the variable that the experimenter changes or manipulates in the experiment. In this case, the independent variable is the PIECE OF BREAD added to the brownie.

The dependent variable is the variable that is being measured in an experiment. The dependent variable in this case is the MOISTNESS of the brownie

Constants are variables that the experimenter keeps unchanged for all the groups throughout the experiment. In this case, the constants are SAME SIZE AND LOCATION OF BROWNIE.

Control group is the group that does not receive the experimental treatment or independent variable while the experimental group is the group that receives the experimental treatment. The control group in this experiment is: The set of brownie containers she adds no piece of bread to, while the experimental group is the: The set of brownie containers she adds a piece of bread to

Answer:

glucose + fructose is a reactant, sucrose + water is a product

Explanation:

The first part of the equation is a reactant(s), and the other part of the equation is the product(s).