In three separate trials and under the same conditions, you measure a gas's density to be 2.865 kg/m^3, 2.852 kg/m^3, and 2.860 kg/m^3. The actual density of the gas is3.214 kg/m^3. Evaluate the precision and accuracy of your measurement.

98 ! and brainliest plz ! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

Compare and contrast physical changes with chemical changes.