Answer:
6.696 g/cm3
Explanation:
From the question;
Mass = 17.41g
Volume of water before = 46.3 cm3
Volume of water after = 48.9 cm3
Volume of antimony = Volume after - Volume before = 48.9 - 46.3 = 2.6 cm3
Density = Mass / Volume
Density = 17.41 / 2.6 = 6.696 g/cm3
The answer should be B, it reacts in air to form a green layer.
Chemical properties means that how the substance that reacts with other substance to produce new substances. Usually it cannot be measured or observed just with the substance itself.
From all the options above, only B is a reaction. The green layer formed is a new substance produced by copper and air. It involves a chemical change.
Other options like boiling points or state of matter, these are physical properties. They do not require it to react to other substances and the can be measured and observed easily.
Yes because your not changing the identity of the substance
Answer:
Homemade soaps
Restaurant grade cleaners
Alcohol.
Explanation:
The two options are a mixture of more than one chemical constituents.
Soap is made from saponification reaction of of hydrocarbons and then mixed with other ingredients for better usability, and cleaning agent have one or more substances dissolved in another.
There should be 26.08 grams.
