ATI TEAS Science

Correct Answer: B

Rationale: A neutralization reaction involves the combination of an acid and a base to produce a salt and water. This type of reaction is characterized by the formation of a salt through the exchange of ions. In contrast, oxidation reactions involve the loss of electrons, synthesis reactions involve the combination of substances to form a new compound, and decomposition reactions involve the breakdown of a compound into simpler substances. Therefore, the correct answer is B because it specifically results in the production of a salt.

Correct Answer: B

Rationale: To find the molarity, we first need to calculate the moles of NaCl. Moles = mass / molar mass = 4.0g / (23.0g/mol + 35.5g/mol) = 0.056 moles. Next, we convert the volume to liters (120mL = 0.120L). Finally, molarity = moles / volume = 0.056 moles / 0.120L = 0.57 M (Choice B). Incorrect choices: A: 0.34 M - Incorrect calculation of moles or volume. C: 0.034 M - Incorrect calculation of moles or volume. D: 0.057 M - Incorrect conversion of volume to liters.

Correct Answer: A

Rationale: The correct answer is A: They're both accurate and precise. Rationale: 1. Accuracy: The measurements are close to the accepted value of 9.8 m/s^2, with a range of 9.78-9.81 m/s^2. 2. Precision: The measurements are consistent and clustered closely around the true value, indicating precision. 3. The slight variations in measurements are expected due to experimental error but still fall within an acceptable range. In summary, the measurements are accurate as they are close to the true value, and they are precise as they are clustered closely together. Other choices are incorrect because they do not accurately reflect the situation based on the provided data.

Correct Answer: D

Rationale: The correct answer is D because the autonomic nervous system (ANS) indeed contains both parasympathetic and sympathetic nerves. The ANS regulates involuntary functions such as heart rate, digestion, and respiratory rate. A: While A is partially correct, it does not encompass the full scope of the ANS functions. B: B is incorrect as the ANS primarily consists of efferent neurons that carry motor signals from the central nervous system to target organs. C: C is incorrect as the ANS consists of efferent neurons that carry signals away from the central nervous system to target organs, not sensory neurons.

Correct Answer: A

Rationale: Platelets are responsible for clotting by forming a plug at the site of injury. They release chemicals to initiate clotting cascades. Red blood cells transport oxygen, antigens are markers on cells, and plasma cells are involved in immune response, not clotting. Therefore, the correct answer is A.