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
astraxan [27]
3 years ago
8

Which one of the following is a vestigial structure? 1. Heart 2. Appendix 3. Right leg 4. liver

Chemistry
2 answers:
zmey [24]3 years ago
6 0
The heart is what I would say
marysya [2.9K]3 years ago
4 0
Im going to say that it is 1.) The Heart

You might be interested in
Why is a bowling ball harder to lift than a basket ball? Is it bc a bowling ball is made of metal?
vagabundo [1.1K]
It is more slippery, and it is heavier
5 0
3 years ago
Given that you started with 28.5 g of K3PO4, how many grams of KNO3 can be<br> produced?
Irina18 [472]

Mass of KNO₃ : = 40.643 g

<h3>Further explanation</h3>

Given

28.5 g of K₃PO₄

Required

Mass of KNO₃

Solution

Reaction(Balanced equation) :

2K₃PO₄ + 3 Ca(NO₃)₂ = Ca₃(PO₄)₂ + 6 KNO₃

mol K₃PO₄(MW=212,27 g/mol) :

= mass : MW

= 28.5 : 212,27 g/mol

= 0.134

Mol ratio of K₃PO₄ : KNO₃ = 2 : 6, so mol KNO₃ :

= 6/2 x mol K₃PO₄

= 6/2 x 0.134

= 0.402

Mass of KNO₃ :

= mol x MW KNO₃

= 0.402 x 101,1032 g/mol

= 40.643 g

8 0
2 years ago
• Describe how ultrasound and infrasound are used in specific industrial applications and provide detailed examples.
xeze [42]

Ultrasound is sound or vibrations, having an ultrasonic frequency, particularly as used in medical imaging. Ultrasound is more commonly used in medical terminology than in industry. Infrasound is sound waves with frequencies below the lower limit of human audibility.

8 0
3 years ago
Human skin color varies widely around the world, and children do not always exhibit the exact same coloring as their parents. Ba
makvit [3.9K]
D an example of polygenic inheritance

ps this is more biology than chemistry
6 0
3 years ago
A student dissolves 73 g of sodium nitrate, NaNO3, in 100 mL of water and observes a clear, colorless
ohaa [14]
I 90% sure that it would be supersaturated
4 0
2 years ago
Other questions:
  • How many grams of N are in 89.0 g of NH4NO3
    6·1 answer
  • If the pressure of a sample of gas is doubled at constant temperature, what happens to the volume of the gas?
    10·2 answers
  • Which of the following is an anion?
    5·1 answer
  • What volume of 0.08892 M HNO3 is required to react completetly with 0.2352 g of potassium hydrogen phosphate?
    11·2 answers
  • Calculate the heat of decomposition for this process at constant pressure and 25°C: CaCO3(s) → CaO(s) + CO2(g) The standard enth
    5·1 answer
  • When scientists say that a theory can never be proven, what are they actually saying?
    9·1 answer
  • which types of intermolecular forces are most likely to dominate between large molecules containing long chains of carbon atoms
    5·1 answer
  • Why does H2O have a lower melting point than MgO
    6·1 answer
  • Can someone please tell me the answer
    7·1 answer
  • Solve pls brainliest
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!