Magnesium chloride solution can be reduced by calcium as calcium is more reactive than magnesium.: 1Write a word equation for this reaction including state symbols
2Construct a balanced equation for this reaction
3Write a half equation for the reduction of the magnesium ions
4Explain why this process is reduction
5Explain fully why calcium is more reactive than magnesium in terms of electron structure

i believe it is-

d.) gravity pulled particles of dust and gas together to form planets.

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

some sources quote the lethal dose, for an average 170lbs opiate-naive individual is between 75 and 375 mg

since electrons are negative the answer is neagtaive