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rodikova [14]
3 years ago
10

ASAP MULTIPLE CHOICE

Chemistry
1 answer:
OleMash [197]3 years ago
7 0
The mass of electrons , i just did the same test and got it right
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1) How many moles are in 4.0x10^24 atoms?
-Dominant- [34]

Answer:

<h2>6.64 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{4 \times  {10}^{24} }{6.02 \times  {10}^{23} }   \\  = 6.644518...

We have the final answer as

<h3>6.64 moles</h3>

Hope this helps you

3 0
3 years ago
Help me please i need the answer now<br>(nonsense report)​
rusak2 [61]

Answer:

Quantitative

  • Words, Measurement, Numbers, Charts, Instruments, Quantity, Data

Qualitative

  • Touch, Quality, Hear, Senses, Description, Exact, Narrative, Analyze

Explanation :

Quantitative Data

  • Can't measure
  • Has numerical value
  • Can campare
  • Do not depend on human eye

Qualitative Data

  • Can't measure
  • Don't have numerical value
  • Can't campare
  • Depend on human eye
3 0
3 years ago
Which is something that a PURE SUBSTANCE and a SOLUTION have in common?
zhuklara [117]

D) They both look uniform (the same) throughout.

<h3>Further explanation</h3>

Pure substance can be any element or compound and is formed from one type of atom/molecule only

Meanwhile, the solution is included in a mixture consisting of 2 or more pure substance

Pure substance can be formed through a chemical process while the mixture is through a physical process

Mixture can be separated by physical processes into components of pure substance while pure substance cannot

The mixture itself consists of a homogeneous and heterogeneous solution

The mixture can be divided into a homogeneous mixture if the composition/ratio of each substance in the mixture is the same and a heterogeneous mixture if the ratio of the composition of the substances is not the same (can be varied) in each place.

Mixtures can also be divided into solutions, suspensions, and colloids based mainly on the size of the particles

Homogeneous mixture = Solution

Heterogeneous mixture = suspension, and

The mixture is located between suspension and solution = Colloid

8 0
3 years ago
Mention at least two organic compounds synthesized from inorganic substanc​
Salsk061 [2.6K]

Answer:

p-Nitro acetanilide. 2-Naphthol aniline dye.

8 0
3 years ago
Read 2 more answers
I know the photo trash but i need answers for the top middle and last question please :)
Firlakuza [10]

Answer:

Middle: Self heating containers are really expensive but are useful because they are easy to use, portable, and can be recycled, unlike a camp stove which is not as easily moved.

Explanation:

i neeed a better image for the first an last boo<3

6 0
2 years ago
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