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
saul85 [17]
2 years ago
15

Can someone plz help me? :(

Chemistry
1 answer:
Tju [1.3M]2 years ago
8 0

Answer:

the Respiratory System and  Circulatory system

Explanation:

You might be interested in
How many times higher is the concentration of H+ in the Hubbard Brook sample than in unpolluted rainwater?
Anna [14]

Answer:

1. 7 (a neutral solution)

Answer: 10-7= 0.0000001 moles per liter

2. 5.6 (unpolluted rainwater)

Answer: 10-5.6 = 0.0000025 moles per liter

3. 3.7 (first acid rain sample in North America)

Answer: 10-3.7 = 0.00020 moles per liter

The concentration of H+ in the Hubbard Brook sample is 0.00020/0.0000025, which is 80 times higher than the H+ concentration in unpolluted rainwater.

Explanation:

8 0
2 years ago
Did Chelate compounds increase the rate of reaction?
Viefleur [7K]

Answer:

Chelate, any of a class of coordination or complex compounds consisting of a central metal atom attached to a large molecule, called a ligand, in a cyclic or ring structure. An example of a chelate ring occurs in the ethylenediamine-cadmium complex:

The ethylenediamine ligand has two points of attachment to the cadmium ion, thus forming a ring; it is known as a didentate ligand. (Three ethylenediamine ligands can attach to the Cd2+ ion, each one forming a ring as depicted above.) Ligands that can attach to the same metal ion at two or more points are known as polydentate ligands. All polydentate ligands are chelating agents.

Chelates are more stable than nonchelated compounds of comparable composition, and the more extensive the chelation—that is, the larger the number of ring closures to a metal atom—the more stable the compound. This phenomenon is called the chelate effect; it is generally attributed to an increase in the thermodynamic quantity called entropy that accompanies chelation. The stability of a chelate is also related to the number of atoms in the chelate ring. In general, chelates containing five- or six-membered rings are more stable than chelates with four-, seven-, or eight-membered rings.

Explanation:

7 0
2 years ago
In sodium chloride the ions are lined up in a __ patterns
adelina 88 [10]
Random or ionic bond pattern
6 0
3 years ago
Helllppppppppp....<br>don't guess !!!​
noname [10]

Answer:

it answer D because waste is flowing thru the air

7 0
2 years ago
Read 2 more answers
The parallel around the middle of earth
Vika [28.1K]
The equator is the parallel
7 0
3 years ago
Other questions:
  • Is C8H18 an electrolyte or non-electrolyte
    14·1 answer
  • All of the following are examples of synthesizing extept
    15·2 answers
  • If one mole (1.00 mol) of copper (Cu) has 6.02x10^23 atoms of copper, how many molecules are in 1.00 mol of nitrogen gas (N2)
    11·1 answer
  • A molecule of aluminum fluoride has one aluminum atom. How many fluorine atoms are present?
    9·2 answers
  • 1.
    8·1 answer
  • What is the percent by mass of chlorine CI in NaCI to 3 significat digits please help
    11·1 answer
  • A chlorine (CI) atom has 7 valence electrons. Which of the following would be the most likely way for a chlorine atom to become
    9·1 answer
  • 3. Give three examples of a pure substances
    12·2 answers
  • What is the specific heat capacity of silver metal if 110.00 g of the metal
    5·1 answer
  • Question 5 of 5
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!