<u>Answer:</u> The weight of water bed in pounds is 1850.16 lb
<u>Explanation:</u>
To calculate the volume of cuboid, we use the equation:

where,
V = volume of cuboid
l = length of cuboid = 210 cm
b = breadth of cuboid = 160 cm
h = height of cuboid = 25 cm
Putting values in above equation, we get:
(Conversion factor:
)
To calculate the mass of waterbed, we use the equation:

Density of waterbed = 
Volume of waterbed =
Putting values in above equation, we get:

Hence, the weight of water bed in pounds is 1850.16 lb
I don't know your mc choices so I am going to go with "the number of valence electrons"
Oxidation number: the amount of electrons an atom gains, loses or shares when it forms chemical bonds. As for the valence electrons, those are the electrons that are responsible for bonds/ reactions.
Answer:
9
Explanation:
i think i dont know
maybe someone tell me if I'm wrong
Tile conducts the cold toward your feet.
This is simple because the tile is naturally colder then carpet because of it's material.
Answer:

Explanation:
Hello,
In this case, given the reaction:

We notice a 3:1 molar ratio between sodium hydroxide and phosphoric acid, therefore, at the equivalence point we have:

That in terms of molarity is:

Se we solve for the volume of acid:

Best regards.