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lara31 [8.8K]
2 years ago
13

What is the density of a board dimensions are 5.54 cm x 10.6 cm X 199 cm and whose mass is 28.6kg

Chemistry
1 answer:
exis [7]2 years ago
4 0

Answer:

d=2.44\ g/cm^3

Explanation:

Given that,

The dimensions of the board is 5.54 cm x 10.6 cm X 199 cm.

The mass of the board is 28.6 kg.

Since, 1 kg = 1000 grams

28.6 kg = 28.6 × 1000 g = 28600 grams

Density = mass/volume

So,

d=\dfrac{28600\ g}{(5.54\times 10.6\times 199)\ cm^3}\\\\d=2.44\ g/cm^3

So, the density of a board is 2.44\ g/cm^3.

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3 years ago
What is the answer to the net ionic equation FeO(s)+2HClO4(aq)--&gt; Fe(ClO4)2 (aq)+ H2O(l)
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8 0
3 years ago
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A city continuously disposes of effluent from a wastewater treatment plant into a river. The minimum flow in the river is 130 m3
Vera_Pavlovna [14]

Answer:

2.54\ \text{mg/L}

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6 0
2 years ago
What are three forms of energy that transform into a hot air balloon? ___ to ___ to ___
34kurt

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2 years ago
At 80 ∘C, Kc=1.87×10^−3 for the reaction PH3BCl3(s)⇌PH3(g)+BCl3(g)
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Answer:

A) he equilibrium concentration of PH3 = 0.0432M

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The detailed steps and appropriate calculation is as shown in the attached file.

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