Answer : C
Reason : The product is MgO which is Magnesium Oxide + CO2 which is carbon dioxide because of the 2
Explanation:
Changing the environment takes away habitats from animals and some nutrients plants need
Hope this helps :>
We live in the Milky Way Galaxy
Answer:
chemical or physical i dont know for sure i kniw i have learned this juat cant rember
Answer:
116 g
Explanation:
From the question given above, the following data were obtained:
Number of mole of calcium = 2.9 moles
Mass of calcium =.?
The mole and mass of a substance are related according to the following formula:
Mole = mass / molar mass
With the above formula, we can obtain the mass of calcium. This can be obtained as follow:
Number of mole of calcium = 2.9 moles
Molar mass of calcium = 40 g/mol
Mass of calcium =.?
Mole = mass / molar mass
2.9 = mass of calcium / 40
Cross multiply
Mass of calcium = 2.9 × 40
Mass of calcium = 116 g
Therefore, the mass of 2.9 moles of calcium is 116 g.
