Answer:
An engineer that designs buildings is a structural engineer.
Hope this helps.
The ancient greeks thought that the earth was composed of earth, water, fire, and air.
Hope this helps you!
Option B: 4.3
There are following rules for rounding off numbers:
1. If the rounding digit has digit less than 5 (1,2,3 and 4) to its right, all the digits on right side of the rounding digit will drop out.
2. If the rounding digit has digit equal and greater than 5 (5,6,7,8 and 9) to its right, one is added to the rounding digit.
Jeff has to weigh 4.312 g sample of NaCl. To round off the underline number 4.<u>3</u>12, check for the digit right to it. It has 1, which is less than 5 thus according to the Rule 1, all the digits on right side of the rounding digit will drop out and the number gets rounded off to 4.3.
Therefore, 4.3 is most accurate measurement by Jeff.
<span> </span><span>Ionic compounds are
compound that contains ions held together by ionic bonds. They are made up of particles that are
arranged in a repeating pattern. Ions are said to be packed in a regular
crystalline structures in an arrangement with the least energy.</span>
