Which of the following is a physical property of a substance?? A. Combustion B. Corrosion C. Tendency to tarnish D. Solubility

2 answers:

6 0

A physical property does not change the substance.

Solubility would be the answer since all of the rest are changing the substance. They all deal with bonds except solubility.

Answer: D. Solubility

Vinvika [58]3 years ago

5 0

<span>A physical property is any property that does not concern with the change of the substance. The changes in the physical property can be used to describe its transformations or evolutions from its initial state. They are often referred to as observables. Solubility is an example of a physical property. The solubility of substance describes a state of a dissolving a powdered form in a liquid. Combustion, Corrosion and tendency to tarnish are examples of a chemical change. They are substances that changes its physical state and composition resulting from a chemical reaction</span>

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A blank is a substance that is made by combining two substances

Simora [160]

Do you mean; " A blank is a substance that is made by combining two elements?" (I'm not sure if substances is the right term)

If so then the blank is a compound.

7 0

3 years ago

When 2.3 × 10^3 g of CaCO3 are heated, the actual yield of CaO is 1.09 × 10^3g. What is

iren [92.7K]

The percent yield : 4. 84.58%

<h3>Further explanation</h3>

Reaction

CaCO₃ ⇄ CaO+CO₂

mass CaCO₃ = 2.3 × 10³ g

mol CaCO₃ (MW=100.0869 g/mol) :

$\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{2.3\times 10^3}{100,0869}\\\\mol=22.98$