Answer:
Knowing others is intelligence; knowing yourself is true wisdom. mastering others is strength; mastering yourself is true power. if you realize that you have enough, you are truly rich, "And the cause of not following your heart, is in spending the rest of your life wishing you had."
Explanation:
I need points so SORRY!
Answer:
The element iodine forms an anion with the charge -1. The symbol for this ion is I⁻¹, and the name is iodide. The number of electrons in this ion is 7.
Explanation:
Hello,
In this case, we have to consider iodine has the capacity to accept the electrons lost by other elements such as metals or hydrogen by becoming negatively charged. Such phenomena makes iodine to form an anion (negatively charged) with the charge -1, since it only needs one electron to attain the octet. Moreover, the symbol of such ion is I⁻¹ and its name is iodide. By cause of the aforementioned, the number of electrons it has is 7 since at its outer shell seven electrons are found (see electron configuration Kr,5s²,5p⁵).
Best regards.
Answer:
132 g
Explanation:
Given data:
Mass of silver nitrate react = 260 g/100×80 = 208 g
Mass of silver metal produced = ?
Solution:
Chemical equation:
Cu + 2AgNO₃ → 2Ag + Cu(NO₃)₂
Number of moles of AgNO₃:
Number of moles = mass/molar mass
Number of moles = 208 g/ 169.87 g/mol
Number of moles = 1.22 mol
Now we will compare the moles of silver with solver nitrate from balance chemical equation.
AgNO₃ : Ag
2 : 2
1.22 ; 1.22
Mass of Ag:
Mass = number of moles × molar mass
Mass = 1.22 mol × 107.8682 g/mol
Mass = 132 g
Answer:
Mass = 0.139 kg
Explanation:
There is a formula in terms of force, acceleration and mass which is:
Force = mass × acceleration
Put the values into the formula.
5 = m × 36
m = 5 ÷ 36
<u>m = 0.139 kg</u>