Chemistry, 11.06.2020 21:57 bay62

The chemical equation and thermodynamic data for the melting of tungsten are given above. Based on this information, which of the following provides the best predictions correc whether a sample of pure tungsten will melt at 3723 K? A. The sample will not melt because T > H/s
B. The sample will not melt because T< H/s
C. The sample will mel because T>
D. The sample will mel because T

Answers: 3

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Answer from: ritiguda

Based on the information above provided, the best predictions correct whether a sample of pure tungsten will melt at 3723 K is The sample will mel because T>

Tungsten

Tungsten is a very hard and brittle material. It properties include a very high melting point, a low vapor pressure and the highest hardness and strength of all metals. Tungsten has good corrosion resistance against most acids and alkalis.

Learn more about tungsten:

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Answer from: chaitanyac90

C. The sample will melt because T < H/s

Explanation:

The tungsten is a pure form of metal. It has a melting point higher than 1650 C. The pure sample of tungsten will met at 3723 K because the change in H over change in S is greater than T. The tungsten will go to a transition from solid to liquid and will melt completely.

Answer from: Quest

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

Answer from: Quest

thats a little if u want the answer just look it up on google thats what i do haha : )

Draw the orbitals for the elements and give their number of electrons

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The chemical equation and thermodynamic data for the melting of tungsten are given above. Based on t...

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