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adell [148]
3 years ago
10

Is the following sentence true or false. very few minerals are compound

Chemistry
1 answer:
Helga [31]3 years ago
3 0


<u>false very few minerals are a compound</u>

<em><u /></em>

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Determine the total net force and the direction of movement for the situation.
k0ka [10]

Answer:

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Explanation:

6 0
2 years ago
What is the difference between Dalton’s and modern atomic theory
stira [4]

Answer:

Dalton says atoms of a given element are identical in mass and the modern one says atoms of a given element are identical in average mass. ... Modern theory says they atoms can be subdivided, created or destroyed by ordinay means.

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4 0
2 years ago
In the reaction h2so4 + na2co3 → na2so4 + co2 + h2o 14.5 g of water is collected. what is the molarity of sulfuric acid if 1.78
Yuliya22 [10]
H2SO4 + Na2CO3  → Na2SO4 + CO2 + H2O

The molarity  of  sulfuric acid  if  1.78  L  were used  in the   above reaction is
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      Calculation
find the  moles of water  produced  = mass/molar  mass

=   14.5 g /18 g/mol  = 0.806  moles

by use of of mole ratio  between  H2So4  to H2O   which is 1:1  the    moles    of   H2SO4   is also =  0.806   moles


Molarity  of H2SO4 is therefore =    moles/volume  in   liters

=  0.806   mol/  1.78 L  =  0.453 M (answer 2)
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2 years ago
HELP JESUS CHRIST PLEASE ASAP
Kryger [21]

Answer:

What is a Metal ? Metals. Metals are opaque, lustrous elements that are good conductors of heat and electricity. Most metals are malleable and ductile and are, in general, denser than the other elemental substances.

Explanation:

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6 0
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How can the existence of spectra help to prove that energy levels in atoms exist?
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The existence of spectra can help the existence of atoms by expanding and multiplying in the law of London Dispersion
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