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lianna [129]
3 years ago
14

What cells in living organisms are diploid

Chemistry
1 answer:
Pavlova-9 [17]3 years ago
5 0

Question

<em>what cells in living organisms are diploid?</em>

Answer:

<em>Most mammals are diploid organisms, which means they have two homologous copies of each chromosome in the cells. In humans, there are 46 chromosomes. In most diploid organisms, every cell except for gametes will be diploid and contain both sets of chromosomes.</em>

Hope this helps!

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Explanation:

When heat is absorbed by reactants in a chemical reaction then the reaction is known as endothermic reaction.

Whereas when heat is released by reactants in a chemical reaction then the reaction is known as exothermic reaction.

1. When \Delta H is positive then it means heat is absorbed by reactants and reaction is endothermic.

2. When E_{2} < E_{1}, this means energy of products is less than the energy of reactants. Therefore, it is exothermic in nature.

3. When energy is absorbed then reaction is endothermic.

4. When E_{2} > E_{1}, this means energy of products is greater than the energy of reactants. Therefore, it is endothermic in nature.

5. When [tex]\Delta H is negative then it means heat is released by reactants and reaction is exothermic.

4 0
3 years ago
The smallest group of particles in a crystal that retains the shape of the crystal is called the
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The answer is B. Unit cell.
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The decomposition of hydrogen peroxide, H2O2, has been used to provide thrust in the control jets of various space vehicles. Usi
Genrish500 [490]

Answer:

The heat released is 56.7 kJ.

Explanation:

To solve this problem, first we need to find out the standard enthalpy of reaction, that is, the energy released at constant pressure in standard conditions (P=1bar, T=298.15K). We can find it using the expression:

ΔH°r = Σn(p).ΔH°f(p) - Σn(r).ΔH°f(r)

where,

n refers to the number of moles of reactants and products in the balanced equation

ΔH°f refers to standard enthalpies of formation (which can be found in tables).

Given the equation:

2 H₂O₂(l) → 2 H₂O(g) + O₂(g)

We can replace with the proper data in the equation:

ΔH°r = Σn(p).ΔH°f(p) - Σn(r).ΔH°f(r)

ΔH°r= [2 mol . ΔH°f H₂O(g) + 1 mol . ΔH°f O₂(g)] - [2 mol .  ΔH°f H₂O₂(l)]

ΔH°r= [2 mol . (-241.8 kJ/mol) + 1 mol . 0 kJ/mol] - [2 mol . (-187.8 kJ/mol)]

ΔH°r = -108.0 kJ

Since enthalpy is an extensive property, it depends on the amount of reagents. In this case, 108.0 kJ of heat are released every 2 moles of H₂O₂(l) decomposed. Then, for 1.05 mol of H₂O₂(l):

1.05 mol.\frac{-108.0kJ}{2mol} =-56.7kJ

By convention, the negative sign means that heat is released.

5 0
3 years ago
What was the impact of the british clean air act of 1956
Sladkaya [172]
The correct answer in here is: Limited the burning of soft coal. Some reasons for that are that when Britain was the workshop of the world its coal consumption increased from around 10 million tons per annum in 1800 to almost 200 million tons in 1950 and also that <span>Coal smoke was linked to very high death rates from respiratory diseases such as bronchitis, killing between 800,000 and 1.4 million people in the period 1840-1900.</span>
8 0
3 years ago
You are preparing a solution of lithium bromide to use during an experiment. The experiment calls for 909.7 mL a 18 M solution.
Zielflug [23.3K]

Answer:

16.37 moles of  lithium bromide.

Explanation:

909.7 mL of 18 M

= .9097 L of 18 M solution of lithium bromide .

no of moles required = .9097 x 18

= 16.37 moles of  lithium bromide.

4 0
3 years ago
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