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Delicious77 [7]
3 years ago
13

Explain how a convection current can enable a hawk or eagle to soar upward without flapping its wings

Chemistry
1 answer:
Ksju [112]3 years ago
4 0
Convection is defined as the movement of air based on the differing temperatures of the air layers. The movement of this air causes an updraft at some point, since warmer air rises while cooler air sinks. This air also travels along the sky, whether its by a jet stream or just wind or some other form of air movement. This would provide the eagle or hawk to soar without flapping, since the air from underneath supports it up.
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Read 2 more answers
Pb (NO3)2 (aq)+KCl (aq) Express answer as a chemical equation enter if reaction if no reaction occurs identify all phases
enot [183]

Answer:

Pb (NO₃)₂(aq) + 2KCl(aq)     →   2KNO₃(aq)    +  PbCl₂(s)

Explanation:

In given chemical equation the aqueous lead (II) nitrate react with aqueous potassium chloride and form aqueous potassium nitrate and lead chloride.

Chemical equation:

Pb (NO₃)₂(aq) + KCl(aq)     →   KNO₃(aq)    +  PbCl₂(s)

Balanced chemical equation:

Pb (NO₃)₂(aq) + 2KCl(aq)     →   2KNO₃(aq)    +  PbCl₂(s)

ionic equation:

Pb²⁺ (aq) + 2NO₃⁻ (aq) + 2K⁺(aq)  +  2Cl⁻ (aq)    →     2NO₃⁻(aq)  + 2K⁺(aq)  +  PbCl₂(s)

Net ionic equation:

Pb²⁺ (aq) +  2Cl⁻ (aq)    →   PbCl₂(s)

The NO₃⁻(aq) and  K⁺(aq) are spectator ions that's why these are not written in net ionic equation. The PbCl₂ can not be splitted into ions because it is present in solid form.

Spectator ions:

These ions are same in both side of chemical reaction. These ions are cancel out. Their presence can not effect the equilibrium of reaction that's why these ions are omitted in net ionic equation.  

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