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VikaD [51]
3 years ago
6

Describe as fully as you can what happens when magnesium reacts with iodine to make magnesium

Chemistry
1 answer:
vazorg [7]3 years ago
7 0

Answer:

I think the Magnesium loses 2 electrons and forms a Mg2+ ion. Iodine gains 1 electron and forms an I- ion

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On heating 5.03 g of hydrated barium chloride (BaCl2 XH2O), 4.23 g is left behind. What is the name of this hydrate? (
RSB [31]

<span>1)    </span><span>Deduce the two masses and see the amount of water was driven off when heated: </span><span>

<span>5.03 g - 4.23 g = 0.8 g H2O given off </span>

<span>2) Change mass from grams to moles of H2O: </span>

<span>0.8 g H2O / 18 g H2O in 1 mole = 0.044 mol H2O </span>

<span>3) Change left over mass to moles  of BaCl2 .</span></span>

<span>
<span>4.23 g BaCl2 / 207 g BaCl2 in 1 mol = 0.021 mol BaCl2 </span>

<span>4)Find the ratio of mol H2O to mol BaCl2: </span>

<span>0.044 mol H2O : 0.021 mol BaCl2 </span>

<span>5) The resulting  ratio is  2:1 so two H2O for each BaCl2, thus,  the hydrate was named: </span>
<span>Barium chloride di-hydrate</span></span>

8 0
3 years ago
What does conserving mass mean in a chemical equation?
AleksandrR [38]
I would say that what conserving mass in a chemical equation means is that C. There is equal number of each type of atom on the reactant side and product side.
The equation is equal and no material is lost or gained.
4 0
3 years ago
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With solutions of strong acids and strong bases, the word strong refers to
Damm [24]

Answer:

The strong refers to how dangerously powerful the solution is

4 0
3 years ago
Answer plss really appreciate it
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No. Only the state is changed.
6 0
3 years ago
When comparing the two chair conformations for a monosubstituted cyclohexane ring, which type of substituent shows the greatest
Klio2033 [76]

Large substituents will chose equatorial conformation over axial conformation more readily.

<h3><u>Explanation</u>:</h3>

The axial conformation of the monosubstituted cyclohexane molecule is the Conformation where the substituted group is located along the axis of the molecule, perpendicular to the plane of the molecule. The equatorial conformation on the other hand is the substituted group being aligned along the plane of the molecule.

Now, in the axial position, the large groups will face steric hindrance with the axial hydrogens of the other carbon atoms which will lead the molecule more unstable. So larger is the group, more is the steric hindrance. So larger group will prefer the equatorial conformation more readily than the axial conformation.

6 0
3 years ago
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