3 years ago

Name a lustrous non- metal ?

Chemistry

2 answers:

Mariana [72]3 years ago

7 0

Iodine is the answer

kogti [31]3 years ago

5 0

Answer:

it is iodine it seems very right

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Question 2 of 15

guapka [62]

Answer:

B. The products are nuclei of elements that are different from the original elements.

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1 year ago

Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas

Zinaida [17]

Answer: Number of molecules of hydrogen gas $6.32\times 10^{32}$

Explanation:

$2Na+2H_2O\rightarrow 2NaOH+H_2$

Number of moles of sodium = $\frac{\text{mass of sodium}}{\text{molar mass of sodium}}=\frac{48.7 g}{23 g/mol}=2.11mol$

According to reaction , 2 moles of sodium produces 1 mole of hydrogen gas , then 2.11 mol of sodium will= $\frac{1}{2}\times 2.11 mol$ of hydrogen gas that is 1.05 moles of hydrogen gas.

Number of molecules = $N_A(\text{Avogadro number})\times$ moles of substance

Moles of hydrogen gas formed = 1.05 moles

Number of molecules of hydrogen gas = $N_A\times$ moles of hydrogen gas

Number of molecules of hydrogen gas $=6.022\times 10^{23} mole^{-1}\times 1.05 mole=6.32\times 10^{32}$

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What trend is seen in atom size, going down the periodic table?

m_a_m_a [10]

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It is called Ionization Energy.

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3 years ago

What can you infer about arid climates from their name?

gayaneshka [121]

The receive very little rainfall

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3 years ago

1 webbed feet <br> 2wing structure <br> 3beaks <br> 4 eye color

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I believe it's webbed feet

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Name a lustrous non- metal ?​

Name a lustrous non- metal ?