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3 years ago

2) All forms of radioisotopes:

Chemistry

2 answers:

Anarel [89]3 years ago

7 0

The answer is the letter d

omeli [17]3 years ago

7 0

Answer:

It will Cause IMMEDIATE health problems

Explanation:

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Which word signals a nonrestrictive clause in a complex sentence? T F

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3 years ago

Copy and complete the concept map using the following:

lapo4ka [179]

Answer:

a) Alkali

b) Na

c) Cs

d) Inner Transition

e) actinides

f) Fe

g) Hg

Explanation:

K, Na and Cs are all Alkali Metals
Fe, Hg and Ag are all Transition Metals
actinides and lanthanides are known as the Inner Transition Metal

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3 years ago

Carlos is making phosphorus trichloride using the equation below. He uses 15.5 g of phosphorus and collects 50.9 g of phosphorus

Oxana [17]

Answer : The mass of chlorine reacted with the phosphorus is, 53.25 grams.

Explanation :

First we have to calculate the moles of phosphorus.

$\text{Moles of phosphorus}=\frac{\text{Mass of phosphorus}}{\text{Molar mass of phosphorus}}$

$\text{Moles of phosphorus}=\frac{15.5g}{31g/mol}=0.5mol$

Now we have to calculate the moles of $Cl_2$

The balanced chemical reaction is:

$2P+3Cl_2\rightarrow 2PCl_3$

From the balanced chemical reaction, we conclude that

As, 2 moles of phosphorous react with 3 moles of $Cl_2$

So, 0.5 moles of phosphorous react with $\frac{3}{2}\times 0.5=0.75$ moles of $Cl_2$

Now we have to calculate the mass of $Cl_2$

$\text{Mass of }Cl_2=\text{Moles of }Cl_2\times \text{Molar mass of }Cl_2$

Molar mass of $Cl_2$ = 71 g/mol

$\text{Mass of }Cl_2=0.75mol\times 71g/mol=53.25g$

Therefore, the mass of chlorine reacted with the phosphorus is, 53.25 grams.

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I think it’s a, it has to be

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