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
Aleks04 [339]
3 years ago
10

Glass

Chemistry
1 answer:
avanturin [10]3 years ago
7 0

Answer:

cookies is physical

gas is physical

evaporation is chemical

Explanation:

You might be interested in
Which concepts can be used to explain the difference in acidicty between ethanol and 2-fluoroethanol?
Margarita [4]

Answer:

The answer is Inductive effect

Explanation:

To determine the acidity or alkalinity of an organic compound. We have to keep in mind that the whole analysis is based on the comparison between the compounds, and we must work with the conjugated base of the molecule. Keeping in mind, the more unstable the base, the less acidic the molecule is. Thus, to determine instability, the Inductive Effect of the molecule can be used.

This type of effect occurs when atoms of different electronegativities are linked or very close in the compound. The most electronegative atom has a tendency to bring electrons close to it, thus creating a dipole. This dipole can have a stabilizing effect on the molecule, as it “relieves” the excessive charge on some occasions, better accommodating the charges.

However, in some cases, instead of chains with chlorine radicals, we may have chains with methyl radicals. This has a major impact on the inductive effect, keeping in mind that alkyl groups are electron donors.

5 0
3 years ago
Using this equation, m1v2=m2v2 , calculate the diluted molarity of 100 mL of a 0.5 M solution when 50 mL of
geniusboy [140]

The molarity of the diluted solution is 0.33 M

From the question given above, the following data were obtained:

Molarity of stock solution (M₁) = 0. 5 M

Volume of stock solution (V₁) = 100 mL

Volume of diluted solution (V₂) = 100 + 50 = 150 mL

<h3>Molarity of diluted solution (M₂) =? </h3>

The molarity of the diluted solution can be obtained by using the dilution formula as illustrated below:

<h3>M₁V₁ = M₂V₂</h3>

0.5 × 100 = M₂ × 150

50 = M₂ × 150

Divide both side by 150

M₂ = 50 / 150

<h3>M₂ = 0.33 M</h3>

Therefore, the molarity of the diluted solution is 0.33 M

Learn more: brainly.com/question/24625656

8 0
3 years ago
Suppose the available nutrients in the soil of an ecosystem decrease. Over time, which adaptation is MOST LIKELY to evolve among
Anna [14]

Answer:

Root system will become larger or extend farther

Explanation:

If nutrient in soil decrease, the plant's roots system will likely become larger and extend out deeper and farther to get all the nutrients it possibly can

4 0
3 years ago
Determine whether each cation is acidic or pH-neutral. For the cations that are acidic, write an equation that shows how the cat
Anton [14]

THE COMPLETE QUESTION IS:

Determine whether each cation is acidic or pH-neutral. For those cations that are acidic, write an equation that shows how the cation acts as an acid . a. NH+4 b. Na+ c. Co3+ d. CH2NH+3

Answer:

<em>a. Acidic</em>

<em>b. neutral</em>

<em>c. Acidic</em>

<em>d. Acidic</em>

Explanation:

a. NH4+ + H2O <==> NH3 + H3O+ (NH4+ is a conjugate acid of a weak base. Therefore it is acidic)

b. Neutral. Na+ is a cation of a strong base. Therefore it's pH is neutral.

c. Co(H2O)6³+ + H2O <==>CoH2O5(OH)²+ + H3O+

(Therefore Co+ is a weak acid since hydronium ion is formed.)

d. CH2NH3+ is a conjugate acid of a weak base. Therefore it is acidic.

6 0
3 years ago
DNA would be found within which classification of biological molecules?
Katarina [22]

Answer:

Nucleic acids

4 0
3 years ago
Read 2 more answers
Other questions:
  • Theresa invested $5,000 in an account she expects will earn 7% annually. Approximately how many years will it take for the accou
    11·1 answer
  • It would be expected that methanol (ch3oh) would be more soluble in water than methane (ch4) would be.
    10·1 answer
  • What is the silver ion concentration in a solution prepared by mixing 369 mL 0.373 M silver nitrate with 411 mL 0.401 M sodium c
    11·1 answer
  • Can aromatic compounds belong to other classes of compounds
    14·1 answer
  • Explain in terns of atomic structure why barium has a lower first ionization energy than magnesium.
    8·1 answer
  • At constant temperature, a sample of helium at 760. torr in a closed container was compressed 5) from 5.00 L to 3.00 L, with no
    15·1 answer
  • Which substance will require more energy to heat if all the samples have the same mass? A chart with two columns and nine rows.
    8·1 answer
  • Who want FREEEEEE Points?????
    8·1 answer
  • 34 atoms of carbon (C) react with 22 molecules of hydrogen gas (H2). How many molecules of methane (CH4) will be formed, and wha
    15·1 answer
  • What volume is needed to make a 2.45 M solution of KCl using 0.50 mol of KCl
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!