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nadezda [96]
3 years ago
14

3. For a boat to float on water, it must have a density lower than the density of water. Compare the densities of your unknown l

iquid and solid. If a boat was made of the unknown solid, would it float on the unknown liquid? Explain your answer.
Chemistry
2 answers:
aev [14]3 years ago
5 0

Answer:it depense.

Explanation: whether a solid to floats or sinks is determined by its density. If the solid is less dense than the liquid, it will float but if denser, it will sink. Whether the solid is known or not, as long as its density is greater than that of the liquid, it will definitely sink. But if it is lesser, it will definitely floats. Remember, density is simply mass over the volume m/v.

Fittoniya [83]3 years ago
4 0

Answer: No

Explanation: if a boat was made of the unknown solid it would not float because it’s density was much higher than the density of water.

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Katarina [22]

Answer: Positive

Explanation: Just a guess

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Which statements accurately describe binary star systems? Check all that apply. have more than two stars have stars that are alw
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Answer:

have stars that might appear to wobble

often have one star that is brighter than the other

Explanation:

A binary star system is a star system made up of mostly two stars that moves round their common fixed center.

The two orbiting stars are gravitationally bonded to one another and they move round each other.

Most binary stars might appear wobble. One of the stars often appears brighter than the other.

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Elanso [62]
Its durability, malleability, etc the basic properties of metals
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Before of an results an experiment are accepted, which of these points must it fulfill?
jek_recluse [69]

Answer:

I think it will be (B) only because you have to do it repeatedly and analyze it and not noted, in order for the results are accepted. I May be wrong. Thanks for letting me help you.

8 0
3 years ago
A hard-water solution contains 4.8 g of calcium chloride. How much sodium phosphate in grams should be added to the solution to
alexgriva [62]

Answer:

4.7 g

Explanation:

The reaction that takes place is:

  • 3CaCl₂(aq) + 2Na₃PO₄(aq) → Ca₃(PO₄)₂(s) + 6NaCl(aq)

First we <u>convert 4.8 g of CaCl₂ into moles</u>, using its <em>molar mass:</em>

  • 4.8 g ÷ 110.98 g/mol = 0.0432 mol CaCl₂

Then we<u> convert CaCl₂ moles into Na₃PO₄ moles</u>, using the <em>stochiometric coefficients of the balanced reaction</em>:

  • 0.0432 mol CaCl₂ * \frac{2molNa_3PO_4}{3molCaCl_2} = 0.0288 mol Na₃PO₄

Finally we <u>convert 0.0288 moles of Na₃PO₄ into grams</u>, using it<em>s molar mass</em>:

  • 0.0288 mol Na₃PO₄ * 164 g/mol = 4.7 g

8 0
3 years ago
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