What is the molar mass of Mg(NO3)2

Chemistry

1 answer:

ipn [44]3 years ago

4 0

Answer: The molar mass of magnesium nitrate is 148.3148 g/mol.

Explanation:

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Three students are working with different substances to measure the chemical changes that occur. Chao is working with milk, Mia

yawa3891 [41]

For chao who is working with milk, he should adjust the temperature of the milk to have a faster reaction. for ezra who is working with rock, she must increase the surface area of the rock to increase the reaction rate, this can be done by grinding. and for mia who is working with carbon dioxide gas, she should adjust the pressure

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3 years ago

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What is the 10% rule? What is its significance? Why is energy lost?

TEA [102]

The 10% rule means that approximately there will be only 10% energy transferred from a trophic level into another. That was because the consumer on the upper level will use the energy before it was consumed. About 90% of the energy used so only 10% remain will be transferred.
Example: an antler eating grass with a total 100 calories. Then the antler is moving and growing, using 90 calories. Then a lion eats the antler, but the energy remains is only 10 calorie because 90 calories are already used.

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3 years ago

PLEASE HELP

charle [14.2K]

Answer: The statement, average kinetic energy of the gas particles is greater in container A because its particles move faster is correct.

Explanation:

Kinetic energy is the energy obtained due to the motion of an object or substance.

$K.E = \frac{3}{2}kT$

where,

T = temperature

This means that kinetic energy is directly proportional to temperature.

So, when heat is provided to container A then its molecules will start to move rapidly from one place to another which will cause more collisions between the atoms.

Hence, average kinetic energy will be more in container A.

Whereas container B is placed at room temperature which is low than that in container A. So, molecules in container B will move at almost same speed and therefore, specific collisions will be there. So, average kinetic energy in container B will be less than that in container A.

Thus, we can conclude that the statement, average kinetic energy of the gas particles is greater in container A because its particles move faster is correct.

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2 years ago

How many moles of a solute is contained in 500mL of a 2.5 M solution?

Pavlova-9 [17]

Answer:

100M

Explanation:

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What are two elements that form diatonic molecules held together by triple covalent bond?

kodGreya [7K]

Explanation: -Nitrogen is the element that may form diatomic molecules held together by triple covalent bonds. -Nitrogen is an element that occurs as a diatomic molecule in its gaseous state. This element only exists in the diatomic form with triple bonds between the two atoms.

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2 years ago