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
spin [16.1K]
3 years ago
9

Express the answer in scientific notation and with the correct number of significant figures: (6.32 x 10-4) ÷ 12.64

Chemistry
2 answers:
anygoal [31]3 years ago
6 0

Answer:

5.00*10^{-5}

Explanation:

\frac{6.32*10^{-4} }{12.64}  = 0.00005= 5.00*10^{-5}

The answer is in three significant figures because that is the least number of significant figures in any of the numbers involved in the calculation

elixir [45]3 years ago
4 0
<span>Express the answer in scientific notation and with the correct number of significant figures:
(6.32 x 10-4) ÷ 12.64
5.00 x 10^-5</span>
You might be interested in
When molten material hardens and cools, what type of rock is formed?
kirza4 [7]
Should be an igneous rock.
7 0
3 years ago
An iron storage tank is placed in the ocean with no cathodic protection. a. What is the electrolyte in this reaction? b. As the
MariettaO [177]

Answer:

Iron is being oxidized at the anode and water is acting as the electrolyte.

Explanation:

When iron is exposed to oxygen and water , the rusting of iron takes place.

<u>The reaction taking place at anode : Oxidation of iron.</u>

{anode:}\;\text{Fe}(s)\;{\longrightarrow}\;\text{Fe}^{2+}(aq)\;+\;2\text{e}^{-}

The reaction taking place at cathode : Reduction of oxygen in the air.

{cathode:}\;\text{O}_2(g)\;+\;4\text{H}^{+}(aq)\;+\;4\text{e}^{-}\;{\longrightarrow}\;2\text{H}_2\text{O}(l)  

The overall reaction:

{overall:}\;2\text{Fe}(s)\;+\;\text{O}_2(g)\;+\;4\text{H}^{+}(aq)\;{\longrightarrow}\;2\text{Fe}^{2+}(aq)\;+\;2\text{H}_2\text{O}(l)

The rust that is hydrated iron(III) oxide can form iron(II) ions which can react further with oxygen.

4\text{Fe}^{2+}(aq)\;+\;\text{O}_2(g)\;+\;(4\;+\;2x)\;\text{H}_2\text{O}(l)\;{\longrightarrow}\;2\text{Fe}_2\text{O}_3{\cdot}x\text{H}_2\text{O}(s)\;+\;8\text{H}^{+}(aq)

Thus, from the above reactions ,

Iron is being oxidized at the anode and water is acting as the electrolyte.

3 0
4 years ago
Enzymes use several types of catalytic mechanisms. Differentiate between acid-base catalysis
belka [17]

Answer:

Explanation:

Covalent catalysis is when a transient covalent bond is formed between substrate and residues such that so the enzyme nucleophilic group on an electrophilic moiety of the substrate is bound at the active site. Metal ion catalysis involves activating bound water through forming nucleophilic hydroxide ion.

6 0
4 years ago
Significant factors of (9.9 x 10^4) + (4.88 x 10^2) + (7.60 x 10^3) = ______
Arisa [49]

Answer:

gurjfvdtshhjjgeghoogzgb buugdxcjknvdehooncdevkon

Explanation:

ccehjllgrt kloxq humk

3 0
3 years ago
Can anyone figure out the answer?
Scrat [10]
2.0 grams of mass which would make the dimand 
5 0
3 years ago
Other questions:
  • Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV) oxide. 4HCl(aq)+MnO2(s)⟶M
    7·1 answer
  • How does the volume occupied by a cubic centimeter compare with the volume occupied by a millimeter
    14·1 answer
  • An unknown solution has a ph of 8. how would you classify this solution?
    14·1 answer
  • What is the percent composition of carbon in heptane c7h16
    5·1 answer
  • Which type of heat exchanger shell and tube or plate heat exchanger is suitable for evaporation?
    8·1 answer
  • A person tries to heat up her bath water by adding 5.0 L of water at 80°C to 60 L of water at 30°C. What is the final temperatur
    5·1 answer
  • What are some possible sources of error in a titration experiment? Share some tips to minimize errors with your classmates.
    12·2 answers
  • Potassium impart purple colour but beryllium do not impart any colour to the flame.Why?​
    9·1 answer
  • Number of electrons in 21Sc with L=1​
    5·1 answer
  • PLEASE HELP ME!! sue tomorrow:(
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!