How can you easily tell the density of an object compared to other objects? 1. You can drop them in a container of liquid together. The less dense object will float.
2. You can drop them in a container of liquid together. The denser object will float.
3. You can do a scratch test and measure hardness using the Mohs Hardness Scale.
4. You can put the objects on a scale one at time and measure the weight.

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal. b. he is determining chemical properties that are sufficient to identify the metal. c. he is determining physical properties that are insufficient to identify the metal. d. he is determining chemical properties that are insufficient to identify the metal.

Fossil fuels are organic compounds that are made from

T(s) in2os] (m) 0 185 2.39 546 1.90 725 1.70 the decomposition of n205 can be described by the equation 2.68 given these data for the reaction at 45°c in carbon tetrachloride solution, calculate the average rate of reaction for each successive time interval. ntr s to 185 s 185 s to 546 s 546 s to 725 s number number number reaction rate: m/s m/s m/s