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
VARVARA [1.3K]
2 years ago
15

Freshwater leeches attach to fish and suck blood from the fish for extended periods of time. This results in sores on the fish t

hat often become infected.
This relationship is best described as .
Chemistry
2 answers:
USPshnik [31]2 years ago
4 0

Answer:

Parasitism

Explanation:

zhuklara [117]2 years ago
4 0

Answer:

Parasitism

.

Explanation:

You might be interested in
35g of HF was prepared by reacting 112g of CaF2 with an excess of H2SO4 calculate the percentage yield
Tom [10]

Answer: 61%


The reaction equation should be

CaF2 + H2SO4 → 2HF + CaSO4

For every 1 molecule CaF2 used, there will be 2 molecules of HF formed. The molecular mass of CaF2 is 78/mol while the molecular mass of HF is 20g/mol. If the yield is 100%, the amount of HF formed by 112g CaF2 would be: 112g/(78g/mol) * 2 * (20g/mol)=57.43g

The percentage yield of the reaction would be: 35g/57.43g= 60.94%

7 0
3 years ago
The overall order of an elementary step directly corresponds to its molecularity.
inna [77]

Answer:

true

Explanation:

7 0
3 years ago
The answer is what I need to know thank you
diamong [38]

Answer:250 and your matthew sister

8 0
2 years ago
What is mass in g of 22 moles of copper?
galina1969 [7]
The molar mass of copper is 63.55 g/mol
6 0
3 years ago
The volume of a gas at 17.5 psi decreases from 1.8L to 750mL. What is the new pressure of the gas in arm?
Maurinko [17]

Answer:

P₂ = 2.88 atm

Explanation:

Given data:

Initial volume of gas = 1.8 L

Final volume = 750 mL

Initial pressure = 17.5 Psi

Final pressure = ?

Solution:

We will convert the units first:

Initial pressure = 17.5  /14.696 = 1.2 atm

Final volume = 750 mL ×1L/1000L = 0.75 L

The given problem will be solved through the Boly's law,

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume  

Now we will put the values in formula,

P₁V₁ = P₂V₂

1.2 atm × 1.8 L =  P₂  ×0.75 L

P₂ = 2.16 atm. L/ 0.75 L

P₂ = 2.88 atm

4 0
3 years ago
Other questions:
  • On a mission to a newly discovered planet, an astronaut finds chlorine abundances of 13.85 % for 35cl and 86.15 % for 37cl. What
    5·1 answer
  • Combustion analysis of toluene, a common organic solvent, gives 5.86 mg of co2 and 1.37 mg of h2o. if the compound contains only
    7·2 answers
  • Which of he following is a secondary alkanol?
    11·1 answer
  • Hydrocarbons having the same formula but variations in structure are called isomers.
    9·1 answer
  • What is the wavelength of a wave having a frequency of 3.76 times 10 ^14 s^-1
    8·1 answer
  • Part b solid lithium metal and diatomic nitrogen gas react spontaneously to form a solid product. give the balanced chemical equ
    15·1 answer
  • Explain how the periodic table can help in writing electron configurations
    5·2 answers
  • HELP PLEASE! *I will make you brainlist IF YOU CAN ANSWER ALL OF THE QUESTIONS!* (Read the directions)
    5·1 answer
  • If there are 3 moles of gas A, 4 moles of gas b and 5 moles of gas c I'm a mixture of gases and the pressure A is found to be 2.
    8·1 answer
  • Brainliest to right answer
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!