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blondinia [14]
3 years ago
7

Name two kinds of rocks formed by conduction of energy.

Chemistry
1 answer:
Yakvenalex [24]3 years ago
7 0

Answer:

pumice and gneiss

Explanation:

both are formed by conduction of energy

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A catalyst will
scZoUnD [109]

Answer:

increase the chemical rate

7 0
3 years ago
Convert 3,526 meters (m) into kilometers (km). (Don't forget units)<br> EN<br> Voranean
Nina [5.8K]

Answer:

3,526 meters (m) into kilometers (km) = 0.003526 kilometers

Explanation:

6 0
2 years ago
Calculate the molarity when 135 g of KCl is dissolved to make a 2.50 L solution. Round to two significant digits.
inysia [295]
<h2>0.72 mol/L</h2>

Explanation:

       \textrm{Molarity of a solution}=\frac{\textrm{Number of moles of solvent}}{\textrm{Volume of solution in Liters}}

       We are given a 2.50L solution which contains 135g of KCl.

       To calculate number of moles of KCl present, we need to find it's molar mass from charts. Molar Mass of KCl is known to be 74.55\frac{g}{Mol}.

       Number of moles of KCl present = \frac{\textrm{Given weight}}{\textrm{Molar Mass}}\textrm{ = }\frac{135g}{74.55\frac{g}{Mol}}\textrm{ = }1.81087mol

       Molarity = \frac{1.81087mol}{2.50L}=0.7243\frac{mol}{L}

∴ Molarity of given KCl solution = 0.72\frac{mol}{L}

7 0
3 years ago
How much heat energy is needed to raise the temperature of 59.7g of cadmium from 25°C to 100°C? The specific heat of cadmium is
labwork [276]
     Using the Fundamental Equation of Calorimetry, we have:

Q=mc\Delta T \\ Q=59.7.0.231.(100-25) \\ \boxed {Q=1034.3025J}      

If you notice any mistake with my english, please know me, because I am not native.
7 0
3 years ago
What class of organism is vital in the recycling of nutrients in the ecosystem?
asambeis [7]
I believe that would be a decomposer
6 0
3 years ago
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