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BARSIC [14]
3 years ago
14

As the temperature of a reaction is increased, the rate of the reaction increases because the . (A) reactant molecules collide m

ore frequently with less energy per collision. (B) reactant molecules collide less frequently. (C) reactant molecules collide with greater energy per collision. (D) reactant molecules collide less frequently and with greater energy per collision. (E) activation energy is lowered.
Chemistry
1 answer:
vredina [299]3 years ago
5 0

Answer:

C

Explanation:

Temperature is the measure of "hotness" of a system. When temperature increases, the kinetic energy of the particles increase. So they will collide with greater energy per collision.

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Ionic, covalent and metallic. How many of these can form giant structures?
Elena L [17]

Answer:

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Explanation:

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2 years ago
solution is 2.41 molal toluene (C 7H 8, 92 g/mol) in benzene (C 6H 6, 78 g/mol); i.e. consider toluene the solute, benzene the s
inn [45]

Answer : The molarity of solution is, 1.73 mole/L

Explanation :

The relation between the molarity, molality and the density of the solution is,

where,

d=M[\frac{1}{m}+\frac{M_b}{1000}]

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m = molality of solution  = 2.41 mol/kg

M = molarity of solution  = ?

M_b = molar mass of solute (toluene) = 92 g/mole

Now put all the given values in the above formula, we get  the molality of the solution.

0.876g/ml=M\times [\frac{1}{2.41mol/kg}+\frac{92g/mole}{1000}]

M=1.73mol/L

Therefore, the molarity of solution is, 1.73 mole/L

7 0
3 years ago
Which of the following ions/atoms has the smallest radius?
Anna11 [10]

Answer:

B I believe im sorry if it's not right

8 0
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Explain why elements in the same group of the periodic table have similar chemical properties
jolli1 [7]

Answer:

                      Elements in same group have same chemical properties due to same number of valence electrons in valence shell.

Explanation:

                   Chemical properties are those properties which results in transforming the starting material to a entirely new substance with different chemical and physical properties. This transformation takes place after a chemical reaction. Hence, the chemical reactivity of some atoms is greater than the others and vice versa.

                    In periodic table it is found that the elements in the same group have almost same chemical behaviour. For example, elements of group 8 (or 18) are almost non reactive, while that of group 1 and group 7 are found very reactive and show same chemical behaviour like group 1 elements forms +1 ion while group 7 elements form -1 ions as the group 1 metals have single valence shell electron which upon losing allow the atom to attain stability and the halogen having 7 electrons in valence shell upon accepting one electron allow them to attain a octet of stability respectively.

8 0
3 years ago
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