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Elis [28]
2 years ago
10

I need help with my work

Chemistry
1 answer:
elena-14-01-66 [18.8K]2 years ago
8 0

Answer:

2 the mass is greater than 10.0gram

Explanation:

2 the mass is greater than 10.0gram

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You have a substance with a length of 2 cm, width of 3 cm, and a height of 4 cm. Its density is known to be .5 g/cm3. What is th
borishaifa [10]

Answer:

12 grams

Explanation:

D = m/V

0.5g/cm^3 = m/(2*3*4)

\frac{0.5g}{cm^3} = \frac{m}{24cm^3}

m = 12g

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New York state index fossil Valcouroceras is classified as
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3 years ago
Laura jala un trineo una distancia de 2000 cm usando una cuerda, con una tensión constante de 80 N. La tarea requiere de 800 J d
Andre45 [30]

Respuesta:

60°

Explicación:

Paso 1: Información dada

  • Distancia recorrida (d): 2000 cm
  • Fuerza aplicada (F): 80 N
  • Trabajo realizado (W): 800 J

Paso 2: Convertir "d" a metros

Usaremos el factor de conversión 1 m = 100 cm.

2000 cm × 1 m/100 cm = 20 m

Paso 3: Calcular el ángulo entre la cuerda y el suelo (θ)

W = F × d × cosθ

800 J = 80 N × 20 m × cosθ

θ = 60°

5 0
3 years ago
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Answer:

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6 0
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Write the balanced chemical equations for the decomposition of solid calcium hydroxide into solid calcium (ii) oxide (lime) and
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Calcium oxide (CaO) or lime in solid form can be prepared from the decomposition of calcium hydroxide {Ca(OH)_{2} in to lime (CaO) and water (H_{2}O at high temperature. The reaction is an endothermic reaction. That is heat is absorbed in this reaction process. One mole of calcium hydroxide decomposed into one mole of calcium oxide and one mole of water. The balanced reaction can be shown as-CaCO_{3} (solid) → CaO (solid) + H_{2}O (liquid). The heat of the reaction is (+) 63.7 kJ/mole of CaO.

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3 years ago
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