Magnesiumchloride is formed when a magnesium atom donates one electron each to two chlorine atomsto form magnesium ions and chloride ions.
Ionic compounds are compounds which are formed between oppositely charged ions.
The negatively-charged ions are formed by electron gain from the positively-charged ions.
In the magnesium chloride salt, a magnesium atom donates one electron each to two chlorine atoms.
The ions are held together by strong electrostatic forces of attraction to form the ionic compound.
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Answer:
The magnesium atom loses 2 electron to the 2 atoms of chlorine. The 7 valency electrons of each chlorine atom will now be 8 to attain stable configuration. The final compound is written as MgCl2.
Explanation:
Ionic compounds are compound formed from the transfer of electron(s). One atom of the element loses electron(s) while the other atom gains electron(s).
The compound Magnesium chloride is an ionic compound . The bond between an atom of magnesium and 2 atoms of chlorine is an ionic bonding.
The valency electron of magnesium is 2 electron , for the atom of magnesium to attain octet rule, it will easily lose it 2 electrons to the chlorine atoms.
The chlorine atom on the other hand has 7 valency electrons, to attain octet configuration it will most likely gain 1 electron to become stable.
The magnesium atom loses 2 electron to the 2 atoms of chlorine. The 7 valency electrons of each chlorine atom will now be 8 to attain stable configuration. The final compound is written as MgCl2.
Answer:
It would take 3.11 J to warm 3.11 grams of gold
Explanation:
Step 1: Data given
Mass of gold = 3.11 grams
Temperature rise = 7.7 °C
Specific heat capacity of gold = 0.130 J/g°C
Step 2: Calculate the amount of energy
Q = m*c*ΔT
⇒ Q = the energy required (in Joules) = TO BE DETERMINED
⇒ m = the mass of gold = 3.11 grams
⇒ c = the specific heat of gold = 0.130 J/g°C
⇒ ΔT = The temperature rise = 7.7 °C
Q = 3.11 g * 0.130 J/g°C * 7.7 °C
Q = 3.11 J
It would take 3.11 J to warm 3.11 grams of gold
2. The solid phase is relatively soluble.
3. The chemical reaction proceeds readily to the right.
4. The chemical reaction proceeds readily to the left.
Values of Ksp greater than 1.0 infer that the solid phase is relatively soluble. The answer is number 2. If Ksp is less than 1 then the solid phase is relatively insoluble.
B. oxygen
C. ore
D. hydrogen
Answer;
- Oxygen
-Ancient cyanobacteria released oxygen, which assisted in creating the atmosphere as we know it today.
Explanation;
-The oxygen atmosphere that we depend on was generated by numerous cyanobacteria during the Archaean and Proterozoic Eras.
-Cyanobacteria are aquatic and photosynthetic, meaning they live in the water, and can manufacture their own food. During the process of photosynthesis, energy from sunlight is used together with carbon (iv) oxide and water to form organic molecules that serve as nutrients for the organisms and also oxygen gas is released to the atmosphere.
A. AlCl3 + H2 Al + HCl
B. Al + HCl AlCl3 + H2
C. Al HCl + AlCl3 + H2
D. Al + HCl AlCl3 + H2O
B. Al +HCI AICI3 +H2. I hope this helps