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3 years ago

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Chemistry

2 answers:

miss Akunina [59]3 years ago

4 0

Answer: He was able to conclude that atoms have subparticles called electrons and they are negatively charge

Explanation:

RideAnS [48]3 years ago

3 0

Answer: Conclusion is that the cathode rays carries a negatively charged particle.

Explanation: The cathode ray tube experiment illustrates the discovery of electrons. This is due to the fact that beam of light bent towards the positively charged metal plate if put towards the glass tube. Since unlike particles attract it tells us that the beam carries a negative charge.

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How many electrons would Lithium with a -1 charge have?

Helen [10]

Answer:

lithium=atomic no.=3

Explanation:

-1 charge on lithium means one electron has added to it .Thus,

Li-1=no. of electrons=3+1=4

3 0

3 years ago

If 2.65 mol of O2 gas has a volume of 49.0 L at 180 C, what is the pressure of the gas?

adoni [48]

Answer:

2.01atm

Explanation:

5 0

2 years ago

Which is the balanced single displacement reaction between Aluminum (Al3+) and Copper Sulfate (Cu2+(SO4)2-)

Aliun [14]

Answer:

The balanced single displacement reaction between aluminum and copper sulphate is as follows.

$2Al(s)+3CuSO_{4}(aq)\rightarrow Al_{2}(SO_{4})_{3}(aq)+3Cu(s)$

Explanation:

The given ions are as follows.

$Al^{3+}$ - Aluminium ion and copper sulfate ion.

Single displacement reaction occurs one element replaces another element.

Hence, the balanced chemical reaction is as follows.

$2Al(s)+3CuSO_{4}(aq)\rightarrow Al_{2}(SO_{4})_{3}(aq)+3Cu(s)$

Oxidation half reaction:

$Al\rightarrow Al^{3+}+3e^{-}$

Aluminium loses three electrons.

Reduction half reaction:

$Cu^{2+}+2e^{-}\rightarrow Cu(s)$

Copper gain three electrons.

4 0

3 years ago

Compound

nlexa [21]

Answer:

Explanation:

Because of single replacement the ideal shape comes in form

5 0

2 years ago

The first part of a balanced chemical equation for a chemical reaction is shown below:

Bond [772]

Answer:

The answer to your question is 6

Explanation:

Data

Cu + 2AgNO₃ ⇒

To find the answer, count the number of each element in the reactants

Element Quantity

Copper 1

Silver 2

Nitrogen 1

Oxygen 6

Then, in the products, there must be 6 oxygens so in the products there must be 6 oxygens so the reaction is balanced.

8 0

3 years ago