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Ahat [919]
3 years ago
6

Could someone plz help me? Giving brainliest

Chemistry
1 answer:
MrRissso [65]3 years ago
7 0

Answer:

its D

Explanation:

A and C are ruled out because an opnion of scientist doesnt make the a law and B is not always true

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Which of the following statements is TRUE?
blagie [28]

Answer:

the correct answer is E

Explanation:

None of the options is correct, because entropy is the thermodynamic magnitude that indicates the degree of molecular disorder of a system, in exothermic processes energy or heat is released to the medium and energy is taken from the medium in endothermic processes, entropy if it depends of the temperature since the temperature is what sometimes determines if the process is spontaneous or not, and the delta universe in spontaneous processes is not always greater than zero, it is more frequently less than zero with negative values.

7 0
3 years ago
Consider the reaction between 15.0 mL of a 1.00 M aqueous solution of AgNO3 and 10.0 mL of a 1.00 M aqueous solution of K2CrO4.
Neporo4naja [7]

Answer:

Species present in the solution after complete reaction: K^+ ,CrO_4^- , Ag_2CrO_4 , K^+ ,NO_3^-

Explanation:

First balance the chemical equation,

2AgNO_3 + K_2CrO_4 =Ag_2CrO_4 + 2KNO_3

calculation of mili moles of each:

mili mole= volume in ml \times molarity

mili mole of AgNO3= 15mili mole;

mili mole of K2CrO4=10 mili mole;

From balance equation,

2 mili mole  of AgNO3 reacts with 1 mili mole of K2CrO4

hence 1 mili mole  of AgNO3 reacts with 0.5 mili mole of K2CrO4

15 mili mole  of AgNO3 reacts with 7.5 mili mole of K2CrO4

so only 7.5 milimole will be used in the reaction and 2.5 mili mole left in solution.

species present in the solution after complete reaction:

K^+ ,CrO_4^- , Ag_2CrO_4 , K^+ ,NO_3^-

K_2CrO4 , KNO_3 are soluble in water so it will dissociate in the solution

7 0
4 years ago
Calculate the number of molecules present in 11 moles of H2O.
DedPeter [7]

Answer:

11 \times 6.022 \times  {10}^{23}  \\  = 66.242\times  {10}^{23} \: of \:  \\ water \: molecules

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3 years ago
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2 years ago
What did Rutherford's model of the atom look like? a dense nucleus surrounded by electrons a random mixture of electrons and pro
RSB [31]

Answer:

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