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Nady [450]
2 years ago
7

Examples of a pure substances

Chemistry
2 answers:
KonstantinChe [14]2 years ago
8 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

Explanation:

DiKsa [7]2 years ago
3 0

Answer:

Explanation:

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.

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5. How many moles of NaCl will it take to make 3.0 L of<br> a 0.1 M solution?
Ilia_Sergeevich [38]

Answer:

0.30 mole NaCl needed.

Explanation:

From the definition of solution molarity => Molarity = moles solute / Volume of Solution in Liters => Molarity = moles/Volume(L) => solve for moles =>

moles = Molarity X Volume(L) = (0.1M)(3.0L) = 0.30 mole NaCl needed.

8 0
2 years ago
ANSWER ASAP
ArbitrLikvidat [17]

Answer:

c. 3.00 M HCl

Explanation:

From dilution formula

C1V1 = C2V2

C1=?, V1= 10.0ml, C= 1.5, V2= 20.0ml

Substitute and Simplify

C1×10= 1.5×20

C1= 3.00M

5 0
3 years ago
Periodic Table High School Reference Sheet
Ira Lisetskai [31]
I believe it should be B
8 0
3 years ago
Vanadium has an atomic mass of 50.9415 amu. It has two common isotopes. One isotope has a mass of 50.9440 amu and a relative abu
grandymaker [24]

Answer:

Average atomic mass of the  vanadium = 50.9415 amu

Isotope (I) of vanadium' s abundance = 99.75 %= 0.9975

Atomic mass of Isotope (I) of vanadium ,m= 50.9440 amu

Isotope (II) of vanadium' s abundance =(100%- 99.75 %) = 0.25 % = 0.0025

Atomic mass of Isotope (II) of vanadium ,m' = ?

Average atomic mass of vanadium =

m × abundance of isotope(I) + m' × abundance of isotope (II)

50.9415 amu =50.9440 amu× 0.9975 + m' × 0.0025

m'= 49.944 amu

Explanation:

6 0
3 years ago
Rounded to the nearest whole number, how many neutrons, on average, are in an atom of osmium? 76 114 190 266
Sonja [21]
Osmium has 114 neutrons on average
5 0
3 years ago
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