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
densk [106]
3 years ago
15

How much percent of earth is water

Chemistry
1 answer:
horsena [70]3 years ago
6 0

71% of the earth is water and the 29% is continents and islands.

You might be interested in
Is baking soda is dissolved in vinegar and bubbles appear a chemical change?
nydimaria [60]
Yes baking soda is dissolved in vinegar and bubbles appear is a CHEMICAL CHANGE .
8 0
3 years ago
Read 2 more answers
(Exercise 5.2.14 modified) A common method used to produce bleach (sodium hypochlorite) is by the reaction Cl2 + 2NaOH  NaCl +
Oksana_A [137]

Answer:

Chlorine is limiting reactant

Explanation:

Based on the reaction:

Cl₂ + 2NaOH → NaClO + NaCl + H₂O

<em>1 mole of chlorine reacts with 2 moles of NaOH</em>

<em />

To find limiting reactant, we need to determine the moles of the reactants:

<em />

<em>Moles Cl₂ -Molar mass: 70.9g/mol-:</em>

800lb Cl₂ * (453.6g / 1lb) * (1mol / 70.90g) =

5118 moles Cl₂

<em>Moles NaOH -Molar mass: 40g/mol-:</em>

1200lb NaOH * (453.6g / 1lb) * (1mol / 40g) =

13608 moles NaOH

For a complete reaction of 13608 moles of NaOH you need:

13608 moles NaOH * (1mol Cl₂ / 2 moles NaOH) = 6804 moles of Cl₂

As the solution contains just 5118 moles of chlorine,

<h3>Chlorine is limiting reactant</h3>
8 0
3 years ago
How have chemists changed our daily lives the most
sladkih [1.3K]
By using what they know to produce new and helpful products
4 0
3 years ago
What is the difference between a strong acid and a weak acid?
chubhunter [2.5K]
Strong Acid has a lower pH level than a weak acid, weak acid pH level will be closer to 7 than the strong acid. Weak acid does not dissociate completely, therefore a weaker proton donor, thus higher pKa. Strong acids dissociates completely and release all of their hydrogen atom when dissolve in water.
7 0
3 years ago
Help with this please
zvonat [6]

Answer:

electrolytes yes it is

Explanation:

i'm built different

8 0
3 years ago
Other questions:
  • What’s the difference between the three types on natural radioactivity
    10·1 answer
  • Balance the following equation: (3pts) Al + HBr --&gt; AlBr3 + H2
    8·1 answer
  • In a campfire, carbon from wood reacts with oxygen in a combustion reaction. If you’ve ever started a campfire, you know you mus
    10·2 answers
  • 0.556 g of a solid white acid are dissolved in water and completely neutralized by the addition of 52.38 mL of 0.396 M NaOH. Cal
    7·1 answer
  • Why does the elements of group 17 appear as diatomic molecules?
    12·1 answer
  • Which is an important step in the alternate method for balancing equations in redox reactions?
    12·2 answers
  • Match each organ with the correct organ system.
    9·2 answers
  • A 187.4g sample of C3H5(NO3)3 decomposes to produce carbon dioxide, water, diatomic oxygen and diatomic nitrogen.
    11·1 answer
  • What is a substance combination of different atoms?
    7·2 answers
  • Which definition bests describes an hydrogen bond? 
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!