Q. 3.9 - An Introduction to General, Organic, and Biological Chemistry

Question

Describe each of the following as a physical or chemical property:

a. Chromium is a steel-gray solid.

b. Hydrogen reacts readily with oxygen.

c. A patient has a temperature of $40.2°C$.

d. Milk will sour when left in a warm room.

e. Butane gas in an igniter burns in oxygen.

Step-by-Step Solution

Answer

a. Chromium is a physical property

b. Hydrogen is a chemical property

c. A patient has a temperature of $40.2°C$ is a  physical property

d. Milk will sour is a  chemical property 

e. Butane gas is a chemical property 

Step 1: Given Information (a)

(a) The Chromium is a physical or chemical property.

Step 2: Explanation (a)

a. Chromium is identified by color. Therefore, it's a property.

Step 3: Given Information (b)

(b) The Hydrogen is a physical or chemical property.

Step 4: Explanation (b)

b. Hydrogen when reacts with oxygen, it forms a brand new compound. Hence, it's property.

Step 5: Given Information (c)

(c) The Patient has a temperature of $40.2°C$ is a physical or chemical property. 

Step 6: Explanation (c)

c. Temperature is measured without changing the identity. Therefore, it's a property.

Step 7: Given Information (d)

(d) The Milk sour is a physical or chemical property. 

Step 8: Explanation (d)

d. When left in an exceedingly warm room, milk undergoes some natural process and becomes sour. there's a change within the identity of the substance. Hence, it's a property.

Step 9: Given Information (e)

(e) The Butane gas is a physical or chemical property. 

Step 10: Explanation (e)

e. Butane gas reacts with oxygen in an igniter to create new products, so it's a property.