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
fgiga [73]
3 years ago
14

Select the statement that best describes components of complete and incomplete metamorphosis. (2 points)

Chemistry
2 answers:
yarga [219]3 years ago
6 0

Answer:

Complete metamorphosis and incomplete metamorphosis are two growth types of insects where the body form of insects changes during their lifecycle. ... Complete metamorphosis consists of four stages: egg, larva, pupa, and adult. However, the incomplete metamorphosis consists of three stages: egg, nymph, and adult

Leona [35]3 years ago
6 0

Answer:

The answer is

<h2>A</h2>

Explanation:

You might be interested in
When ethanol is burned, it's converted into carbon dioxide and water. Does the ethanol undergo a physical change or a chemical c
NARA [144]
It's a chemical change because ethanol is converted into other substances.
3 0
3 years ago
What are the number if protons, neutrons, and electrons
marishachu [46]

protons and electrons are both always the atomic number which is 9 in this case.

For neutrons you subtract the atomic number (9) from the weight of the atom (18.998) some teachers will want you to round to the nearest whole (19). We do this because the number of protons is the atomic number so if you subtract the protons from the whole weight of the atom you would have the electrons and neutrons left. Since electrons weigh so little we don't have to subtract them. Weighing neutrons and electrons would be like weighing an elephant (neutrons) and then putting one marshmallow on the scale (electron).  

5 0
3 years ago
a solution of unknown molecular substance is prepared by dissolving 0.50g of the unknown in 8.0g of benzene. the solution freeze
spayn [35]

Answer:

THE MOLAR MASS OF THE UNKNOWN MOLECULAR SUBSTANCE IS 200 G/MOL.

Explanation:

Mass of the unknown substance = 0.50 g

Freezing point of the solution = 3.9 °C

Freezing point of pure benzene = 5.5 °C

Freezing point dissociation constant Kf = 5.12°C/m

First, calculate the temperature difference between the freezing point of pure benzene and the final solution freezing point.

Change in temperature = 5.5 -3.9 = 1.6 °C

Next is to calculate the number of moles or molarity of the compound that dissolved.

Using the formula:

Δt = i Kf m

Assume i = 1

So,

1.6 °C = 1 * 5.12 * x/ 0.005 kg of benzene

x = 1.6 * 0.008 / 5.12

x = 0.0128 / 5.12

x = 0.0025 moles.

Next is to calculate the molar mass using the formula, molarity = mass / molar mass

Molar mass = mass / molarity

Molar mass = 0.50 g /0.0025

Molar mass = 200 g/mol

Hence, the molar mass of the unknown compound is 200 g/mol

6 0
2 years ago
In a short paragraph, describe how I fuel cell works.
nirvana33 [79]

Explanation:

passing hydrogen through the anode of a fuel cell and oxygen through the cathode.

hopes this helps

7 0
2 years ago
What is the source of energy for an earthquake
MA_775_DIABLO [31]
Seismic waves is the energy of and earthquake aka Elastic Energy
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the total amount of heat required to completely melt 347 grams of ice at t's melting point
    15·2 answers
  • Answers section 4.2 structure of the nuclear atom 1. a sulfur-32 atom contains 16 protons, 16 neutrons, and 16 electrons. what i
    10·1 answer
  • A sample of seawater consists of water, sodium ions, chloride ions, and several other dissolved salts. These ions and salts are
    7·1 answer
  • Write the IUPAC name for the compound that reacts with vegetable oil to produce biodiesel
    6·1 answer
  • Which of the following is an example of violating aufbau principle in filling electronic orbitals
    9·1 answer
  • Where and how does respiration take place
    13·2 answers
  • How many milliliters are in 8.12 moles of N2
    9·1 answer
  • Daniel is testing objects for his science experiment. He has a chart listing the mystery objects' densities, but no other inform
    7·2 answers
  • Which of the following is true of a balanced equation?
    14·1 answer
  • 1 (
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!