Dropbox Homework 3

8. Convert 46.8°C to degrees Fahrenheit and Kelvin. 9. Convert 310.0K to degrees Celsius and degrees Fahrenheit 10. Convert 100.6°F to °C and K

17 What is the dollar value of a cube of gold measuring 2.00 inches on a side? Price of gold: $1366 per troy ounce Density of gold: 19.3 g/cm 31.1 g = 1 troy ounce 2.54 cm = 1 inch A. $1.11 x 10S B. $2.41 x 107 C. $2.98 x 104 D. $1.07 x 10% E. $5.96 x 106

3. In order to decide whether a property is chemical or physical, you must know whether a. measuring the property changes mass or energy b. chemical or physical changes occur when the property is measured c. the property involves matter or energy d. the property is intrinsic or extrinsic 4. The specific volume of a substance is the volume per gram of substance. Specific volume is an example of a. a physical, intensive property b. a chemical, extensive property c. a physical, extensive property d. a chemical, intensive property

Bud N. Chemist must determine the density of a mineral sample. His five trials yield densities of 5.15 g/cm3, 4.83 g/cm3, 5.08 g/cm3, 4.97 g/cm3, 5.12 g/cm3. Independent studies found the correct density to be 5.06 g/cm3. Which of the following is incorrect? a. The mean of his analysis is 5.03 g/cm3 indicating an error of 0.03 g/cm3 from the correct density B.His data has a standard deviation of 0.017 g/cm3 C.His data has a relative standard deviation of 2.60% D. He can report his analyzed density as 5.0±0.2 g/cm3 at a 95% confidence level E. The true value (population mean) is found within the confidence interval of Bud’s work

2. A thermometer reads 36, it is place inside the oven, after 1, 2 minutes the thermometer reads 60 and 82. Find the temperature inside the oven.

I’m not sure if my answer is correct, can someone show me how to do the problem?

Please answer question 13

Can you help me with questions 4, 5, 6, and 7 please?

1. A friend claims that a metric ton is more than twice the mass of an English ton because a kilogram is more than twice the mass of a pound. Make a quantitative argument in support of or against your friend's claim. (1 page) 2. Upgraded U.S. fuel economy standards formalized in 2012 call for a 54.5 mile-per-galloon average for new cars and light trucks in 2025. A politician opposing this increase claims it will save "only a drop in the bucket" compared with the 2014 fleet average of about 23 mpg. Formulate a counterargument showing that the increase - once the entire fleet reaches 54.5 mpg - consumption rate from its 2014 value of about 375 million gallons per day. State any additional assumptions you make.

Answer numbers 1-4. Thank you

Short Answer 2. Volume displacement is often used to determine the volume of irregularly-shaped objects. Several pieces of jewelry suspected to be made of the same metal were weighed and corresponding volumes were determined by volume displacement (Figure 3, Table 1). Answer the following questions regarding the jewelry samples. Assume the samples are made of only one metal. Shown in photo, I need help with parts A and B.

8.-Classify each statement as a law, a theory, an experiment, a hypothesis, an observation Birds evolved from dinosaurs. 1. 2. Hot air is less dense than cold air, probably because the components of hot air are moving more rapidly 3. The ingredients of Ivory soap were analyzed to see whether it really is 99.44 % pure , as advertised

Make a graph of the average mass vs. year. Make sure axes are labeled. Please please answer super fast please answer as fast as possible

Convert 20.0 milligrams to micro grams. (the symbol e represents "raised to the power of ") a) 2.00 x 10 e-4 micro grams b) 2.0 x 10 e10 micro grams c) 2 x 10 e-8 micro grams d) 2.00 x 10 e4 micro grams

Gaseous methane (CH4) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide (CO₂) and gaseous water (H₂O). Suppose 0.64 g of methane is mixed with 3.84 g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction. Be sure your answer has the correct number of significant digits. 8.0 0 x10 X S MacBook Air Submit © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center