1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
atroni [7]
3 years ago
9

Why does the author include information about bread and sandwich wrappings in the article?

Chemistry
2 answers:
kirill115 [55]3 years ago
6 0

Answer:

what is the story about actually.i think it's from ur lesson

Bogdan [553]3 years ago
6 0

Explanation:

certain breads mold easily...(fact)..

especially white bread., when exposed to any moisture, from refrigeration, or freezing..

when taken out of (cold environment), humidity in air causes molding because you take it from cold to/warm environment.

check expiration dates, keep refrigerated, and inspect 4 molding. Companies like WMART, buy in bulk, when on shelf, defrosts,, then has molding within expiration dates..

You might be interested in
Gaseous methane (CH4) reacts with gaseous oxygen gas (02) to produce gaseous carbon dioxide (CO2) and gaseous water (H20). What
Mariana [72]

Answer:

Theoretical yield = 3.51 g

Explanation:

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

For CH_4  :-

Mass of CH_4  = 1.28 g

Molar mass of CH_4  = 16.04 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{1.28\ g}{16.04\ g/mol}

Moles_{CH_4}= 0.0798\ mol

For O_2  :-

Mass of O_2  = 10.1 g

Molar mass of O_2  = 31.998 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{10.1\ g}{31.998\ g/mol}

Moles_{O_2}= 0.3156\ mol

According to the given reaction:

CH_4+2O_2\rightarrow CO_2+2H_2O

1 mole of methane gas reacts with 2 moles of oxygen gas

0.0798 mole of methane gas reacts with 2*0.0798 moles of oxygen gas

Moles of oxygen gas = 0.1596 moles

Available moles of oxygen gas = 0.3156 moles

<u>Limiting reagent is the one which is present in small amount. Thus, CH_4 is limiting reagent. </u>

The formation of the product is governed by the limiting reagent. So,

1 mole of methane gas on reaction produces 1 mole of carbon dioxide.

0.0798 mole of methane gas on reaction produces 0.0798 mole of carbon dioxide.

Mole of carbon dioxide = 0.0798 mole

Molar mass of carbon dioxide = 44.01 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

0.0798\ moles= \frac{Mass}{44.01\ g/mol}

Mass of CO_2 = 3.51 g

<u> Theoretical yield = 3.51 g</u>

3 0
3 years ago
Which reaction results in only a physical change?
Advocard [28]
D will because water just turns from liquid to a gas by adding heat. That is a physical change. The other equations are chemical changes.
4 0
3 years ago
Based on the structure, which material will dissolve this biomolecule the best? dilute alcohol water oil ionic solution
alexdok [17]
I think that it would be ionic solution
6 0
3 years ago
Magnesium has three naturally occurring isotopes with masses of 23.99 amuamu, 24.99 amuamu, and 25.98 amuamu and natural abundan
bonufazy [111]

Answer:

24.309 g/mol

Explanation:

To get the atomic mass, all we have to do is calculate with the masses of the three isotope, the real quantity present, taking account of the percent and then, do a sum of these three values. Like a pondered media.

For the first isotope:

23.99 * (78.99/100) = 18.95 g/mol

For the second isotope:

24.99 * (10/100) = 2.499 g/mol

For the last isotope:

25.98 * (11.01/100) = 2.86 g/mol

Now, let's sum all three together

AW = 18.95 + 2.499 + 2.86

AW = 24.309 g/mol

3 0
3 years ago
Read 2 more answers
(10 points ) please help this is major grade .
erastova [34]

Answer:

absorbed

Explanation:

because black absorbs the light around it

4 0
2 years ago
Read 2 more answers
Other questions:
  • Where are atoms that tend to gain electrons located in the periodic table of the elements? A. on the left side B. on the right s
    6·1 answer
  • What is the definition of a gas
    15·2 answers
  • Which type of bond results when one or more valence electrons are transferred from one atom to another?
    6·1 answer
  • How many stereoisomers are obtained from the reaction of 3-methyl-2-butanone with each of the following organometallic reagents
    13·1 answer
  • An unknown diatomic gas has a density of 3.164 g/l at stp. What is the identity of the gas?
    8·1 answer
  • If pink flowers are crossed with white flowers and all offspring are pink, which of these is most likely to be true? *
    13·2 answers
  • Arrange the forms of electromagnetic radiation in order of decreasing energy (from highest energy to lowest energy). You are cur
    9·1 answer
  • Convert 2.41 x 10^2 m to cm
    11·1 answer
  • 1
    14·1 answer
  • When elements form compounds, the elements
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!