Answer:
22.2 g of MgF₂
Explanation:
We star from the reaction:
NaF → sodium fluoride
Mg → Magnesium
2NaF + Mg → MgF₂ + 2Na
2 moles of sodium fluoride react to 1 mol of Mg in order to produce 1 mol of magnesium fluoride and 2 moles of sodium.
We convert mass of the reactant to moles:
30 g . 1mol / 41.98 g = 0.715 mol
We assume that Mg is in excess
As ratio is 2:1, if we have 0.715 moles of NaF we may produce the half of moles, of MgF₂
0.715 mol /2 = 0.357 moles of MgF₂
We convert moles to mass: 0.357 mol . 62.30g /mol = 22.2 g
Answer: The steepness of a ramp affects it by making it easier or harder.
Explanation: It's a bit situational. If you were going up a steep ramp with a heavy load, it will increase the work necessary, whereas if you were going down a ramp, it would decrease the work necessary. If you need this simply put, think about biking up and down a hill. It would be easier going down than up.
A closed economy<span> is self-sufficient, meaning no imports are brought in and no exports are sent out, the goal being to provide consumers with everything they need from within the </span>economy's borders. An example would be how <span>Brazil's is an unusually </span>closed economy<span> as measured by trade penetration, with exports plus imports equal to just 27.6 per cent of GDP in 2013.</span>
I believe the answer for the above question is liquid metallic hydrogen..
Jupiter is composed predominantly of hydrogen and helium, the massive Jupiter is much like a tiny star. Jupiter's strangest feature, may be a 25,000 mile deep soup of exotic fluid sloshing around its interior called liquid metallic hydrogen.
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Ammonia, because it’s a polar molecule, will get attracted to the hydrophilic end while the vegetable oil (non-polar) will interact with the hydrophilic end. Both, therefore have the capacity to dissolve in soap due to the amphipathic properties of soap.
Explanation:
Soap can be categorized as having amphipathic properties. Soap can be composed of fatty-acid chains co-joined with sodium/potassium ions. The fatty acid chains act as hydrophobic ends while the fatty acid acts as the hydrophilic end. This is why soap is a good washing agent The hydrophilic end attached to the ‘dirt’ that needs to be washed away, while the hydrophilic end interacts with the water molecules. Rinsing then washes away the soap including the ‘dirt’.
Learn More:
For more on soap chemistry check out;
brainly.com/question/13054177
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