Explanation:
It's using Newtons 1st Law which is that if an object is in motion, it will stay in motion. The water in the question is an example of Newtons 1st Law
Answer: I think its c or d
Explanation:
Correct answer: 3. ![Mg^{2+}(aq) + 2 F^{-}(aq) --> MgF_{2}(s)](https://tex.z-dn.net/?f=%20Mg%5E%7B2%2B%7D%28aq%29%20%2B%202%20F%5E%7B-%7D%28aq%29%20--%3E%20MgF_%7B2%7D%28s%29%20%20%20%20)
The given chemical reaction is between ammonium fluoride and magnesium chloride to form magnesium fluoride and ammonium chloride.
The balanced chemical equation representing the reaction will be,
![2NH_{4}F (aq) + MgCl_{2}(aq) -->MgF_{2} (s) + 2NH_{4}Cl (aq)](https://tex.z-dn.net/?f=%202NH_%7B4%7DF%20%28aq%29%20%2B%20MgCl_%7B2%7D%28aq%29%20--%3EMgF_%7B2%7D%20%28s%29%20%2B%202NH_%7B4%7DCl%20%28aq%29%20%20%20%20)
The complete ionic equation for the reaction: All the compounds soluble in water (aqueous) will split into ions,
will not split into ions as it is insoluble in water.
![2 NH_{4}^{+}(aq) + 2 F^{-}(aq) + Mg^{2+}(aq) + 2 Cl^{-}(aq) --> MgF_{2}(s) + 2 NH_{4}^{+}(aq) + 2 Cl^{-}(aq)](https://tex.z-dn.net/?f=%202%20NH_%7B4%7D%5E%7B%2B%7D%28aq%29%20%2B%202%20F%5E%7B-%7D%28aq%29%20%2B%20Mg%5E%7B2%2B%7D%28aq%29%20%2B%202%20Cl%5E%7B-%7D%28aq%29%20--%3E%20MgF_%7B2%7D%28s%29%20%2B%202%20NH_%7B4%7D%5E%7B%2B%7D%28aq%29%20%2B%202%20Cl%5E%7B-%7D%28aq%29%20%20%20%20)
The net ionic equation will be:
![Mg^{2+}(aq) + 2 F^{-}(aq) --> MgF_{2}(s)](https://tex.z-dn.net/?f=%20Mg%5E%7B2%2B%7D%28aq%29%20%2B%202%20F%5E%7B-%7D%28aq%29%20--%3E%20MgF_%7B2%7D%28s%29%20%20%20%20)
Here the spectator ions are ![NH_{4}^{+} and Cl^{-}](https://tex.z-dn.net/?f=%20NH_%7B4%7D%5E%7B%2B%7D%20and%20Cl%5E%7B-%7D%20%20%20%20)
Answer:Explanation:The higher the frequency, the faster the oscillations and thus the higher the energy. Therefore, the highest-frequency ultra-violet light (or the lowest wavelength) is violet. However, the highest-frequency visible light would have to be roughly blue.
Answer:
0.52 mol
Explanation:
Using the general gas equation formula:
PV = nRT
Where;
P = pressure (atm)
V = volume (Liters)
n = number of moles (mol)
R = gas law constant (0.0821 Latm/molK)
T = temperature (K)
At STP (standard temperature and pressure), temperature of a gas is 273K, while its pressure is 1 atm
Using PV = nRT
n = PV/RT
n = (1 × 11.74) ÷ (0.0821 × 273)
n = 11.74 ÷ 22.41
n = 0.52 mol
There are 0.52 moles in the basketball