<h2>
Answer:It always contains certain elements,It always contains elements in definite proportions.,It cannot contain atoms from more than one element.</h2>
Explanation:
The mineral need not occur always in a pure form.On purification we get the exact chemical composition.
The mineral always has a definite chemical composition which means the number of elements and types of elements in the mineral does not change.
Since the mineral has definite composition,the elements in the mineral has definite proportions.
The mineral can be a compound.So,there can be atoms from more than one element.
Answer:
548.089 J
Explanation:
-The molar mass of copper is 63.546 grams.
-We obtained the mass of 0.762 moles of copper:
-We apply the specific heat formula to calculate the amount of heat released:
Hence, the amount of heat released is 548.089 J
Answer:
B) The theoretical yield is the amount of product that can be made based on the ... C) The limiting reactant is completely consumed in a chemical reaction. D) The actual yield is the amount of product actually produced by a chemical reaction. ... NH3 + 5 O2 → 4 NO + 6 H2O, if 3.00 mol NH3 were made to react with excess of.
Explanation:
MORE POWER
POPULATION SIZE DECREASE
Population size can increase, but it can also decrease.
We know that amount of resources available affects the population size.
Natural disasters such as floods,fires,volcanic eruptions, can also affect the population size.
Sometimes the population size will decrease so much that it threatens the entire species.