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
il63 [147K]
3 years ago
10

) The color of the __________ litmus paper into ___________ tell us that the solution of the compound is ________________ in nat

ure.
Chemistry
1 answer:
maks197457 [2]3 years ago
6 0

Answer:

The color of the blue litmus paper turning into red tells us that the solution of the compound is acidic in nature.

The color of the red litmus paper turning into blue tells us that the solution of the compound is basic in nature.

Explanation:

Litmus paper is paper treated with a mixture of natural dyes obtained from lichens. This makes the paper purple in neutral conditions (pH = 7), red in acidic conditions (pH < 7), and blue in basic (alkaline) conditions (pH > 7). It is used to determine whether a solution is acidic or basic, but can't measure the pH.

You might be interested in
a closed flask of air (0.250 L) contains 5.00 "puffs" of particles. The pressure probe on the flask reads 93 kPa. A student uses
Sergio039 [100]

Answer: New pressure inside the flask would be 148.8 kPa.

Explanation: The combined gas law equation is given by:

PV=nRT

As the flask is a closed flask, so the volume remains constant. Temperature is constant also.

So, the relation between pressure and number of moles becomes

P=n\\or\\\frac{P}{n}=constant

\frac{P_1}{n_1}=\frac{P_2}{n_2}

  • Initial conditions:

P_1=93kPa\\n_1=5\text{ puffs}

  • Final conditions: When additional 3 puffs of air is added

P_2=?kPa\\n_2=8\text{ puffs}

Putting the values, in above equation, we get

\frac{93}{5}=\frac{P_2}{8}\\P_2=148.8kPa

3 0
3 years ago
How many moles of carbonate are there in sodium carbonate​
vaieri [72.5K]

There are 0.566 moles of carbonate in sodium carbonate.

<h3>CALCULATE MOLES:</h3>
  • The number of moles of carbonate (CO3) in sodium carbonate (Na2CO3) can be calculated by dividing the mass of carbonate in the compound by the molar mass of the compound.

  • no. of moles of CO3 = mass of CO3 ÷ molar mass of Na2CO3

  • Molar mass of Na2CO3 = 23(2) + 12 + 16(3)

  • = 46 + 12 + 48 = 106g/mol

  • mass of CO3 = 12 + 48 = 60g

  • no. of moles of CO3 = 60/106

  • no. of moles of CO3 = 0.566mol

  • Therefore, there are 0.566 moles of carbonate in sodium carbonate.

Learn more about number of moles at: brainly.com/question/1542846

5 0
2 years ago
Read 2 more answers
4.Identify each substance in the following word equation as a reactant or a product
Anastaziya [24]

Explanation:

4.                 limestone heat lime + carbon dioxide

The reactants in this expression above is limestone

The products of the reaction is carbon dioxide and lime

Reactant is the species that gives the product and it is usually found on the left hand side of the expression.

The product is the substance on the right hand side of the expression that forms through the experiment.

Heat is used to facilitate the reaction.

5. An exothermic reaction is a reaction in which heat is given off.

An endothermic reaction is a reaction in which heat is absorbed in the process.

An exothermic reaction is always warmer after the reaction whereas an endothermic reaction is colder at the end of the reaction.

5 0
3 years ago
A(n) _____ reaction is a reaction in which an acid and a base react in an aqueous solution to produce a salt and water.
UkoKoshka [18]
<span>A neutralization reaction is a reaction in which an acid and a base react in an aqueous solution to produce a salt and water. An example of a neutralization reaction is the reaction of sodium hydroxide and hydrogen chloride to form sodium chloride and water. Answer is C.</span>
8 0
3 years ago
Power plants use carbonic acid to remove sulfur oxide gases.
likoan [24]
Is this a question or a statement?
7 0
3 years ago
Read 2 more answers
Other questions:
  • 14. In the lab, an experimenter mixes 75.0 g of water (initially at 30oC) with 83.8 g of a solid metal (initially at 600oC). At
    12·1 answer
  • What does fossil mean in my own words
    6·1 answer
  • 11)
    14·1 answer
  • The complete oxidation of glucose (c6h12o6) to carbon dioxide and water in aerobic respiration consumes how many molecules of ox
    10·1 answer
  • N2__+3H2= 2NH3
    10·1 answer
  • An orange has a mass of 359 grams . How many kilograms is this?
    5·1 answer
  • Is a scalene triangle a right triangle
    15·1 answer
  • The elements in period 3 all have what characteric
    9·1 answer
  • This science so I couldn’t put a thing as science<br>X<br>Y<br>Z
    10·2 answers
  • How many lone pairs are on the central atom of a molecule of RnCl4?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!