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Gnesinka [82]
3 years ago
11

How many balance electrons does sodium have

Chemistry
2 answers:
PtichkaEL [24]3 years ago
6 0

Answer:

1

Explanation:

Margarita [4]3 years ago
4 0

Answer:

it has one valence electron

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What element is represented by the following electron configuration:
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For better representation, let me rewrite the electronic configuration:

<span>1s</span>²<span>2s</span>²<span>2p</span>⁶<span>3s</span>²<span>3p</span>⁶<span>4s</span>²<span>3d</span>⁴

The exponents represent the number of electrons in the designated subshell. Thus, the total number of electrons are:
# of electrons = 2+2+6+2+6+2+4 = 24

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How much energy will it take to raise the temperature of 75.0 g of water from 20.0°C to 55.0°C?
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Answer:

We can use heat = mcΔT to determine the amount of heat, but first we need to determine ΔT. Because the final temperature of the water is 55°C and the initial temperature is 20.0°C, ΔT is as follows:

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=  heat=(75.0 g)(1 cal/ g· °C )(35.0°C) =

= 75x1x35=2625 cal

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