The atomic mass of an element provides A. the number of protons and neutrons in an atom.
When the molarity = moles / volume
so, we need to get the moles of MgCl2:
when moles = mass / molar mass
so, by substitution:
∴ moles = 0.25g / 95.211g/mol
= 0.0026 moles
∴`the molarity = 0.0026 / 0.05L
= 0.052 M
Answer:
This is a substance that has definite composition
Explanation:
chemicals are substances that can not be broken down any further by physical process.it is a form of matter having a constant chemical characteristics and properties
Answer:
48.32KJ
Explanation:
Hfus x moles
(30.2) (1.6)=48.32
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The outermost structure that surrounds and supports plant and fungal cells should be A. Cell wall.