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Chemistry, 23.06.2019 02:00
What is the source of continuous heat and energy that we receive from the sun
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Chemistry, 23.06.2019 04:50
The diagin dilutepage 6 of 12a6a5(a)fluorine, chlorine, bromine and iodine are placed in the same group of theperiodic table.state the common name used to describe elements in this group.(i)state the group in which the elements are placed and explain whythey are placed in that group.(ii)which of the above named elements is a solid at roomtemperature and pressure?
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Chemistry, 23.06.2019 10:20
El amoniaco y el fluor reaccionan para formar tetrafluoruro de dinitrogeno y fluoruro de hidrogeno. segun la reaccion: nh3 + f2 ⇒ n2f4 + hf si reaccionan 5 gramos de amoniaco y 20 gramos de fuor, ¿cuantos gramos de fluoruro de hidrogeno se producen?
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Chemistry, 24.06.2019 00:30
The ksp of srso4 is 3.2 × 10–7. what is the equilibrium concentration of sulfate ion in a 1.0-l solution of strontium sulfate to which 0.10 mol of sr(ch3co2)2 has been added? a. 3.2 × 10–8m b. 3.2 × 10–6m c. 5.7 × 10–4m d. 8.0 × 10–4m
Answers: 1
What is the area of triangle ABC with vertices A(x¹,y¹), B(x²,y²)and C (x³,y³)...
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