Answer:
Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form.
Explanation:
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Answer:
Temperature measures thermal energy (kinetic energy), and heat is the flow of thermal energy.
Explanation:
Answer:
79 g/mol
Explanation:
Mass of unknown metal deposited = 3.137 g - 1.4 g = 1.737 g
Number of moles of metal deposited = 0.022 moles
Since;
Number of moles = reacting mass/molar mass
Molar mass = reacting mass/number of moles
Molar mass = 1.737 g/0.022 moles
Molar mass= 79 g/mol
Answer:
The empirical formula would be AlCl₃
Explanation:
The ratio of number of moles of each reacted specie can help to determine the empirical formula
moles of Al
moles of Cl
Ratio of moles
Empirical formula
Calculation shows that the number of moles of chlorine are three times higher than aluminium, hence empirical formula would be AlCl₃
C. The mass number is the amount of Protons and electrons there are combined, so 200 - 80 is 120.
