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irga5000 [103]
3 years ago
9

True or false atoms are the smallest particle of an element that have that elements properties

Chemistry
2 answers:
alexgriva [62]3 years ago
7 0

Answer:

true

Explanation:

hoping for the brainliest

navik [9.2K]3 years ago
3 0

Answer:false

Explanation:false

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If a reaction occurs when a piece of metal is placed in a solution, what can you conclude about the solution?
USPshnik [31]
Hello!

If a reaction occurs when a piece of metal is placed in a solution, you can conclude that the solution is <span>probably acidic because bases rarely react with metals.

Strong Acids, like HCl, react with metals to produce salts and release gaseous hydrogen (H</span>₂) which is evidenced by the generation of bubbles in the solution. The general chemical equation for this kind of reactions for a metal M and an acid HA is:

2M(s) + 2HA(aq) → 2MA(aq) + H₂(g)

Have a nice day!
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4 0
3 years ago
Will lead (Pb) react with HgSO4?
lora16 [44]

Answer:

B

Explanation:

The electrochemical series can be used to check if a particular element has a greater activity than the other. Firstly, on the electrochemical series, it can be seen that lead is at a higher position compared to mercury. All things being equal, it will show a higher activity than mercury and hence can knock it off its salt.

Although it is the Overall standard electrode potential that tells us if a reaction is feasible or not, we can use the activity series to quickly discern if the reaction is possible or not. The overall standard electrode potential of both is positive which makes the reaction to be feasible and hence lead can display mercury off its salt

7 0
3 years ago
We can’t see the dark side of the moon from earth because
choli [55]
On the Moon<span>, there is (as on </span>Earth) day and night (though the day is as long as month onEarth<span>) and no spot remains </span>dark<span> for longer (except for the pole caps as on </span>Earth<span>). There is, of course, the far </span>side of the Moon<span>, most of which is invisible from </span>Earth.
3 0
3 years ago
How important is the resonance structure shown here to the overall structure of carbon dioxide?
Tcecarenko [31]

1. Resonance structures are a better description of a Lewis dot structure .

2. Best resonance structure is the one with the least formal charge.


<u>EXPLAINATION OF RASONANCE STRUCTURE OF CARBON DIOXIDE</u>

1.Carbon dioxide has three resonance structures .

2. The CO2 molecule has a total of 16 valence electrons ,

  1C = 4 electrons

  2O= 12 electrons

<u>three resonance structures for  CO2</u>

1. The atoms in all three resonance structures have full octets;

 structure 1 will be more stable because it has no separation of charge.

2. Structures 2 and 3 show charge separation caused by the presence of formal charges on both oxygen atoms.  

6 0
3 years ago
Think of an everyday activity where removal of one of the products helps the reaction to faster in forward direction?​
elena55 [62]

Answer:

Cooking with open, exposed flame to prevent build up of CO₂ which will extinguish the fire

Explanation:

In the cooking process whereby food is heated by the combustion of cooking gas as follows;

C₄H₁₀ (g) + (13/2)O₂ → 4CO₂(g) + 5H₂O(g),  ΔH = -2658 kJ·mol⁻¹

The product of the combustion must be allowed to escape freely to allow for more reactant molecules of oxygen and butane to effectively combine.

Whereby, the CO₂ is allowed to remain and accumulate at the reaction site, the CO₂ displaces the oxygen and reduces the butane such that as the CO₂ builds up without removal, the CO₂  and butane will left in the mixture while the fire is extinguished.

4 0
3 years ago
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