Nick's Final Exam Orgo Lab

covert  1 x 10^3 to standard notation

Convert to particles: 425 g platinum to atoms

Is the melting point of a chemical a physical property or chemical property

What is a chemical property of a matter

A. Characteristics of Elements, Compounds, and Mixtures 1. Complete the table: Color Luster Element Physical State iron sulfur mercury magnesium

What is correct from multiple choice

The following picture represents.. Mixtures of elements Mixtures of compounds Molecules of elements O Mixture of compounds and elements O O O

I'm confused. Please help.

Balance the following equations by entering coefficients for each blank.___ C8H18S(l) + ___ O2(g) ⟶ ___ CO2(g) + ___ H2O(g) + ___ SO2(g)

Sample of Substance X Change 1 Change 2 Change 3 Change 1 is: Change 2 is: Change 3 is: impossible a physical change O Impossible impossible a physical change a chemical change a physical change a chemical change a chemical change

Which property of rubbing alcohol is a chemical property?a) density (0.786 g/cm3)b) flammabilityc) boiling point (82.5 °C)d) melting point (-89 °C)

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Name these using E/Z or RIS

Consider the following choices when answering questions 86-89. b) d) 80 80 80 080808 808080 080808 808080 080808 D c. option c d. option d e. option e D 86. Which best represents a homogeneous mixture of an element and a compound? a. option a b. option b c. option c d. option d e. option e 89. Which best represents a heterogeneous mixture of two elements? a. option a b. option b

If you place a glass rod over a burning candle, the glass appears to turn black. What is happening to each of the following (physical change, chemical change, both, or neither) as the candle burns? Explain each answer a. the wax ____________________________________________________________ ____________________________________________________________ b. the wick ____________________________________________________________ ____________________________________________________________ c. the glass rod ___________________________

12. What is an element? A compound?

Copper pennies Pour about 2 Tbs of vinegar into the bowl and add a 4 tsp of salt stir it up. Put about 5 pennies into the bowl and count the pennies to sit in the vinegar salt mixture for 5 minutes. Take out the pennies and rinse them out in some water. 1. What happens to the pennies? 2. Is it a physical or chemical change? Explain.

Air is homogeneous because * A: there is not blue air nor red air. B: it is a gas. C: the composition is uniform throughout all of it.

14. What is the definition of a physical property? What is the definition of a chemical property?

Provide a short description of multiplicity and give an example of how it relates to someone life. 150 words minimum

Classify the following as physical or chemical change Opening a can of soda and letting the gas burst out_________ Exploding fireworks___________ Melting 2 metals__________ Boiling oil___________

4. Classify each substance by composition, first as mixture (MX) or a pure substance (PS): sugar granite bronze helium stainless steel Then each MX classify as physically homogeneous (hmg) or heterogeneous (htg), and each PS classify as element (E) or compound (C). For example: soil MX, htg water PS, c_

The first box is the key. The second box represents.... 00 00 00 00 00 0 00 OO OO Atom Y: O Atom Z: • A Mixture A Pure substance An Element O Compounds 8:8

what is the definition of a single replacement

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Determine whether the following is a physical or chemical change. Explain. 1. powering a flashlight 2. heating water for tea 3. burning wood