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cricket20 [7]
3 years ago
10

What is the bond between a posative and a negative ion called

Chemistry
1 answer:
Mnenie [13.5K]3 years ago
4 0
The ion between it is a Ionic bond
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Which reaction occurs at the anode in an electrochemical cell?
dedylja [7]
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2 years ago
Explain how to identify a metal from visual observations
yarga [219]
I am a blacksmith, I would know this one. Alright... Aluminum, has a great shine to it, and it looks like silver... Same with tin, except aluminum is super shiny and sleek, while tin has a dull shine to it. Steel, is flat (color-wise), and it has a slight shine to it.
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4 0
3 years ago
20cm³ of methane gas was burnt in 20cm³ of oxygen. write a balanced chemical equation for the reaction and determine which of th
solniwko [45]

Answer:

CH4 +O2 => CO2 + 2 H2O

None were in excess

Explanation:

Equation for the reaction is,

CH4 + O2 =>CO2 +2 H2O

No of moles of CH4 = (20 /1000)/24 =0.02 /24 = 0.00083

No of moles of O2 =20 /24000 = 0.0083

CH4 : O2 = 1:1

THEREFORE

None of the gases were in excess.

7 0
4 years ago
when a 12.7 g chunk of zinc dissolves in 500. ml of 1.450 m hcl, what is the concentration of hydrogen ions remaining in the fin
Schach [20]

Concentration of hydrogen ions remaining in the final solution is .673 M

In original solution we have 1.450M of HCl

1.450 M means 1.450 moles of HCl in 1 liter of water

Therefore, number of moles of HCl in 500ml of water will be

                                                           =  1.450*0.5 moles

                                                           =  0.725 moles of HCl

Reaction between HCl and Zn happens when zinc is added -

         Zn(s)  +  2HCl     →      ZnCl_{2}  +  H_{2}

Therefore two moles of HCl is needed for 1 mole of zinc

Thus number of moles of HCl needed to react with 12.7g of Zinc will be

                                   =  (12.7/ 65.38   moles      of Zn )* (2moles of HCl/mole of Zn)

                                   = .388 Moles

So moles of HCl left  = 0.725 - .3888

                                  =  0.3365 moles

In 1 Mole of HCl there is 1 mole of H because

                                    HCl  →  H^{+}  +  Cl^{-}

Therefore in 0.3365 mole HCl there will be 0.3365 moles of H

Thus final concentration of H ions in final solution is =

                                      =  0.3365mole/0.5 L

                                      = 0.673M

To know more about concentration in solution

brainly.com/question/22837979

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8 0
2 years ago
Balancing equations H3PO4 + (NH4)2MoO4 + HNO3 = (NH4)3PO4*12MoO3 + NH4NO3 + H2O
faltersainse [42]

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5 0
3 years ago
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