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2 years ago

Which of these elements exist as a liquid at normal Earth temperatures? Select all that apply. bromine sodium oxygen mercury

Chemistry

2 answers:

Nataly [62]2 years ago

8 0

Explanation:

Normal Earth temperature means the standard temperature and pressure conditions. At STP, temperature is 273 K or zero degree celsius and pressure is 1 atm.

For gases at STP, volume is equal to 22.4 liter.

So, at normal Earth temperature sodium exists as a solid whereas oxygen exists as a gas.

On the other hand, both bromine and mercury exists as liquid at normal Earth temperature.

Anni [7]2 years ago

4 0

Mercury exist as liquid at normal earth tempertures

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Calculate the amount of carbon dioxid gas in 1.505x10^23 molecules of the gas.

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Explanation:

We need to find the amount of carbon dioxide gas in $1.505\times 10^{23}$ molecules of the gas.

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Which factor determine the reactivity of alkyl halide

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3 years ago

Select the name of the element with a condensed ground-state electron configuration of [kr] 5s14d7.

Vilka [71]

elements have equal number of protons and neutrons

the condensed format is when the closest noble gas with the closest electron configuration is given, this closest noble gas atomic number should be lesser than the atoms atomic number

atomic number of Kr is 36

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atomic number of the atom is 44

element with atomic number 44 is Ruthenium - Ru

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2 years ago

Read 2 more answers