compressibility - is a measure of the relative volume change of a fluid or solid as a response to a pressure (or mean stress) change. (D)
Flammability - ability of a chemical to burn or ignite, causing fire or combustion. (B)
Heat of Combustion - The amount of heat released per unit mass or unit volume of a substance when the substance is completely burned. (A)
Reactivity - the state or power of being reactive or the degree to which a thing is reactive (C)
Hope this helps!!
there are 92 naturally occuring elements
Answer:
false
Explanation:
It is called the periodic table because of the way the elements are arranged. You'll notice they're in rows and columns. The horizontal rows (which go from left to right) are called 'periods' and the vertical columns (going from up to down) are called 'groups'.
Answer:
Molecular formula = P₄O₁₀
Explanation:
Given data:
Empirical formula of compound = P₂O₅
Molar mass of compound = 426 g/mol
Molecular formula = ?
Solution:
Molecular formula:
Molecular formula = n (empirical formula)
n = molar mass of compound / empirical formula mass
Empirical formula mass= P₂O₅ = 283.89 g/mol
n = 426 g/mol / 283.89 g/mol
n = 2
Molecular formula = n (empirical formula)
Molecular formula = 2 (P₂O₅ )
Molecular formula = P₄O₁₀
