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Is it true or false for an ionic compound the name of the negative ion comes first?
False. In an ionic compound, the positive ion (typically a metal) is usually named first, followed by the negative ion (typically a nonmetal).
True or False The most abundant negative ion in extracellular fluid is calcium?
False. The most abundant negative ion in extracellular fluid is chloride, not calcium. Calcium is usually found as a positively charged ion in extracellular fluid.
Does poor sensitivity or poor specificity cause a false positive from the reaction between inoculating loop and hydrogen peroxide?
Poor specificity would likely cause a false positive reaction between an inoculating loop and hydrogen peroxide, as this would indicate a non-specific reaction occurring. In contrast, poor sensitivity would not directly cause a false positive in this context, rather it may result in a false negative if the test is not able to detect the presence of a specific target.
Can deoderant or hairspray cause a false pos on alcohol blood test?
Deodorant or hairspray typically do not contain alcohol in amounts significant enough to cause a false positive on an alcohol blood test. However, using an alcohol-based mouthwash shortly before a test could potentially lead to a false positive due to the alcohol content.
What cause false reading in hair testing when you no that you been doing drugs?
False readings in hair drug testing can occur due to external contamination from drug residues in the environment or from cosmetic products. However, if you know you have been using drugs and get a negative result, it could be due to various reasons such as low drug concentrations or drug use occurring outside the detection window of the test. It is essential to follow the proper specimen collection and testing protocols to minimize the risk of false readings.
