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3 years ago

How many steps to complete mitosis and meiosis??

Chemistry

2 answers:

dangina [55]3 years ago

7 0

Mitosis has 4 steps and meiosis has 5 steps so its 9 steps total here's a photo to help you if you need it

NemiM [27]3 years ago

5 0

Mitosis: Prophase, Metaphase, Anaphase, Telophase

Meiosis: Prophase I, Metaphase I, Anaphase I, Telophase I, Prophase II, Metaphase II, Anaphase II, Telophase II

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Which statement best describes what happens as thermal energy from the

salantis [7]

Answer:

Explanation:

The correct answer would be that the thermal energy of the sun is transferred to the pavement.

Thermal energy refers to the internal energy possessed by a system by virtue of the movement of molecules within such a system. In other words, it is the heat energy possessed by a system.

When the thermal energy from the sun warms the pavement, it means that the thermal energy from the sun has been successfully transferred to the pavement. Thermal energy can be transferred by conduction, convection, or by radiation depending on whether the system is a solid, liquid, gas respectively.

The correct option is, therefore, D.

6 0

3 years ago

If you have 30 grams of oxygen, how many atoms are present?

umka21 [38]

Answer:

1 × 10²⁴ atoms O

General Formulas and Concepts:

Chemistry - Atomic Structure

Reading a Periodic Table
Using Dimensional Analysis
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Explanation:

Step 1: Define

30 g O

Step 2: Identify Conversions

Avogadro's Number

Molar Mass of O - 16.00 g/mol

Step 3: Convert

$30 \ g \ O(\frac{1 \ mol \ O}{16.00 \ g \ O} )(\frac{6.022 \cdot 10^{23} \ atoms \ O}{1 \ mol \ O} )$ = 1.12913 × 10²⁴ atoms O

Step 4: Check

We are given 1 sig fig. Follow sig fig rules and round.

1.12913 × 10²⁴ atoms O ≈ 1 × 10²⁴ atoms O

3 0

3 years ago

A reaction that involves reagent X as the limiting reagent is begun with an initial concentration of 0.732-M X. The reaction rea

katovenus [111]

Answer:

The answer to the question is 0.0122 m/s

Explanation:

The rate of a reaction is the measure of the change in concentration of a reagent within a specific time frame. Reaction rate of a substance can be calculated by finding the division of the concentration change of the substance and the time required to undergo the change in concentration.

$Average reaction rate \frac{Change in the moles count of X}{Change in time} =$

The initial number of moles of X = 0.732 moles and final number of moles of X = 0 moles and the time it took to effect the change = 60s

then the rate of reaction = $\frac{0.732}{60}$ = 0. 0122 moles per second

the rate of the reaction involving X = 0.0122 m/s

7 0

4 years ago

Element X is a solid that is brittle, lacks luster, and has six valence electrons. In which group on the Periodic Table would el

salantis [7]

It is group 16. That is, Chalcogens. They call it the oxygen family.

8 0

3 years ago

Read 2 more answers

Two or more substances in variable proportions, where the composition is variable throughout are a a homogeneous mixture. b a so

REY [17]

Answer: In heterogeneous mixture, the composition remains variable throughout.

Explanation:

For the given options:

Homogeneous mixtures are defined as the mixtures that appears uniformly throughout the solution and the particle size or shapes are not different. The composition remains constant throughout.

A solution is defined as the solution in which the components gets completely dissolved in it. Particles are evenly spread in these solutions. These solution does not scatter light falling on it. The composition remains constant throughout.

An amorphous solid is defined as the solid in which the constituent particles of the matter are arranged in the random manner. The composition remains constant throughout.

A heterogeneous mixture is defined as the mixture in which component are unevenly spread throughout the solution. The size and shape of the particles differ in these mixtures. These mixture scatter the light falling on it. The composition do not remains constant throughout.

Compound is defined as the chemical specie which is formed by the combination of two or more different type of atoms. For Example: $H_2O,O_2$ etc...The composition remains constant throughout.

Hence, in heterogeneous mixture, the composition remains variable throughout.

4 0

4 years ago