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3 years ago

What is the noble gas configuration for zirconium?

Chemistry

2 answers:

laiz [17]3 years ago

8 0

Answer:

Explanation:

A noble gas configuration of an atom consists of the elemental symbol of the last noble gas prior to that atom, followed by the configuration of the remaining electrons.

daser333 [38]3 years ago

3 0

Answer:

[Kr] 4d² 5s² option b will be correct answer

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Write the combustion product of butane in excess<br> oxygen.

Leto [7]

Answer:

The name of the products are CO2 = carbon dioxide and H2O = water. The type of reaction is a combustion reaction.

Explanation:

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3 years ago

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NaCl has a Delta. Hfus = 30. 2 kJ/mol. What is the mass of a sample of NaCl that needs 732. 6 kJ of heat to melt completely? Use

tia_tia [17]

The mass of NaCl sample has been 24.3 g. Thus, option A is correct.

The heat of fusion has been the amount of heat required to convert 1 mole of substance into solid to liquid state.

The heat required has been given as:

$Q=m\Delta H$

<h3>Computation for the mass of NaCl</h3>

The given solution has heat of fusion, $\Delta H_{fus}=30.2\rm kJ/mol$

The heat required to melt the sample has been, $Q=732.6\;\rm kJ/mol$

Substituting the values for the mass of NaCl

$\rm 732.6\;kJ/mol=Mass\;\times\;30.2\;kJ/mol\\\\
Mass=\dfrac{732.6}{30.2}\;g\\\\
 Mass=24.3\;g\\$

The mass of NaCl sample has been 24.3 g. Thus, option A is correct.

Learn more about heat of fusion, here:

brainly.com/question/87248

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3 years ago

17. Physical properties of a material include all but ________________.

Amiraneli [1.4K]

Answer:

17)c: the reactivity of a metal.

Explanation:

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3 years ago

PLEASE HELP FOR 15 BRAINY POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

evablogger [386]

Answer:

i dont know sorry

Explanation:

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3 years ago

Lines on a map joining places that have the same temperature?

vazorg [7]

Answer:

Isotherms

Explanation:

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