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
earnstyle [38]
3 years ago
9

Which organism has a nerve net? A fish B hydra C flatworm D sponge

Chemistry
2 answers:
alexdok [17]3 years ago
8 0

Answer:Hydra

Explanation:

Kaylis [27]3 years ago
5 0
B. Hydra, because Hydra<span>are an ideal class of </span>Cnidaria<span> to research and on which to run tests.</span>
You might be interested in
Bright headlights show objects how far away
bija089 [108]

well according to what i know....headlights only let you see about 350 feet ahead...hope it helps :)

7 0
3 years ago
Read 2 more answers
Glycerol (molar mass 92.09 g/mol) has been suggested for use as an alternative fuel. The enthalpy of combustion, Δ
victus00 [196]

The mass of glycerol to that would need to be combusted to heat 500.0g of water from 20.0°C to 100.0°C is; 9.32 grams.

We must establish the fact that energy is neither created nor destroyed.

Therefore, the amount of heat absorbed by water is equal to the amount of heat released by the combustion of glycerol.

Total heat absorbed by water, H(water) is;

Q(water) = m C (T2 - T1)

Q(water) = 500 × 4.184 × (100-20)

Q(water) = 167.36 kJ

Consequently, the quantity of heat evolved by the combustion of glycerol is;

Q(glycerol) = 167,360 J = n × ΔH°comb

where, n = no. of moles of glycerol.

167.36 kJ= n × 1654 kJ/mole

n = 167.36/1654

n = 0.1012 moles of glycerol.

Therefore, mass of glycerol combusted, m is;

m = n × Molar mass

m = 0.1012 × 92.09

m = 9.32 g.

Read more:

brainly.com/question/20709115

6 0
3 years ago
Convert 5.50 mol of MgO to g.
Fiesta28 [93]

Answer:

5.50 moles of magnesium oxide is 221.6742 grams

Explanation:

to do this you multiply the number of moles by the molar mass

7 0
2 years ago
Which material is likely to slow the<br> flow of electric charges the most? Explain.
AlladinOne [14]

Explanation:

Atoms of metals do not hold their electrons to themselves. Instead they allow them to float around them delocalised. This is important because it is this characteristic that allows metals to be good conductors of electricity since electrons are free to move around to carry a charge.

please mark it brainliest

5 0
3 years ago
EIGHTY POINTS- WILL GET BRAINLIEST NEED ANSWER ASAP
il63 [147K]

ans A. 13 to 3

solution:

Total puppies for sale=6

Total puppies left = 2

hence total puppies sold= 6 - 2 = 4

cost of a puppy= $ 104

so cost of 2 puppies = 104 x 4

=416$

Now for kittens:

Total kittens for sale = 12

Total kittens left = 8

hence total kittens sold=12 - 8 =4

cost of a kitten = $24

so cost of 4 kittens= 24x 4=96$

Now ratio of sales of puppies to kittens = 208$/96$

= 13/3 or 13:3 or 13 to 3

I hope this explanation will help you to understand this problem

5 0
3 years ago
Other questions:
  • (CH3)2N2H2 + N2O4 → N2 + H2O + CO2 + heat [balance?]​
    14·1 answer
  • 3) Summarize the ways the desert can help preserve a body.
    13·1 answer
  • What knowledge is radiometric dating based upon? A. the rate of decay for certain isotopes B. the name of the rocks C. the weigh
    15·2 answers
  • how many moles of an ideal gas would occupy a 25.0 liter container when the temperature is 295 K and the pressure is 0.850 atm?
    14·1 answer
  • Would you expect lactic acid, ch3ch(oh)co2h ( in sour milk) or myristic acid, ch3(ch2)12co2h (used to make cosmetics) to be more
    9·1 answer
  • Which of these is an example of a physical change?
    15·2 answers
  • Empirical formula for H2Cl2O6
    13·1 answer
  • Which phrase best describes earths atmosphere
    7·1 answer
  • Jack is melting butter in a pan. He observes a clear liquid with many solid particles floating in it. Based on Jack's observatio
    7·1 answer
  • What does the law of multiple proportion account for?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!