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BabaBlast [244]

3 years ago

5

Are all synthetic products bad?

1 answer:

Alja [10]3 years ago

7 0

Most of them are . probably not all though

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Help me answer the questions in the photo i am very confused

AlladinOne [14]

Answer:

The range is also the whole of R

Explanation:

8 0

3 years ago

If a shell can hold a maximum of 32 electrons, what is the value of n?<br> 2

Fittoniya [83]

$\\ \rm\rightarrowtail 2n^2=32$

$\\ \rm\rightarrowtail n^2=32/2$

$\\ \rm\rightarrowtail n^2=16$

$\\ \rm\rightarrowtail n=\sqrt{16}$

$\\ \rm\rightarrowtail n=4$

6 0

2 years ago

Pure copper coin has a mass of 3.25g how many moles of copper are in the coin

lorasvet [3.4K]

3.25= 0.02830 moles
hope its right :(

6 0

3 years ago

What happens to the energy released by an exothermic reaction

Stels [109]

Answer: 1

Explanation:

5 0

4 years ago

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Show the difference in the reactivity of Na,Ca,Mg,Al,Fe,Cu with H2O

Vesnalui [34]

Answer:

Explanation:

Na react with H2O to form NAOH

2 Na+2H2O....................2NAOH + H2

Ca react with water and form calcium hydroxide

Ca + 2H2O........................Ca(OH)2

Mg react with water and form Magnesium hydroxide

Mg +2H2O .........................Mg(OH)2 however this coating of mg(oh)2 prevent it from further reaction

Fe react with water and form ferric hydride

3Fe +H2O.......................2 FeH +FeO

copper do not react with water

7 0

4 years ago