The Density of a Liquid Is Determined by Successively Weighing

question 50

Multiple Choice

The density of a liquid is determined by successively weighing 25,50,75,100,and 125 mL of the liquid in a 250-mL beaker.
-If volume of liquid is plotted along the horizontal axis,and total mass of beaker plus liquid is plotted on the vertical axis:

• A)The x,or horizontal,intercept is the negative value of the weight of the beaker.
• B)The y,or vertical,intercept is the weight of the empty beaker.
• C)The slope of the line is 1.0.
• D)The line will pass through the origin.
• E)The slope of the line is independent of the identity of the liquid.

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Definitions:

IgD

A class of antibodies that play a role in the immune system's response to antigens, mainly found on the surface of B cells.

Secondary Immune Response

The enhanced immune response elicited upon a second or subsequent exposure to a specific antigen, providing quicker and more effective protection.

Memory Cells

Long-lived immune cells that "remember" past infections, allowing for a faster and stronger response upon re-exposure to the same pathogen.

Latent Period

The time interval between exposure to a pathogen or initiating event and the onset of symptoms or disease.