As the temperature of seawater increases from 15o C to 20o C, sound velocity through the seawater

Chemistry

2 answers:

Thepotemich [5.8K]2 years ago

8 0

Answer: D- increases

Explanation:

polet [3.4K]2 years ago

7 0

Answer is: d. increases.
The velocity of sound in seawater changes with water pressure, depth, temperature and salinity.
Velocity can be calculeted using Del Grosso's equation, the UNESCO equation (International Standard algorithm) or Mackenzie equation.
To measure velocity navy use Expendable Bathy Thermograph.

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What mass of hydrogen sulfide, H2S, will completely react with 2.00 moles of silver nitrate, AgNO3?

hodyreva [135]

Answer:

34g

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

H2S + 2AgNO3 —> 2HNO3 + Ag2S

Next, we shall determine the number of mole of H2S required to react with 2 moles of AgNO3.

This is illustrated below:

From the balanced equation above,

We can see that 1 mole of H2S is required to react completely with 2 moles of AgNO3.

Finally, we shall convert 1 mole of H2S to grams. This is shown below:

Number of mole H2S = 1 mole

Molar mass of H2S = (2x1) + 32 = 34g/mol

Mass = number of mole x molar Mass

Mass of H2S = 1 x 34

Mass of H2S = 34g

Therefore, 34g of H2S is needed to react with 2 moles of AgNO3.

6 0

2 years ago

12.

Veronika [31]

Answer:

Nonbonding pairs of electrons.

Explanation:

Both oxygen atoms in the diatomic molecule have two nonbonding pairs. This results in the oxygen molecule having a planar geometric shape. This is because nonbonding pairs repel each other are significant in determining the shape of a molecule.