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madreJ [45]
3 years ago
5

What type of matter is 500 grams of silver combined with gold?

Chemistry
1 answer:
marissa [1.9K]3 years ago
4 0

it is a that is the correct answer

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What is the total number of valence electrons in a carbon atom in the ground state
kolbaska11 [484]
Carbon will have 4 valence electrons.  It will have 2 in the p orbital and 2 in the s orbital.  You can see this when you find the noble gas configuration of carbon which is [He]2s²2p² showing that carbon has 4 valence electrons.
I hope this helps.  Let me know if anything is unclear.
6 0
3 years ago
A solution is made
Anna11 [10]

Answer:

99.3%

Explanation:

The percent by mass of the solute can be expressed as:

  • % mass = \frac{MassSolute}{MassSolute+MassSolvent} * 100%

And for this problem:

  • Mass of Solute = Mass of sodium lithium chloride = 29 g
  • Mass of Solvent = Mass of Water

So to calculate the percent by mass first we need to <u>calculate the mass of water</u>, to do so we use its<em> density</em> (1 g/L):

  • 202 mL is equal to (202/1000) 0.202 L.

Density water = mass water / volume

  • 1 g/L = mass water / 0.202 L
  • Mass water = 0.202 g

Now we have all the data required to <u>calculate the % mass:</u>

  • % mass = \frac{29g}{29g+0.202g} * 100 % = 99.3%
3 0
3 years ago
Read 2 more answers
What is the complex Ions for CuO
vovangra [49]

The ion or molecule that forms the bond with the transition metal is called a ligand, e.g. :Cl-, :CN-, H2O:, :NH3. More than one ligand can bind to a transition metal ion to form a complex ion. The copper ion, Cu2+ (aq), in aqueous solution, forms a blue complex ion, [Cu(OH2)6]2+, with 6 water molecules.

8 0
3 years ago
How many atoms of nitrogen are in Fe2(NO4)2?
djverab [1.8K]

<em>the</em><em> </em><em>number</em><em> of</em><em> </em><em>nitrogen</em><em> </em><em>atoms</em><em> </em><em>in</em><em> </em><em>the </em><em>compound</em><em> </em><em>is</em><em> </em><em>two</em>

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3 years ago
Which of the following is an indication of a chemical reaction?
Salsk061 [2.6K]

Answer:

C

Explanation:

A chemical reaction is usually accompanied by easily observed physical effects, such as the emission of heat and light, the formation of a precipitate, the evolution of gas, or a color change.

8 0
3 years ago
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