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
SIZIF [17.4K]
2 years ago
12

A marked change in form, nature, appearance

Chemistry
1 answer:
gayaneshka [121]2 years ago
6 0
12 enejekejejwjssjsjjsjshshsi
You might be interested in
What observations support the assumption that all of the iodine reacted with the zinc explain?
natita [175]

Answer: It will lead to form a white colored product ZnI_2.

Explanation: The reaction of iodine and zinc involves the direct reaction between a metal and a non-metal leading to the synthesis of a metal salt.

Zn+I_2\overset{H_2O}{\rightarrow}ZnI_2(aq)\overset{\Delta }{\rightarrow}ZnI_2(s)

During this reaction, heat is released (exothermic reaction) while forming Zinc Iodide(ZnI_2) which can be easily obtained by evaporating the solvent.

By looking at the stoichiometric coefficients of reactants and products, we observe that whole of the iodine has reacted with zinc.

5 0
3 years ago
State the number of sig figs in each value:
Rasek [7]

Answer:

Explanation:

Significant figure implies number of digits that are to be considered. Some rules are required to be considered when writing a given expression to an expected significant figures.

So that:

1) 0.00004050 is 4 significant figures

2) 54.7000 is 6 significant figures

3) 1,000.09 is 6 significant figures

4) 0.039 is 2 significant figures

8 0
3 years ago
What is the similarities of freezing of water and electrolysis of water​
erastova [34]

Answer:

Electrolysis of water is the process of using electricity to decompose water into oxygen and hydrogen gas. Hydrogen gas released in this way can be used as hydrogen fuel, or remixed with the oxygen to create oxyhydrogen gas, which is used in welding and other applications.Ordinarily, the freezing point of water and melting point is 0 °C or 32 °F. The temperature may be lower if supercooling occurs or if there are impurities present in the water which could cause freezing point depression to occur. Under certain conditions, water may remain a liquid as cold as -40 to -42°

Explanation:

8 0
3 years ago
What is another name for the sunlit zone of the ocean?
motikmotik

Answer:

photic zone

Explanation:

i hope it will help

4 0
3 years ago
Read 2 more answers
If you have 16 g of manganese (II) nitrate tetrahydrate, how much water is required to prepare 0.16 M solution from this amount
Schach [20]

<u>Answer:</u> The amount of water required to prepare given amount of salt is 398.4 mL

<u>Explanation:</u>

To calculate the volume of solution, we use the equation used to calculate the molarity of solution:

\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}

We are given:

Molarity of solution = 0.16 M

Given mass of manganese (II) nitrate tetrahydrate = 16 g

Molar mass of manganese (II) nitrate tetrahydrate = 251 g/mol

Putting values in above equation, we get:

0.16M=\frac{16\times 1000}{251\times \text{Volume of solution}}\\\\\text{Volume of solution}=\frac{16\times 1000}{251\times 0.16}=398.4mL

Volume of water = Volume of solution = 398.4 mL

Hence, the amount of water required to prepare given amount of salt is 398.4 mL

4 0
3 years ago
Other questions:
  • Anyone know what the answer is??
    7·1 answer
  • How do I find the number of neutrons in an atom?
    7·2 answers
  • A particular 3.0 L solution contains 2.5 mmol (millimoles) of a substance. What is the concentration of this solution in number
    13·1 answer
  • How could you verify that you produced carbon dioxide in your combustion reaction? 2. what indication did you have that nh3 was
    9·1 answer
  • PLS HELP QUICKLY!!!!!! I AM DOING A TIMED TEST!!!!
    5·2 answers
  • What is the half-life of sodium-25 if 1.00 gram of a 16.00-gram sample of sodium-25 remains unchanged after 237 seconds?
    10·1 answer
  • What are the arrhenius definitions of an acid and a base?
    11·1 answer
  • Consider the half reactions below for a chemical reaction.
    8·2 answers
  • How does the motion of particles in the sun’s plasma compare to the motion of particles in a solid?
    8·1 answer
  • Who's the first person to reach the moon​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!