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Afina-wow [57]
3 years ago
15

Which satement describes a physiscal property of matter? check all the apply.

Chemistry
1 answer:
Ymorist [56]3 years ago
8 0

A cumulus cloud is puffy and white.

Vinegar has a sour odour.

Water boils at 100 °C.

Each side of a cube measures 10 cm.

The above properties are all <em>physical properties</em> because you can observe them without changing the composition of the substances.

<em>A mixture of baking soda and vinegar produces gas</em> is incorrect because the baking soda changes into carbon dioxide and other substances.

<em>Iron rusts when exposed to water</em> is incorrect because the iron changes into rust.

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Why is alloy stainless steel used instead of pure iron for the ball of pen of pure iron for a ball of pen
Anna [14]

Answer:

so it want get so hot

Explanation:

so you want get burned

7 0
4 years ago
Draw a structure for a compound that meets the following description: An optically active compound, C5H10O with an IR absorption
Elenna [48]

Question: A optically active compound, C5H10O, exhibits IR absorption at 1730 cm-1.

Its carbon NMR shifts are given below. The number of hydrogen's at each carbon, determined by DEPT, is given in parentheses after the chemical shift.

13C NMR: δ 22.6 (3), 23.6 (1), 52.8 (2), 202.4 (1)

Draw the structure of this compound in the window below

Explanation:

3-methylbutanal is a butanal substituted by the methyl group at the 3rd position. It is a volatile constituent in the olive. Also, it is used as a flavoring agent and a plant metabolite, it is also a Saccharomyces cerevisiae metabolite. It is also called as the Isovaleraldehyde organic compound. The liquid is colorless at STP, and also found in very low concentrations. It is also seen to be produced commercially for different use. Mostly used compound reagent in the preparation of pharmaceuticals and pesticides.

5 0
4 years ago
A sample that contains aluminum is reacted with sulfuric acid according to the equation given below. When the aluminum dissolves
GrogVix [38]

Answer:

m_{H_2}=0.0574gH_2

Explanation:

Hello,

In this case, the information about the pressure, volume and temperature are enough to compute the mass of hydrogen assuming its ideal behavior:

n_{H_2}=\frac{PV}{RT}=\frac{739mmHg*\frac{1atm}{760mmHg}*0.722 L}{0.082 \frac{atm*L}{mol*K}*298.15K} =0.0287molH_2

The mass is:

m_{H_2}=0.0287molH_2*\frac{2gH_2}{1molH_2} \\m_{H_2}=0.0574gH_2

Best regards.

5 0
3 years ago
Which trait would most likely lead a scientist to repeat an experiment and verify the data?
Rama09 [41]
A scientist may repeat an experiment to make sure that results are reliable. An example would be if the test had a large variance in data gathered and no conclusions could be drawn.
3 0
3 years ago
What is computer hardware in short?​
Zinaida [17]

Answer:

<em>computer</em><em> </em><em>hardware</em><em> </em><em>is</em><em> </em><em>a</em><em> </em><em>collection</em><em> </em><em>of</em><em> </em><em>a</em><em> </em><em>physical</em><em> </em><em>part</em><em> </em><em>of</em><em> </em><em>a</em><em> </em><em>computer</em><em> </em><em>system</em><em> </em>

examples = CPU , monitor , mouse etc

5 0
3 years ago
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