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
Ket [755]
3 years ago
5

A student wants to determine whether or not an unknown substance is a metal by testing its physical properties. Which of the fol

lowing properties would suggest that the substance is probably a metal?
Chemistry
2 answers:
blondinia [14]3 years ago
8 0
It conducts electricity
lora16 [44]3 years ago
6 0
C. ....................................
You might be interested in
How do liquid water, ice, and water vapor differ from each other?
Gnesinka [82]
2, because they are all a form of water.. but just in different states of matter depending on their form
5 0
3 years ago
Read 2 more answers
The mole fraction of CO2 in a certain solution with H2O as the solvent is 3.6 × 10−4. What is the approximate molality of CO2 in
nataly862011 [7]

Answer: C) 0.020 m

Explanation:

Molality of a solution is defined as the number of moles of solute dissolved per kg of the solvent.

Molality=\frac{n\times 1000}{W_s}

where,

n = moles of solute  

W_s = weight of solvent in g  

Mole fraction of CO_2 is = 3.6\times 10^{-4} i.e.3.6\times 10^{-4}  moles of CO_2 is present in 1 mole of solution.

Moles of solute (CO_2) = 3.6\times 10^{-4}

moles of solvent (water) = 1 - 3.6\times 10^{-4} = 0.99

weight of solvent =moles\times {\text {Molar mass}}=0.99\times 18=17.82g

Molality =\frac{3.6\times 10^{-4}\times 1000}{17.82g}=0.020

Thus  approximate molality of CO_2 in this solution is 0.020 m

5 0
3 years ago
2.17 in to 10^23 molecules of Br 2 to moles
KiRa [710]

I don't get what you are saying... Can you reword it?

3 0
3 years ago
Determine the mass of SO₂ that contains 6.075 × 10^26 S atoms.​
Misha Larkins [42]

Avogadro's law states that in a mole of any substance, there are 6.022 \times 10^{23} atoms. This means that in the given sample, there are

\frac{6.075 \times 10^{26}}{6.022 \times 10^{23}}=1008.8010627 \text{ mol}

  • The atomic mass of sulfur is 32.06 amu.
  • The atomic mass of oxygen is 15.9994 amu.

So, the atomic mass of sulfur dioxide is

32.06+2(15.9994=64.0588 \text{ g/mol}

Therefore, the mass is:

(64.0588)(1008.8010627)=\boxed{64620 \text{ g (to 4 sf)}}

7 0
2 years ago
Which element is the least reactive? Neon, Chlorine, Gallium or Tin
Katen [24]
Noble gases are supposed to be the least reactive elements so I’m assuming Neon would be the most least reactive out of all of them.
7 0
2 years ago
Read 2 more answers
Other questions:
  • The nonvolatile, nonelectrolyte urea, CH4N2O (60.1 g/mol), is soluble in water, H2O. How many grams of urea are needed to genera
    14·1 answer
  • Briefly explain why an unbalanced chemical equation cannot fully describe a reaction?
    7·1 answer
  • Which of the following has the correct change in enthalpy and reaction description for the following reaction? NH3(g) + HCl(g) N
    9·2 answers
  • In the formation of sodium chloride, nacl, electrons are transferred from the sodium atom to the chlorine atom. this is an examp
    7·1 answer
  • Solids, liquids, and gases can be distinguished by their
    12·1 answer
  • A particular reactant decomposes with a half-life of 121 s when its initial concentration is 0.357 M. The same reactant decompos
    15·1 answer
  • Please help me with this question
    9·1 answer
  • I dont know how to do percent error.
    7·1 answer
  • What is the correct formula of a compound that has ten oxygen atoms and four phosporus atoms?
    6·1 answer
  • Two objects have the same total thermal energy. They are different sizes. are they at the same temperature ? Explan.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!