1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
erastova [34]
3 years ago
11

A student is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. At which location

in this periodic table would the element most likely be found?

Chemistry
2 answers:
KengaRu [80]3 years ago
6 0

Answer: 3, just took the test

Explanation:

disa [49]3 years ago
3 0

Answer:

Far right

Explanation:

The qualities indicated here are of the element Sulphur (S) and any element of same qualities i.e color pale yellow, nature solid, electrical conductivity none, should be placed at far right corner of the periodic table or position 3 mentioned in the attached picture.

Hope it help!

You might be interested in
What is the purpose of a
Vlada [557]

Answer:

B. Holding spores

Explanation:

B is the answer

3 0
2 years ago
Matter that is composed of two or more different elements chemically combined in a fixed proportion is classified as...
Lilit [14]
It's called a compound because different elements are held together by a chemical bond.
4 0
3 years ago
How many moles of sodium carbonate are contained by 57.3g of sodium carbonate
Lady_Fox [76]

Answer:

\boxed {\boxed {\sf 0.541 \  mol \ Na_2CO_3}}

Explanation:

We are asked to find how many moles of sodium carbonate are in 57.3 grams of the substance.

Carbonate is CO₃ and has an oxidation number of -2. Sodium is Na and has an oxidation number of +1. There must be 2 moles of sodium so the charge of the sodium balances the charge of the carbonate. The formula is Na₂CO₃.

We will convert grams to moles using the molar mass or the mass of 1 mole of a substance. They are found on the Periodic Table as the atomic masses, but the units are grams per mole instead of atomic mass units. Look up the molar masses of the individual elements.

  • Na:  22.9897693 g/mol
  • C: 12.011 g/mol
  • O: 15.999 g/mol

Remember the formula contains subscripts. There are multiple moles of some elements in 1 mole of the compound. We multiply the element's molar mass by the subscript after it, then add everything together.

  • Na₂ = 22.9897693 * 2= 45.9795386 g/mol
  • O₃ = 15.999 * 3= 47.997 g/mol
  • Na₂CO₃= 45.9795386 + 12.011 + 47.997 =105.9875386 g/mol

We will convert using dimensional analysis. Set up a ratio using the molar mass.

\frac {105.9875386  \ g \ Na_2CO_3}{1 \ mol \ Na_2CO_3}

We are converting 57.3 grams to moles, so we multiply by this value.

57.3 \ g \ Na_2CO_3} *\frac {105.9875386  \ g \ Na_2CO_3}{1 \ mol \ Na_2CO_3}

Flip the ratio so the units of grams of sodium carbonate cancel.

57.3 \ g \ Na_2CO_3} *\frac {1 \ mol \ Na_2CO_3}{105.9875386  \ g \ Na_2CO_3}

57.3 } *\frac {1 \ mol \ Na_2CO_3}{105.9875386 }

\frac {57.3 }{105.9875386 } \ mol \ Na_2CO_3

0.5406295944 \ mol \ Na_2CO_3

The original measurement of moles has 3 significant figures, so our answer must have the same. For the number we found that is the thousandth place. The 6 in the ten-thousandth place to the right tells us to round the 0 up to a 1.

0.541 \  mol \ Na_2CO_3

There are approximately <u>0.541 moles of sodium carbonate</u> in 57.3 grams.

6 0
2 years ago
Stest will not impact your grade.
Diano4ka-milaya [45]
C. Spacecraft are built to be airtight.
5 0
2 years ago
Read 2 more answers
Iron ore exists as Fe2O3. In order to remove the oxygen and generate pure iron, the oxygen must be transferred to another molecu
Svetllana [295]
The answer would be c
4 0
2 years ago
Other questions:
  • Answer the question please
    14·1 answer
  • Smooth tissues that cover surfaces are________
    8·1 answer
  • The closest hominin to a current day human is?
    10·1 answer
  • 2.46 grams of Cu(NO3)2 would contain how many formula units
    15·1 answer
  • The average amount of energy of motion of each particle of a substance is called what?
    12·1 answer
  • Why is copper a good electrcity conducter
    10·2 answers
  • Copper sulfate is made of one copper (Cu) atom, one sulfur (S) atom, and four oxygen (O) atoms. Write the chemical formula corre
    12·1 answer
  • How is science based on observation used as evidence? How can this evidence be used?
    10·2 answers
  • Explain why uranium must be enriched to be used in a nuclear power plant.
    11·1 answer
  • HELP!! PLEASE!<br><br> Describe North America’s rotation. (in terms of continental drift)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!