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andre [41]
3 years ago
14

Metals____ valence electrons to form cations?

Chemistry
1 answer:
Goryan [66]3 years ago
3 0

Answer:

metals lose valence electrons to form cations

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An unknown metal with a mass of 54.0 g required 773 J of energy in order to change its temperature from 63.0 C to 100.0 C. What
Vitek1552 [10]

Answer:

Metal is copper.

Explanation:

Mass of a metal, m = 54 g

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The temperature changes from 63.0 °C to 100.0 °C.

We need to identify the metal. Heat required to raise the temperature is given by :

Q=mc\Delta T

c is specific heat of the metal

We can identify the metal by finding its specific heat.

c=\dfrac{Q}{m\Delta T}\\\\c=\dfrac{773}{54\times (100-63)}\\\\=0.386\ J/g^{\circ} C

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8 0
3 years ago
TRUE OR FALSE : The aim of an experiment can often tell us which variable is the independent variable and which variable is the
abruzzese [7]

Answer:

True

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7 0
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When a Arrhenius base is dissolved in h2o the only negative ion present is what solution
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An arrhenius base is defined as a base substance that increases the concentration of OH- ions when added to water.

When adding arrhenius base to water, the solution will have:
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Therefore, as we can note, the only negative ion that would be available in the solution is the OH- ion

Hope this helps :)
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What accounts for the properties of metal
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Metals are "shiny", have lustrous surfaces, high melting and boiling points, they are hard, they are dense.
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