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Which of the following properties is a chemical property?(1 point) Responses flammability flammability melting point melting point magnetism magnetism hardness hardness Skip to navigation page 7 of 7
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g
Which of the following substances is a compound?(1 point) Responses gold (Au) gold (Au) oxygen (O) oxygen (O) carbon (C) carbon (C) water (H2 O)
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g
Which of the following substances is an element?(1 point) Responses hydrogen hydrogen salt salt insulin insulin protein
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g
Which of these properties is a chemical property?(1 point) Responses magnetism magnetism melting point melting point flammability flammability hardness
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g
The chemical formula for methane is CH 4 . What is the fixed ratio of carbon (C) to hydrogen (H)?(1 point) Responses 1:1 1:5 4:5 1:4
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GPT-4o mini
The property that is a chemical property among the options provided is **flammability**. Flammability refers to the ability of a substance to catch fire and burn, which involves a chemical change. The other properties listed (melting point, magnetism, and hardness) are physical properties.
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GPT-4o mini
The substance that is a compound among the options provided is **water (H₂O)**. Water is composed of two hydrogen atoms and one oxygen atom, chemically bonded together, making it a compound. Gold (Au), oxygen (O), and carbon (C) are all elements, not compounds.
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GPT-4o mini
The substance that is an element among the options provided is **hydrogen**. Hydrogen is a pure chemical substance that cannot be broken down into simpler substances by chemical means, making it an element. Salt, insulin, and protein are all compounds made up of multiple elements.
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GPT-4o mini
The property that is a chemical property among the options provided is **flammability**. Flammability refers to the ability of a substance to ignite and burn in the presence of oxygen, indicating a chemical change. The other properties listed (magnetism, melting point, and hardness) are physical properties.
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GPT-4o mini
The fixed ratio of carbon (C) to hydrogen (H) in methane (CH₄) is **1:4**. This means that for every one carbon atom, there are four hydrogen atoms.
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