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krok68 [10]
3 years ago
5

Three examples of highly corrosive elements.

Chemistry
1 answer:
pogonyaev3 years ago
3 0
Bromine, sodium hydroxide, sulfuric acid and hydrogen peroxide
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An aqueous 0.300 M glucose solution is prepared with a total volume of 0.150 L. The molecular weight of
Rudik [331]

Answer:

8.11g

Explanation:

Given parameters:

Molarity of aqueous solution = 0.3M

total volume  = 0.15L

Molecular weight of glucose  = 180.6g/mol

Unknown:

Mass of glucose needed in the solution = ?

Solution:

To solve this problem, we need to understand molarity.

Molarity is the number of moles of solute in a given volume of solution. In this problem, the solute here is the glucose and the solvent is water.

      Molarity  = \frac{number of moles of solute}{volume of solution}

A solution is made up of solute and solvent.

   now, let us solve for the number of moles of the solute which is glucose;

   Number of moles of glucose  = molarity x volume of solution;

                                                      = 0.3 x 0.15

                                                      = 0.045mole

Now to find the mass of glucose;

        mass of glucose  = number of moles x molar mass

             input the parameters;

       

         Mass of glucose  = 0.045  x 180.16 = 8.11g

4 0
3 years ago
If a satellite or spaceship explodes in outer space, you can see the explosion from a distance but you cannot hear it. Why?
Lynna [10]
The answer is:
   C) Sound is a mechanical wave and needs a medium to travel through while light is an electromagnetic wave.
5 0
4 years ago
Read 2 more answers
Write the correct answers.
Ilya [14]

Answer:

pour in hot water and It will disolve

7 0
3 years ago
Once heat from the Sun penetrates the Earth's atmosphere, the heat is circulated as warm air rises and cold air sinks. What is t
mixer [17]
Once heat from the sun penetrate the Earths atmosphere, the heat is circulated as warm air rises and cold air sinks,this process is called convection Convection can be demonstrated by placing a heat source {cooker} at the side of a glass full of a liquid, and observing the changes in temperature in the glass caused by the warmer fluid moving into cooler areas
5 0
3 years ago
True or false: plants, animals, and the environment are not dependent on each other for the use of carbon and oxygen.
Reil [10]
False; animals breathe in oxygen and they produce carbon dioxide when they breathe out, and plants breathe in that carbon dioxide that the animals produce, and with that the plants create oxygen

They basically just swap oxygen for CO2, or CO2 for oxygen! So the answer is false because they DO depend on each other for the use of Oxygen and Carbon dioxide! Hope this helped :)
7 0
3 years ago
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