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
aliya0001 [1]
3 years ago
7

In photograph a, a coil of zinc metal is in a solution of sulfuric acid. In photograph b, a yellow solution of sodium chromate i

s being added to a colorless solution of silver nitrate. What clues in the photographs indicate that a chemical change is probably occurring?
Chemistry
1 answer:
steposvetlana [31]3 years ago
7 0

In photograph a, a coil of zinc metal is in a solution of sulfuric acid. In photograph b, a yellow solution of sodium chromate is being added to a colorless solution of silver nitrate. What clues in the photographs indicate that a chemical change is probably occurring.

In photograph a, chemical change is occuring as when a coil of zinc metal is in a solution of sulfuric acid, then the solution starts bubbling, that indicates a chemical change.

In photograph b, a yellow solution of sodium chromate is being added to a colorless solution of silver nitrate, that changes the color of the solution to red , that indicates a chemical change.

You might be interested in
Select the correct answer.
spayn [35]

it would be B because warm humid air+cool land=fog

6 0
4 years ago
Read 2 more answers
Given the balanced equation:
Vikki [24]

Answer: Option (3) is the correct answer.

Explanation:

When a more reactive element or atom replaces a less reactive atom then this type of reaction is known as single displacement reaction.

In the given reaction, potassium iodide reacts with fluorine and results in the formation of potassium fluoride and iodine.

Here, fluorine being more reactive displaces iodine from potassium iodide.

Therefore, it is a single replacement or displacement reaction.

8 0
3 years ago
If I have one mole of sulfur, how many atoms would that be?
krok68 [10]

Answer:

Atoms of sulfur = 9.60⋅g32.06⋅g⋅mol−1×6.022×1023⋅mol−1

Explanation:

because the units all cancel out, the answer is clearly a number, ≅2×1023 as required.

7 0
3 years ago
Cellular respiration involves the use of oxygencarbon dioxide and the release of carbon dioxideoxygen
Reil [10]
Cellular respiration can be thought of as the opposite of photosynthesis.  In cellular respiration oxygen is turned into carbon dioxide  while in photosynthesis carbon dioxide is tuned to oxygen.

I hope this helps. let me know in the comments if anything is unclear. 
3 0
3 years ago
Read 2 more answers
describe the behavior of the molecules in a liquid. Explain this behavior in terms of intermolecular forces.
tigry1 [53]

Answer:

Molecules in liquids are held to other molecules by intermolecular interactions, which are weaker than the intramolecular interactions that hold the atoms together within molecules and polyatomic ions.

5 0
3 years ago
Other questions:
  • The ratio of atoms of potassium to ratio of atoms of oxygen is
    9·1 answer
  • Why is it necessary to be able to replicate the results of a scientific experiment
    14·1 answer
  • Which of the following would dissolve in water, and why?
    9·1 answer
  • Given li2, c2, s2, and cl2, which of these species is paramagnetic? view available hint(s) g.com
    11·1 answer
  • According to the law of multiple proportions, when water forms, the mass ratio of hydrogen to oxygen is variable.
    15·1 answer
  • How many atoms are in 2.70 moles of iron (Fe) atoms?
    8·1 answer
  • Which reason best explains why plasmas are good conductors of electricity? They have mobile charged particles. They are at extre
    7·2 answers
  • resistor has a resistance of 1.8 W. How much current passes through the resistor if there is a potential difference of 3.0 V acr
    6·1 answer
  • The graph below shows how solubility changes with temperature.
    15·1 answer
  • Which components make up bronfenbrenner's ecological theory?(choose every correct answer.)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!