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fredd [130]
3 years ago
8

Substance A and substance B combine to form substance C. Three illustrations of 3-D atomic structures of substances: substance A

, substance B, and substance C. Substance A and B combine to form substance C. Ask your teacher to describe the illustrations to you. What is substance C? an atom a mixture an element a compound
Chemistry
2 answers:
ANEK [815]3 years ago
8 0

Answer:

To answer this question we need the illustration

Explanation:

You have left the question incomplete since we do not have the illustration making this impossible to answer

Ann [662]3 years ago
4 0
I need some type of illustration
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Witch term refers to a universal fact sometimes nased on mathematical equastions
ss7ja [257]

Answer:

AXIOM.

Explanation:

8 0
3 years ago
Mitosis and Meiosis Lab Report
poizon [28]

Answer:

Mitosis and Meiosis Lab Report

Instructions: In the Mitosis and Meiosis lab, you investigated sexual and asexual reproduction as well as the processes of cellular division by mitosis and meiosis. Record your observations in the lab report below. You will submit your completed report.

________________________________________

Name and Title:  

Mitosis and Meiosis Lab Report.  

Objective(s):  

To learn and explore what mitosis and meiosis is and what they do.  

Hypothesis:

Record your predictions during the zoo tour section of the lab in the data chart.

Procedure:

First, go into the mitosis and meiosis cycles. Then look at what happens when a sex cell from a female tiger is combined with a sex cell from a male tiger. Then investigate what happens when two starfish reproduce asexually. Then write down the predictions about how each organism will replicate. Then, keep track on whether or not the forecast was right.

Data:  

Record your data from the zoo tour in the data chart below. Be sure to fill in the chart completely.

Zoo Organism Reproduction Prediction

(sexual, asexual, or both) Reproduction Result

(sexual, asexual, or both)

Elephant Sexual Sexual

Whiptail lizard Asexual Asexual

Parrot Sexual Sexual

Redwood tree  Both Both

Amoeba Asexual Asexual

Jellyfish Asexual Both

Conclusion:  

Your conclusion will include a summary of your lab results and an interpretation of the results. Please write in complete sentences.

1. List one-way mitosis and meiosis are the same and one way they are different.

Meiosis has 2 cell divisions, but mitosis has just one cell division. Since the parent cell develops diploid cells, meiosis I is the same as mitosis. The distinction between meiosis and mitosis is that after the whole process, meiosis produces genetically distinct haploid daughter cells, while mitosis produces genetically identical diploid daughter cells.

2. What is one advantage and one disadvantage of sexual reproduction?

The greatest benefit of sexual reproduction is that it aids in the development of offspring that are well suited to environmental environments due to genetic differentiation. As a result, the nation has a diverse range of descendants. The downside is that it needs two parents and takes longer than asexual reproduction.

3. What is one advantage and one disadvantage of asexual reproduction?

Asexual reproduction has the advantage of requiring only one parent, taking a short amount of time, and producing genetically identical offspring. The only drawback is that when there is a catastrophe, the mortality rate is poor due to the generation of genetically identical offspring.

4. Some living organisms are capable of both asexual and sexual reproduction. Explain how this can be an advantage.

To produce offspring, the organism may use either sexual or asexual reproduction. If it is difficult to find a mate, the living being will use asexual reproduction to produce offspring quickly. Sexual reproduction is possible because the individual requires genetically distinct offspring for survival.

Explanation:

Try to paraphrase evrything. I already paraphrased the procedure but i reccomend using the website "quillbot" to paraphrase evrything else so you dont get in trouble! If you have any qustions im here to answer ;)

6 0
3 years ago
Read 2 more answers
1. Sodium and water react according to the following equation. If 31.5g of sodium are added to excess water, how many liters of
Vika [28.1K]
<h3>  Question  1</h3>

 The number  of liter   of  hydrogen gas  that are formed   at STP is  

15.344 L

<u><em>  calculation</em></u>

<em>2 Na   +2 H₂O →  2NaOH  +H₂</em>

 calculate  the  moles of   Na

moles  =mass/molar mass

from periodic table the molar mass of Na =  23 g/mol

moles = 31.5 g /23 g /mol  = 1.37  moles


From  equation above the   mole   ratio  of  Na: H2   is  2:1  

therefore the  moles of H2  =1.37 x1/2 =0.685  moles


At  STP  1  moles  of a gas  = 22.4 L

              0.685   moles  =  ?  L

by cross multiplication

=[ (0.685  moles  x 22.4 L) /  1  mole  =15.344 L



<h3> Question 2</h3>

The  percent   yield       = 84.77%

<u><em>calculation</em></u>

4 Na + O₂   →   2 Na₂O

%yield  =actual yield / theoretical  yield  x 100

Actual  yield=  61.8 g

 <em>The theoretical  yield  is calculated as  below</em>

Step  1:  find the  moles  of Na

     moles =  mass /molar mass

 from periodic table the  molar mass  of Na = 23 g/mol

moles = 54.1 g /23 g/mol =2.352  moles

Step 2: use the  mole ratio to determine  the  moles  of Na₂O

 Na:Na₂O  is  4: 2  therefore the moles of Na₂O = 2.352  x 2/4 =1.176 moles

Step 3:   find  the theoretical mass  of Na₂O

mass =  moles  x  molar  mass

The molar mass  of Na₂O =  [(23 x 2 ) + 16]  =62 g/mol

mass  = 1.176 moles   x 62 g/mol = 72.9  g


%   yield   is therefore  = 61.8 g /72.9 x 100  = 84.77%



8 0
3 years ago
PLEASE HELP, I NEED TO GET THIS DONE TODAY
luda_lava [24]

The balanced reaction is

3Na3PO4  +  2CuSO4  ------>  3Na2SO4  + Cu3(PO4)2

To balance this reaction of double displacement, we see first that this reaction maintain the valence numbers of every atom.

Then, to have the same value of Na in the two sides of the reaction we multiply for the number of the other side. So,

(Na3PO4)x 2

(Na2SO4)x3

As we can see either, we need to balance PO4 cause there are two molecules of this in the reactant side, so we have two molecules of PO4 in the product either.

Then we get

3Na3PO4  +  2CuSO4  ------>  3Na2SO4  + Cu3(PO4)2

To probe that balance was correct, you can verify that the charges are exactly the opposite.

4 0
3 years ago
Ammonium phosphate NH43PO4 is an important ingredient in many fertilizers. It can be made by reacting phosphoric acid H3PO4 with
mestny [16]

Answer:

The weight of ammonium phosphate is 10 gm

Explanation:

The chemical reaction of ammonium phosphate formation is as follows.

3NH_{3}+H_{3}PO_{4} \rightarrow [(NH_{4})_{3}PO_{4}]

From the reaction one mole of phosphoric acid is equivalent to the one mole of ammonium phosphate.

So, "n" mole of phosphoric acid is equivalent to the "n" mole of ammonium phosphate.

Number of moles in 7.1 grams of phosphoric acid = \frac{7.1}{Molarmass\,of phosphoric\,acid}

\frac{7.1}{98}= \frac{1}{13.8}

<u>Formation weight of ammonium phosphate :</u>

Weight of ammonium phosphate = = \frac{1}{13.8}\times Molarmass\,of\,\,ammonium\,phosphate

=\frac{149}{13.8} = 10.79gm

Round the answer to 2 significant digits

Weight of ammonium phosphate = 10 gm

7 0
3 years ago
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