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3 years ago

Octopus and squids breathe through

1 answer:

4 0

Octopus and squids breathe like fishes they breathe from gills 

so even octopus and squids breathe through gills too.

maybe this answer would help u

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Do you think science will end the world or save the world or do neither?

pantera1 [17]

Answer:

This is all up to you

Explanation: This question is up to you because you may think both or just one.

7 0

3 years ago

While analyzing a fingerprint, the forensic expert identified a ridge that had a short arm originating from it. Which ridge char

Diano4ka-milaya [45]

The answer is spur, hope this helped (:

7 0

3 years ago

What state of matter change is rain?

Charra [1.4K]

Answer:

The state of matter of rain is liquid. Clouds are 2 states of matter, liquid and gas

Explanation:

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3 years ago

The molarity of an aqueous sodium phosphate solution is 0.650 M. What is the molality of sodium ions present in this solution? T

netineya [11]

Answer:

molality of sodium ions is 1.473 m

Explanation:

Molarity is moles of solute per litre of solution

Molality is moles of solute per kg of solvent.

The volume of solution = 1 L

The mass of solution = volume X density = 1000mL X 1.43 = 1430 grams

The mass of solute = moles X molar mass of sodium phosphate = 0.65X164

mass of solute = 106.6 grams

the mass of solvent = 1430 - 106.6 = 1323.4 grams = 1.3234 Kg

the molality = $\frac{moles of solute}{mass of solvent in kg}=\frac{0.65}{1.323}= 0.491m$

Thus molality of sodium phosphate is 0.491 m

Each sodium phosphate of molecule will give three sodium ions.

Thus molality of sodium ions = 3 X 0.491 = 1.473 m

7 0

3 years ago

High-speed winds transfer more energy to the ocean’s surface, creating bigger waves.

Illusion [34]

Answer:

I think that would be true. The faster the wind, the longer it blows, or the farther it can blow uninterrupted, the bigger the waves. Therefore, a wave's size depends on wind speed, wind duration, and the area over which the wind is blowing

8 0

3 years ago

Read 2 more answers