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pantera1 [17]
3 years ago
11

USATestPrep Question: This is a substance that cannot be broken down further by chemical means. Example: sodium, tungsten, and i

odine.
Chemistry
2 answers:
Mazyrski [523]3 years ago
7 0

The first answerer is correct. (Mark them Brainliest)

Hope this helps.

nlexa [21]3 years ago
5 0
Elements are substances that cannot be broken further down by chemical (or physical, for that matter) means. Sodium, tungsten, and iodine are all examples of chemical elements.
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Which of the following would be expected to dissolve very readily in water?
White raven [17]

I believe your answer would be NaOH.

Hope this helps.

4 0
4 years ago
What is the maximum number of electrons that an L shell may contain?
kirill [66]

Answer:

Eight

Explanation:

The L shell only holds eight electrons.

5 0
3 years ago
Read 2 more answers
Diamonds are measured in carats, and 1 carat=0.200 g. The density of diamond is 3.51 g/cm^3. What is the volume of a 5.0 - carat
Blizzard [7]

Answer:- Volume of the 5.0 carat diamond is 0.28cm^3 .

Solution:- It is a unit conversion problem. Need to convert carat to grams and then using grams and density the volume could easily be calculated.

We have 5.0 carat diamond and asked to calculate it's volume. Density of diamond is given as 3.51\frac{g}{cm^3} and 1 carat = 0.200 g. Let's do this step by step:

First step is the conversion of carat to grams:

5.0carat(\frac{0.200g}{1carat}) = 1.0 g

In second step, grams are converted to volume using the given density as:

volume=\frac{mass}{density}

volume=1.0g(\frac{1cm^3}{3.51g})

volume=0.28cm^3

So, the volume of the 5.0 carat diamond is 0.28cm^3 .


6 0
3 years ago
Halocarbons contain carbon, hydrogen, and atoms from which set of elements?
Mnenie [13.5K]
Key word is “halo”, as in “halogens”. The halogens are group 7 on the periodic table, which includes Florine, Chlorine, Bromine, and Iodine

Answer is 4.
5 0
4 years ago
Two isotopes of lithium are found in nature Li6 has a mass of 6. 02u and Li7 has a mass of 7.02u . Use the atomic weight of lith
alexandr402 [8]

The isotope that is more abundant, given the data is isotope Li7

<h3>Assumption</h3>
  • Let Li6 be isotope A
  • Let Li7 be isotope B

<h3>How to determine whiche isotope is more abundant</h3>
  • Molar mass of isotope A (Li6) = 6.02 u
  • Molar mass of isotope B (Li7) = 7.02 u
  • Atomic mass of lithium = 6.94 u
  • Abundance of A = A%
  • Abundance of B = (100 - A)%

Atomic mass = [(mass of A × A%) / 100] + [(mass of B × B%) / 100]

6.94 = [(6.02 × A%) / 100] + [(7.02 × (100 - A)) / 100]

6.94 = [6.02A% / 100] + [702 - 7.02A% / 100]

6.94 = [6.02A% + 702 - 7.02A%] / 100

Cross multiply

6.02A% + 702 - 7.02A% = 6.94 × 100

6.02A% + 702 - 7.02A% = 694

Collect like terms

6.02A% - 7.02A% = 694 - 702

-A% = -8

A% = 8%

Thus,

Abundance of B = (100 - A)%

Abundance of B = (100 - 8)%

Abundance of B = 92%

SUMMARY

  • Abundance of A (Li6) = 8%
  • Abundance of B (Li7) = 92%

From the above, isotope Li7 is more abundant.

Learn more about isotope:

brainly.com/question/24311846

#SPJ1

4 0
2 years ago
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