"16" is the number of valence electrons among the following choices given in the question that the Lewis <span>dot structure for a CO2 molecule uses. The correct option among all the options that are given in the question is the fourth option or the last option. I hope that this is the answer that has come to your help.</span>
Based on the aforementioned measurements, the following applies;
- The measurements are not accurate
- The measurements are precise
<h3>What is accuracy and precision?</h3>
Accuracy is the exact conformity to truth, or to a rule or model or the degree of conformity of a measure to a true or standard value.
Precision is the ability of a measurement to be reproduced consistently or the closeness of measured values.
According to this question, the following measurements were made to determine the density of a material whose value was 3.75 g/mL
- Trial #1 - 4.75 g/mL
- Trial #2 - 4.76 g/mL
- Trial #3 - 4.74 g/mL
Based on the above measurements, the following applies:
- The measurements are not accurate because they are not close to the value of the handbook
- The trial measurements are precise because they are close to one another.
Learn more about precision and accuracy at: brainly.com/question/15276983
#SPJ1
Answer:
One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.
Explanation:
Saturn's rings are made of ice and rock. These pieces vary in size. Some are as small as a grain of sand. Others are as large as a house. The rings of Saturn are the most extensive ring system of any planet in the Solar System. They consist of countless small particles, ranging in size from micrometers to meters, that orbit around Saturn. They are found around the planet