1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anestetic [448]
3 years ago
14

what do the presence of fish and a wide diversity of invertebrates in a river indicate regarding water quality?

Chemistry
1 answer:
astra-53 [7]3 years ago
7 0
It indicates that the river water is very good quality with nutrients and minerals to support an ecosystem.
You might be interested in
Which of the following statements are correct about the chemical reaction?
kvv77 [185]
The correct answer for the question that is being presented above is this one: "They are both balanced chemical equations." The <span>statement that is correct about the chemical reaction is that both chemical reaction are balanced chemical equations.</span>
8 0
3 years ago
(34.969amu)(0.7577) =<br> (36.966amu)(0.2423) =<br> +
Monica [59]

Answer:

26.4 960 for the first one

8.9569 for the second one

7 0
3 years ago
I need help!! Following measurements
Anna71 [15]
I am so sorry I do not know but I need to answer a question in order to ask one I hope u pass:))
5 0
3 years ago
A single atom of an element has 21 nutrons 20 electtons and 20 protons which element is it
guajiro [1.7K]

your element would be calcium


7 0
4 years ago
a- If an Lithium (atomic number 3) atom has a -2 charge, how many electrons does it have? b- Why do you do it this way? c- Is th
Darina [25.2K]

Answer:

5

Explanation:

A lithium atom with an atomic number of 3 and a charge of -2 will have a total number of electrons.

The atomic number is the number of protons in an atom. For a neutral atom that has not gained or lost electrons, the atomic number is the same as the number of electrons.

   neutral atom: atomic number of electrons

For neutral atom of lithium, we will have 3 electrons

Now, lithium with a charge of -2 has gained two more electrons to the original 3 this now makes it 5.

ii.

It is an anion because it is negatively charged.

Negatively charged particles are called anion.

6 0
3 years ago
Other questions:
  • In the manufacture of steel, pure oxygen is blown through molten iron to remove some of the carbon impurity. if the combustion o
    13·2 answers
  • What is the electron configuration for bromine
    11·1 answer
  • Mass is measured using _____.
    13·2 answers
  • The heat of fusion of water is 80 cal/<br> g. How much energy is needed to melt 0.05 kg of ice?
    5·1 answer
  • Calculate the ph of a 0.30 m cocl3 solution. the ka value for co(h2o)63 is 1.0 ✕ 10-5.
    5·1 answer
  • Urea is a product of digestion of proteins and other foods that contain nitrogen. It can react with water and acid to form ammon
    14·2 answers
  • What is the most reactive metal on the periodic table?
    7·1 answer
  • Enter the electron configuration for the ion most likely formed by phosphorus. Express your answer in the order of orbital filli
    6·1 answer
  • Determine whether each described process is endothermic or exothermic.
    6·1 answer
  • What mass of aluminum must react with 100 g of copper (ii) phosphate? (10g)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!