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IgorLugansk [536]
3 years ago
6

Very few fossil of jelly fish or their close relatives have been found. This makes it hard to trace the evolutionary history of

jellyfish using fossil record. what explain this
Chemistry
2 answers:
dsp733 years ago
7 0
This statement explains that jelly fish in an endemic species 
ehidna [41]3 years ago
6 0
Jellyfish dont have bones. fossils formed from bones or rock formation.
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There are a lot of empty _____ between the particles
Furkat [3]
There are a lot of empty space between the particles
5 0
3 years ago
Find the molar mass of this
kirill115 [55]

Explanation:

Given problem:

Find the molar mass of:

  SO₃ and C₁₀H₈

Solution:

The molar mass of a compound is the mass in grams of one mole of the substance.

To solve this, we are going to add the individual atomic masses of the elements in the compound;

  Atomic mass;

       S = 32g/mol; O = 16g/mol; C = 12g/mol and H = 1g/mol

For  SO₃;

     = 32 + 3(16)

     = 32 + 48

     = 80g/mol

For C₁₀H₈

      = 10(12) + 8(1)

      = 120 + 8

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7 0
3 years ago
Any substance which yields a hydrogen ion when placed in a water solution is call an——-
lidiya [134]

it is A Acid

Explanation : Any substance that yields a hydrogen ion when placed in a water solution is called an acid. According to Arrhenius theory of Acids and Bases, Acids are those substances which on dissociation in solution generates ions. Whereas a Base is a substance that dissociates in the solution to produce ions.

6 0
3 years ago
How many total atoms are there in one molecule of C145H293O168?
nasty-shy [4]

Answer:

606 atoms

Explanation:

Add the numbers    145 + 293 + 168

4 0
2 years ago
12. What is the mass number of an atom that has 4 protons, 4 electrons, and 5 neutrons?
NeTakaya

Answer:

9

Explanation:

mass number = protons + neutrons

= 4 + 5 = 9

7 0
3 years ago
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