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Mama L [17]
3 years ago
12

2. Which pair of elements does not form an ionic bond?

Chemistry
1 answer:
Gekata [30.6K]3 years ago
5 0

\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the concept of Bond Formation.

Answer is :-

B.) O and Cl

These both are Non-Metals with high Electronegativity nature, hence none of them can share electrons to foram any bond to eventually form a Electro valentines Compound.

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Ellie started her reaction between the KMnO4 and malonic acid by first heating the two solutions in the hot water bath. She then
sergij07 [2.7K]

Answer:

The time recorded in the lab notebook is shorter than the true reaction time because the reaction starts the moment the two solutions were mixed

Explanation:

A chemical reaction is "a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction" (Oxford dictionary).

A chemical reaction begins immediately the reactants are mixed together in a reaction vessel because the particles of the reactants immediately begin to collide with each other. There is no lost time before reactions begins!

This implies that, the time recorded in the lab notebook is shorter than the true reaction time because the reaction starts the moment the two solutions were mixed.

5 0
3 years ago
The power source for all electrical objects must be a what
mariarad [96]
A circuit is a closed loop that electrons can travel in. A source of electricity, such as a battery, provides electrical energy in the circuit. ... The appliance may, for example, provide light or heat or mechanical energy.
6 0
3 years ago
The complete combustion of 0.521 g of a snack bar in a calorimeter (Ccal = 6.15 kJ/°C) raises the temperature of the calorimeter
slega [8]
The food raises the temperature of the calorimeter by 1.29 °C. The amount of calorie produced by the combustion would be: 1.29°C * <span> 6.15 kJ/°C= 7.9335 kJ.

If the food weight is </span>0.521g, then the food value would be: 
7.9335 kJ/ 0.521g / (4.184kcal/kJ) =
(15.227 kJ/g) / (4.184kcal/kJ)= 3.64 kilo calorie/gram
6 0
4 years ago
Read 2 more answers
Name a cause and effect for each of the following:
ddd [48]

Deforestation, Desertification and Urbanization are very closely related phenomenon whose cause and effects are briefly discussed below.

<h3><u>Explanation:</u></h3>

Deforestation is caused due to cutting of trees for economic purposes and other poachers.

Deforestation effects the natural habitat of the animals of forests leading to endangering of different plants and animals. It also reduces diversity of environment, causes global warming, change in climate, rainfall patterns etc.

Desertification is caused due to deforestation, due to natural calamities like forest fires, overgrazing and even due to over population.

Desertification causes a huge loss to environment. Erosion of soil, deepening of ground water levels, loss of rainfall, draught are common. Rise in temperature and change of climates are also seen.

Urbanisation is caused by main two reasons - over population and rural to urban migration of people.

Urbanization has several good effects like growth of technologies etc. But it also increases disease rates due to increase in pollution. Several mental stress and depression are also seen to affect urban people more than rural ones.

8 0
3 years ago
Try pulling an electron away from each atom. Based on this experiment, which atom is a metal? Which is a nonmetal? (Sodium and C
Tpy6a [65]

Explanation:

Sodium is a metal

Chlorine is a non-metal

They both form ionic bonds in between them and exhibit their characters.

A metal is an electropositive material with a large atomic radius.

A non-metal is an electronegative material.

In forming an ionic bond, a metal will donate its electron. The non-metals gains this lost electrons.

The metals becomes positively charged and the non-metals carry a negative charge.

The electrostatic force of attraction between them causes the formation of an ionic bond in between them.

learn more:

Ionic bond brainly.com/question/6071838

#learnwithBrainly

6 0
3 years ago
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