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
ladessa [460]
4 years ago
10

Both slicing a tomato and a chemical change such as burning toast cannot be reversed. However, why is slicing a tomato still con

sidered only a physical change?
Chemistry
2 answers:
iogann1982 [59]4 years ago
7 0

Physical changes do not change the chemical make up of a substance. Chemical changes do.

Slicing a tomato only changes its proportion and size (which are physical properties), instead of anything inside the tomato. while burning toast changes something inside the toast, making it a chemical change, instead of a physical change.

Molodets [167]4 years ago
3 0

Physical changes do not change the chemical make up of a substance. Chemical changes do.

Slicing a tomato only changes its proportion and size (which are physical properties), instead of anything inside the tomato.

Meanwhile, burning toast changes something inside the toast, making it a chemical change, instead of a physical change.

You might be interested in
If the partial pressure of oxygen outside of a cell is 100 mmHg and the partial pressure of oxygen inside of a cell is 25 mmHg,
mrs_skeptik [129]

" There will be a net movement of oxygen from outside the cell to inside the cell " Statement is True.

Explanation:

The partial pressure for oxygen in alveoli is greater under normal circumstances, and oxygen moves neatly into the blood. In addition, the partial carbon dioxide pressure throughout the blood usually is higher, such that carbon dioxide migrate clearly into the alveoli.

The few common molecules which can traverse the cell membrane by absorption (or diffusion of a sort recognized as osmosis) are water, carbon dioxide and oxygen. Metabolism is typically oxygen-needed, which is lowest in the cell within the animal and plant, so that net oxygen flows to the cell.

3 0
4 years ago
Which is the best example of how electromagnetic energy is used in everyday life?
Sever21 [200]
A patient receiving an X-ray in a hospital
4 0
4 years ago
8SnCl4<br> How many atoms
Veronika [31]

Answer:

i think i like 14 or 8 atom

Explanation:

8 0
3 years ago
002 (part 1 of 2) 10.0 points
BARSIC [14]

Answer:

4) 1.5 mol

Explanation:

Well, the equation is already balanced and the mole to mole ratio of reactants and products are all 1. So if the limiting reactant is HCl and you have 1.5 mol, you do the mole to mole ratio with NaCl and since it is 1 to 1, there'd be 1.5 mol of NaCl.

6 0
3 years ago
g Where, approximately, is the negative pole on each of these molecules? Lewis structure for C O F 2. A central C atom is single
seropon [69]

The molecule with higher dipole moment is COFH because the geometry of the molecule in the COF2 nearly cancel the dipolar moment of each other. To be more clear:

The dipolar moment is the vectorial sum of all bond moments in the molecule or dipolar moment of each bond. The dipolar moment of a molecule with three or more atoms is determined by bond polarity as their geometry.

COF2 has a trigonal planar structure which are symmetric. The electronegativity of oxygen is slightly different regarding fluor. So as you can see in the image, the electronic density is specially displaced to the fluor atoms, but either to the oxygen atom.

COFH has a trigonal structure but differs from COF2 because there is an hydrogen who is donating it's electronic density, so in this zone the electronic density is less than over oxygen or fluor. That makes bond angles be different between them.

3 0
3 years ago
Read 2 more answers
Other questions:
  • If earth was like an hard boiled egg which part of earth would the egg white reprsent?
    11·1 answer
  • Why can hydrogen atoms form covalent bonds but not helium
    12·1 answer
  • Which element burn with a characteristics of green flame<br>please cleet all that apply​
    11·1 answer
  • Convert 12 kcal to joules
    12·2 answers
  • Uses of noble gases with description please. thanks
    9·1 answer
  • A calorimeter contains 35.0 mLmL of water at 15.0 ∘C∘C . When 2.20 gg of XX (a substance with a molar mass of 56.0 g/molg/mol )
    9·1 answer
  • A student believes that a solution of potassium chromate should be insoluble
    7·1 answer
  • Please answer each question! Due today! Will mark brainliest!
    15·1 answer
  • How is a convection current created.
    14·1 answer
  • Why does an aqueous solution of an ionic substance conduct an electric current?.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!