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3 years ago

What are table sugar and baking soda examples of

Chemistry

1 answer:

schepotkina [342]3 years ago

4 0

Answer:

Examples of pure substances include tin, sulfur, diamond, water, pure sugar (sucrose), table salt (sodium chloride) and baking soda (sodium bicarbonate). Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances that are chemical elements. All elements are pure substances.

Explanation:

PLEASE MARK ME AS BRAINLIEST

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What is true of an aqueous solution that is 15.0 percent HNO3 by mass?

djverab [1.8K]

Answer:

B. It contains 15.0 grams of HNO₃ per 100 grams of solution.

Explanation:

The percent of a solute in a solution is the mass of the solute (g) per 100 g of solution.

So, an aqueous solution that is 15.0 percent HNO₃ by mass means that It contains 15.0 grams of HNO₃ per 100 grams of solution.

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4 years ago

Read 2 more answers

MATCH THE TERM WITH THE DEFINITION:

arlik [135]

Weathering definition= wear away or change the appearance or texture of (something) by long exposure to the air.

Erosion definition= the process of eroding or being eroded by wind, water, or other natural agents.

Deposition definition= the action of deposing someone, especially a monarch.

these definitions are out of my textbook but in my own words.

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3 years ago

Read 2 more answers

IF YOU DO THIS CORRECTLY YOU WILL GET BRAINLIEST AND 20 POINTS

atroni [7]

22/30=0.734

18/50= 0.36

29/x=0.58=0.02

x/100=0.44 times 100= 44

6 0

3 years ago

SUMMARY: Write a 3-4 sentence summary about the Periodic Table.

denis23 [38]

Answer:

The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron setup, and repeating chemical properties. The structure of the table shows occasional (popular things/general ways things are going). The seven rows of the table, called periods, generally have metals on the left and nonmetals on the right. The columns, called groups, contain elements with almost the same chemical behaviours. Six groups have accepted names as well as assigned numbers: for example, group 17 elements are the halogens; and group 18 are the noble gases. Also displayed are four simple rectangular areas or blocks connected with the filling of different atomic orbitals.

Explanation:

i think that's what you're looking for...

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3 years ago

Which net ionic equation would match this description of a chemical reaction: When a

krok68 [10]

Answer:

$3Mg^{2+}(aq.)+2PO_{4}^{3-}(aq.)\rightarrow Mg_{3}(PO_{4})_{2}(s)$

Explanation:

$Mg(NO_{3})_{2}$ , $Na_{3}PO_{4}$ are strong electrolytes. Hence they are fully ionized in aqueous solution.

$Mg_{3}(PO_{4})_{2}$ is a sparingly soluble salt. Hence it remains undissociated in aqueous solution.

So, total ionic equation:

$3Mg^{2+}(aq.)+6NO_{3}^{-}(aq.)+6Na^{+}(aq.)+2PO_{4}^{3-}(aq.)\rightarrow Mg_{3}(PO_{4})_{2}(s)+6Na^{+}(aq.)+6NO_{3}^{-}(aq.)$

Net ionic equation is written by omitting spectator ions from total ionic equation.

Here, $Na^{+}$ and $NO_{3}^{-}$ ions are spectator ions as they remain present on both side of total ionic equation.

So, net ionic equation:

$3Mg^{2+}(aq.)+2PO_{4}^{3-}(aq.)\rightarrow Mg_{3}(PO_{4})_{2}(s)$

So, option (d) is correct.

6 0

3 years ago