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3 years ago

NEED HELP AND WILL GIVE ALOT OF POINTS

Chemistry

1 answer:

zmey [24]3 years ago

7 0

C. nucleus because that is where most of an atom's weight is located.

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(c) ammonium carbonate + lead nitrate ? Step-by-step solution Step 1 of 3 v Step 2 of 3 v Step 3 of 3 ^ c) The ions formed in so

kenny6666 [7]

Answer: The net ionic equation is written below.

Explanation:

Net ionic equation of any reaction does not include any spectator ions.

Spectator ions are defined as the ions which does not get involved in a chemical equation. They are found on both the sides of the chemical reaction when it is present in ionic form.

The chemical equation for the reaction of ammonium carbonate and lead nitrate is given as:

$(NH_4)_2CO_3(aq.)+Pb(NO_3)_2(aq.)\rightarrow PbCO_3(s)+2NH_4NO_3(aq.)$

Ionic form of the above equation follows:

$2NH_4^+(aq.)+CO_3^{2-}(aq.)+Pb^{2+}(aq.)+2NO_3^-(aq.)\rightarrow PbCO_3(s)+2NH_4^+(aq.)+2NO_3^-(aq.)$

As, ammonium and nitrate ions are present on both the sides of the reaction. Thus, it will not be present in the net ionic equation and are spectator ions.

The net ionic equation for the above reaction follows:

$Pb^{2+}(aq.)+CO_3^{2-}(aq.)\rightarrow PbCO_3(s)$

Hence, the net ionic equation is written above.

3 0

3 years ago

The value of h for the reaction below is -73 kj how many kj of heat are released

jarptica [38.1K]

If the value of H is positive, it means you have to add that much heat to complete the reaction. If H is negative, it means that much heat is released during the chemical process. Because it is -73 kJ, 73 kJ of heat are released in the reaction.

7 0

3 years ago

Weeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Rus_ich [418]

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7 0

3 years ago

Explain why it is advantageous that water does not evaporate quickly on earth PLEASE HELP!!

stich3 [128]

Answer:

When the humidity is 100 percent, the air is saturated with water. Air pressure also affects evaporation. If air pressure is high on the surface of a body of water, then the water will not evaporate easily. The pressure pushing down on the water makes it difficult for water to escape into the atmosphere as vapor.

Explanation:

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2 years ago

_H2 SiCl2 + _H2O −−→ _H8 Si4O4 + _HCl

Serjik [45]

Answer:

Explanation:

pls mark brainliest right

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3 years ago