Answer:
Precise, but not accurate
Explanation:
First, let’s define accuracy and precision.
⇒Accuracy: how close you are to the actual value
⇒Precision: how close the measurements are to each other.
Let’s examine the data given:
12.13 g, 12.12 g, 12.13 g, and 12.11 g
Each number is or is very close to 12.12 (within 0.1)
The actual mass of the object is 17.13 grams. Each measurement is about 5 grams away from the actual mass.
Since the measurements are very close to each other, but quite far from the true value, we can say the results are precise, but not accurate.
Carbonic acid ---> water + carbon dioxide
so it's the second option
B. A new material is formed
