<span>Observation is an important part of investigation.Small evidence may become the key factor for success. Observation is the active acquisition of information from a primary source. In living beings, observation employs the senses. In science, observation can also involve the recording of data via the use of instruments. The term may also refer to any data collected during the scientific activity.</span>
Answer:
3) Q = -836.8 J.
4) Q = 950J.
Explanation:
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In this case, for those calorimetry problems, we use the general equation:
Thus, we proceed as follows:
3) Here, the temperature difference is from 80 °C to 40 °C, the mass is 5.0 g and the specific heat 4.184 in SI units; thus, the heat is calculated as follows:
4) Here, the temperature difference is from 100 °C to 200 °C, the mass is 5.0 g and the specific heat about 1.90 in SI units; thus, the heat is calculated as follows:
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The surface area affects evaporation because the more area exposed to air allowing water to acquire more heat energy hope this helps :)
Answer:
petroleum, a fossil fuel, is extracted from the earth and mechanically transformed into fibers for clothing.
Explanation:
synthetic materials, like polyester, nylon and acrylic, don't exist naturally but are made in factories. Synthetics are created through an industrial manufacturing process in which
Answer:
C. Carbon monoxide
This is my answer tell me if wrong
