For a chemical reaction to take place between reactants, they must:

A. collide.
B. collide with proper orientation and have sufficient energy to react.
C. have a catalyst present.
D. be at a very low temperature.


Answer: B

Health Professions

You might also like to view...

Which one of the following statements about blood pressure is true?

A) The diastolic blood pressure is the first sound heard when auscultating blood pressure. B) The systolic blood pressure cannot be detected when palpating blood pressure. C) The systolic blood pressure is the first sound heard when auscultating blood pressure. D) Both the systolic and diastolic blood pressures are recorded when blood pressure is obtained by palpation.

Health Professions

The average normal blood pressure reading for an individual who is 10-15 years of age is ________.

A. 90/55 B. 100/65 C. 118/76 D. 119/78

Health Professions

The code used to report an open biopsy of the right gastrocnemius muscle is code ____________.

Fill in the blank(s) with the appropriate word(s).

Health Professions

Immediately following a generalized seizure involving tonic-clonic activity, most patients:

A) are unresponsive but gradually regain consciousness. B) return to a normal level of consciousness but cannot recall the event. C) experience prolonged apnea and require positive-pressure ventilations. D) have a slow heart rate because of cardiac depression during the seizure.

Health Professions