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3 years ago

Give 7 and example of how each wave in the EM spectrum in used in our daily lives

Chemistry

1 answer:

bogdanovich [222]3 years ago

8 0

1. it’s use for our food in like microwaves and ovens
2. airplanes are guided by radar waves,
3.the tv is used by electromagnetic waves
4. they are used in heaters,
5.infrared cameras which detect people in the dark
6.Allows airport security to observe the internal contents of objects and luggage using airport scanners
7.doctors use electromagnetic waves in x-rays

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H2 + N2 ---> NH3

Stolb23 [73]

The balanced equation would be
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4 years ago

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DedPeter [7]

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4 years ago

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Write the molecular, ionic, and net ionic equations for the reaction of a: hcl with koh, b: hcho2 with lioh and c: n2h4 with hcl

igor_vitrenko [27]

Answer:

Here's what I get.

Explanation:

a. HCl + KOH

$\rm Molecular: KOH(aq)+ HCl(aq) \longrightarrow \, KCl(aq) + H_{2}O(l)\\\rm Ionic: K^{+}(aq) + OH^{-}(aq)+ H^{+}(aq) + Cl^{-}(aq) \longrightarrow \, K^{+}(aq)+ Cl^{-}(aq) + H_{2}O(l)\\\rm Net ionic: OH^{-}(aq)+ H^{+}(aq) \longrightarrow \, H_{2}O(l)\\$

b. HCHO₂ + LiOH

Only the first H in HCHO₂ is acidic

$\rm Molecular: HCHO_{2}(aq)+ LiOH(aq) \longrightarrow \, LiCHO_{2}(aq) + H_{2}O(l)\\\rm Ionic: HCHO_{2}(aq) + Li^{+}(aq) + OH^{-}(aq) \longrightarrow \, Li^{+}(aq)+ CHO_{2}^{-}(aq) + H_{2}O(l)\\\rm Net ionic: HCHO_{2}(aq) + OH^{-}(aq) \longrightarrow \, CHO_{2}^{-}(aq) + H_{2}O(l)\\$

c. N₂H₄ + HCl

Both N atoms in N₂H₄ are basic, so the compound reacts with 2 mol of HCl.

$\rm Molecular: N_{2}H_{4}(aq)+ 2HCl(aq) \longrightarrow \, N_{2}H_{6}Cl_{2}(aq) \\\rm Ionic: \qquad N_{2}H_{4} (aq) + 2H^{+}(aq) + 2Cl^{-}(aq) \longrightarrow \, N_{2}H_{6}^{+}(aq) + 2Cl^{-}(aq)\\\rm Net ionic: \ N_{2}H_{4} (aq) + 2H^{+}(aq) \longrightarrow \, N_{2}H_{6}^{+}(aq)\\$

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3 years ago

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nikitadnepr [17]

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Explanation:

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timama [110]

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