determine which type of property each statement describes by typing \physical\ or \chemical\ in the blank…

determine which type of property each statement describes by typing \physical\ or \chemical\ in the blank. hydrogen is a colorless, tasteless, and odorless gas. hydrogen is very combustible in the presence of oxygen. hydrogen is very reactive with most elements. hydrogen is the least dense of all elements.
Answer
Explanation:
Step1: Analyze first statement
Color, taste, and odor are physical - observable properties without changing the substance's chemical identity. So, "Hydrogen is a colorless, tasteless, and odorless gas" describes a physical property.
Step2: Analyze second statement
Combustibility in the presence of oxygen involves a chemical reaction (burning), which changes the chemical identity of hydrogen. So, "Hydrogen is very combustible in the presence of oxygen" describes a chemical property.
Step3: Analyze third statement
Reactivity with most elements implies a chemical change occurs when hydrogen reacts with other elements. So, "Hydrogen is very reactive with most elements" describes a chemical property.
Step4: Analyze fourth statement
Density is a physical property as it is a measurable characteristic of hydrogen without changing its chemical composition. So, "Hydrogen is the least dense of all elements" describes a physical property.
Answer:
physical chemical chemical physical