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Oksana_A [137]
3 years ago
12

Carlos uses a machine to decrease his force Which of the following statements is true?

Chemistry
1 answer:
Korolek [52]3 years ago
3 0

I believe the answer is is that his machine must increase the distance the object moves.

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What element transmits heat easily
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A conductor transmits heat and electrical good. 
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How much energy (in joules) is released when 0.06 kilograms of mercury is condensed to a liquid at the same temperature? A. 51,3
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The amount of energy released when 0.06 kg of mercury condenses at the same temperature can be calculated using its latent heat of fusion which is the opposite of melting. Latent heat of fusion and melting can be used because they have the same magnitude, but opposite signs. Latent heat is the amount of energy required to change the state or phase of a substance. For latent heat, there is no temperature change. The equation is:

E = m(ΔH)

where:
m = mass of substance
ΔH = latent heat of fusion or melting

According to data, the ΔH of mercury is approximately 11.6 kJ/kg.

E = 0.06kg (11.6 kJ/kg) = 0.696 kJ or 696 J

The answer is D. 697.08 J. Note that small differences could be due to rounding off or different data sources.
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What is the chemical formula for the compound magnesium perchlorate? Use the list of polyatomic ions and the periodic table to h
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The chemical formula for the compound magnesium perchlorate is Mg(ClO₄)₂

Magnesium perchlorate or Mg(ClO₄)₂ is an ionic compound.

Perchlorate here is an anion which is represented by ClO₄⁻. Perchlorate is a polyatiomic anion, where one Cl atom is bonded to four O atoms.

The magnesium cation is represented by Mg²⁺

So one Mg²⁺ cation combines with two ClO₄⁻ anion to form one molecule of Mg(ClO₄)₂


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Where should the neutrons be added to this atomic model?
Lera25 [3.4K]

Answer:

with the proton inside the nucleus

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