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Juliette [100K]
3 years ago
13

The speed of a chemical reaction

Chemistry
1 answer:
Ede4ka [16]3 years ago
5 0

Answer Option c. between gases should in all cases be extremely rapid because the average kinetic energy of the molecules is great.

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Calculate the volume in liters required to prepare a 5.00 m solution of nacl using 15.4 g of nacl
Vedmedyk [2.9K]
<span>52.7 ml First, determine how many moles of NaCl you have Atomic weight sodium = 22.989769 Atomic weight chlorine = 35.453 Molar mass NaCl = 22.989769 + 35.453 = 58.442769 g/mol Moles NaCl = 15.4 g / 58.442769 g/mol = 0.263505653 mol Now molarity is defined as moles/liter, so let's set up an equation for the number of liters we can make. molarity = moles/liter Substitute the known values 5.00 = 0.263505653/liter And solve for liters 5.00 = 0.263505653/liter 5.00* liter = 0.263505653 liter = 0.263505653/5.00 liter = 0.052701131 So you can make 0.0527 liters of the solution. Or 52.7 ml</span>
8 0
3 years ago
How many grams of water would require 2200 joules of heat to raise it’s temperature from 34 degrees Celsius to 100 degrees celsi
Arada [10]

Answer:

Mass, m = 7.97 grams

Explanation:

We have,

Initial temperature was 34 degrees Celsius

Heat produced in it is 100 calories of heat

The specific heat capacity of water is 4.18 J/g °C

The heat produced due to change in temperature is given by :

Q=mc(T_f-T_i)

m is mass of water in grams

m=\dfrac{Q}{c(T_f-T_i)}\\\\m=\dfrac{2200}{4.18\times (100-34)}\\\\m=7.97\ g

So, 7.97 grams of water is required to produce heat of 2200 joules.

7 0
3 years ago
Plz help if you can!!!
ivann1987 [24]

Answer: the answer is d

Explanation:because atoms are what make things up and that means there are multiple molecules in one atom

7 0
3 years ago
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Mechanical waves are classified according to
Natasha_Volkova [10]

mechanical waves are classified by how they move. there are two types of mechanical waves:transverse waves and longitudinal waves.

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3 years ago
Determine the oxidation state a manganese in each of the following structures. a) Mn0₂ b) Mn2O7 C) KMnO4 .​
irina1246 [14]

Explanation:

please mark me as brainlest

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2 years ago
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