Exam 1_Question 16 The shot distribution on the target is best described as

To how many significant figures should each answer be rounded?Equation A: (6.626×10-34 J·s) (2.9979×108 m/s)4.610×10-7 m=4.308912234273×10-19 J (unrounded)After rounding, the answer to equation A should have

Water covers the majority of the Earth’s surface and is necessary to sustain life.Which property is considered a chemical property of water?

Which of the mixtures is homogeneous?

Determine the number of significant figures in the number 0.0141869.

Which is considered a physical property of copper?

A student experiments to determine the density of a sugar solution. She obtains the following results: 1.71gmL, 1.73gmL, 1.67gmL, 1.69gmL. If the actual value for the density of the sugar solution is 1.40gmL, which statement below best describes her results?

In the late 1700s, scientists found that the volume that a gas occupies is directly proportional to its temperature: the lower the temperature, the smaller the volume. This finding was true for a wide variety of gases.Is this statement a hypothesis, a theory, or a law?

Which of these mixtures is heterogeneous?

A student wishes to convert 4351 milliliters to liters. Which calculation would give the correct answer?