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ololo11 [35]
1 year ago
14

Evan and his friends are working on a group project on matter. Michelle says that matter is anything that has mass. Ricky says m

atter must have mass and also be touchable. Evan thinks matter must have mass and also be visible. Leon disagrees and says that matter has both mass and takes up space. Who is correct?
Chemistry
1 answer:
Novay_Z [31]1 year ago
8 0

Answer:

Leon

Explanation: all take up space and will have a mass to it.

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A scientist is wondering why a certain region in the ocean doesn't have maximum phytoplankton growth, despite having plenty of n
Advocard [28]

Answer:

C The water had adequate nitrogen and phosphorus, so it is likely iron limited.

Explanation:

Phytoplankton are single- cell organisms that live in oceans.

They require nitrogen, phosphorus and trace amount of iron to survive.

From the scientist's results after testing the water for nitrogen and phosphorus,there are reasonable amount of these elements.

Therefore insufficient iron in the water is the reason why he could find plenty phytoplankton in the ocean.

8 0
2 years ago
The lewis structure of n2h2 shows __________.
Ghella [55]
The Lewis structure of Diimide (N₂H₂) is shown below.

In this molecule two Nitrogen atoms attached to each other through a double bond are further attached to one one Hydrogen atom. Also, each Nitrogen atom carries one non-binding electron pair (Lone Pair) (Highlighted RED).

Result:
          Option-C (<span>each nitrogen has one nonbinding electron pair) is the correct answer.</span>

5 0
2 years ago
Read 2 more answers
How many hydrogen atoms are in 11C2H6
tresset_1 [31]

Answer:

6

Explanation:

You will see H6 and the H stands for helium and the 6 is how many of that atom is there

5 0
1 year ago
Read 2 more answers
For which of the following species are the dispersion forces strongest?
tigry1 [53]
In order to see which species has the strongest dispersion forces, you need to calculate their molar mass, because the higher the molar mass, the stronger the dispersion forces. 
Since E. C8H18 has the highest molar mass, its dispersion forces are also the strongest ones.
5 0
1 year ago
PLEASE HELP!!!!!!!!!!!!!
lions [1.4K]

Answer:

Pd(O2C2H3)2

Explanation:

<u>Percentage composition of elements in the compound:</u>

Pd= 47.40%

O=28.50%

C=21.40%

H= 2.69%

<u>Molar mass of each element</u>

Pd= 106g/mol

O= 16g/mol

C= 12g/mol

H= 1g/mol

Step 1

Find the moles of each element in 100g sample using the formula

no. of moles(n)=mass/molar mass

<u>For Pd:</u> 47.40g/106g/mol

      n=   0.447 moles

<u>For O:</u> 28.50/16

      n= 1.78 moles

<u>For C:</u> 21.40/12

       n= 1.783 moles

<u>For H:</u> 2.69/1

     n= 2.69moles

Step 2

Now divide the no. of moles separately by the smallest number of moles. Smallest number of moles is <em>0.447</em>

Pd= 0.447/0.447

    = 1

O= 1.78/0.447

  = 3.9=4

C= 1.78/0.447

  = 3.9=4

H= 2.69/0.447

 = 6

Hence empirical formula is PdO4C4H6

The probable molecular formula is Pd(O_{2}C_{2}H_{3})2

8 0
1 year ago
Read 2 more answers
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