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4 years ago

Which element melts at room temperature?

Chemistry

2 answers:

daser333 [38]4 years ago

6 0

A melting element at room temperature consist of francium.

~Evie

just olya [345]4 years ago

4 0

Francium is an element that melts at room temperature. Francium is a highly reactive element, and only contains one valence electron, which is very ironic in my opinion.

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How many atoms are in 3.89 moles of Cu?

AleksandrR [38]

Answer:

2.34×10^24

Explanation:

N=n×Na

N=3.89×(6.02×10^23)

N=2.34×+0^24 atoms of Cu

3 0

4 years ago

ЗKOH + H3PO4=K3PO4 + 3H2O <br> what is the reaction

pentagon [3]

Answer: The given reaction is a neutralization reaction.

Explanation:

When an acid chemically reacts with a base then it leads to the formation of salt and water.

For example, $3KOH + H_{3}PO_{4} \rightarrow K_{3}PO_{4} + 3H_{2}O$

Here, KOH is a the base and $H_{3}PO_{4}$ is an acid which on chemical reaction with each other leads to the formation of salt $(K_{3}PO_{4})$ and water $(H_{2}O)$ .

Thus, we can conclude that the given reaction is a neutralization reaction.

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3 years ago

Al2(SO3)3 what are the number of atoms

allochka39001 [22]

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4 years ago

(iii) Give two reasons why the electrolyte contains cryolite

V125BC [204]

Answer:

The mixture of cryolite and aluminum oxide has a lower melting point than pure aluminum oxide. This means a lower amount of energy is required to establish effective conditions for electrolysis and thus makes it more cost effective.

Explanation:

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3 years ago

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vitfil [10]

Answer:

Explanation:

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3 years ago