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
algol13
3 years ago
5

Tracy observes an organism that lives in a lake by her house. The organism has an internal skeleton, scales, fins, and gills. Th

e organism that Tracy observes is most likely a(n) _______. A. amphibian B. fish C. mammal D. reptile
Chemistry
2 answers:
andrey2020 [161]3 years ago
8 0
I'd say B. Its most likely a fish.
a_sh-v [17]3 years ago
5 0
The answer would be B. fish, because a fish is the only selection that has fins.
You might be interested in
What is kept the same in a controlled experiment
Serhud [2]

Answer:

Variables and independent variables

4 0
2 years ago
How many moles are there in a 1.00 kg bottle of water?
ipn [44]
55.49 moles are in one kilogram of water...
7 0
3 years ago
Does solubility have any unit? Answer properly​
AVprozaik [17]

Answer:

Water solubility is a measure of the amount of chemical substance that can dissolve in water at a specific temperature. The unit of solubility is generally in mg/L (milligrams per liter) or ppm (parts per million). You can often find it in the section 9 of a safety data sheet (SDS).

Explanation:

7 0
3 years ago
Read 2 more answers
ethyl chloride, c2h5cl, is used as a local anesthetic. it works by cooling tissue as it vaporizes; its heat of vaporization is 2
Inessa [10]

The amount of heat that could be removed by 20.0 g of ethyl chloride is 8.184 kJ.

<h3>How do we calculate required heat?</h3>

Required amount of heat which can be removed for the vaporization will be calculated as:

Q = (n)(ΔHv), where

  • n = moles of ethyl chloride
  • ΔHv = heat of vaporization = 26.4 kj/mol

Moles will be calculated as:

n = W/M, where

  • W = given mass of ethyl chloride = 20g
  • M = molar mass of ethyl chloride = 64.51 g/mol

n = 20 / 64.51 = 0.31 mol

On putting all these values in the above equation, we get

Q = (0.31)(26.4) = 8.184 kJ

Hence involved amount of heat is 8.184 kJ.

To know more about heat of vaporization, visit the below link:

brainly.com/question/13106213

#SPJ4

6 0
2 years ago
Which properties are examples of chemical properties? Check all that apply.
Scorpion4ik [409]

Answer:

1.Reactivity

2.combustibility

3.Shape

Hope this helps,

If you think I am right please give brainliest

Happy Holidays!

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which two subatomic particles make up the atomic mass
    14·1 answer
  • The cellular unit of the nervous system is the neuron. what is the major function of this cell type
    5·1 answer
  • Determine the freezing point of a solution that contains 78.8 g of naphthalene (C10H8, molar mass = 128.16 g/mol) dissolved in 7
    9·1 answer
  • Use the References to access important values if needed for this question. Radioactive decay can be described by the following e
    15·1 answer
  • What is an example of a base? carbonic acid sodium carbonate sodium hydroxide hydrochloric acid
    7·1 answer
  • What is the molarity of 0.945 L of a solution that contains 0.227 moles of Fe(NO3)3?
    11·1 answer
  • If you inactivate an enzyme that catalyses an intracellular chemical reaction, what would be the end result?
    8·1 answer
  • How many atoms are there in molecule of glucose (CH12O6)
    7·2 answers
  • You add a neutron to the nucleus of the atom. How many protons, neutrons, and electrons do you have now
    15·1 answer
  • Increasing the volume of an acid solution _______the p H of the solution ______ the pKa of the acid
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!