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What is the correct increasing order of reactivity for sn2 reactions?
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What is the correct increasing order of evaporation of petrol alcohol kerosene water?
kerosine oil, water, alcohol, petrol...:)
Which shows the correct order or increasing trophic level from producer to tertiary consumers?
primary consumers -->secondary consumers -->tertiary consumers
What is the trend in the reactivity of the three alkali metals with water?
When an alkali metal is placed in water it will float and produce a gas like hydrogen which ignites in the presence of oxygen - producing a flame. The reactions get more and more vigorous as you move down the group. I may only be a grade 9 student but I think I may know this. Lithium, Sodium and Potassium are HIGHLY reactive to water. Lithium lightly sizzles when it reacts with water, and it produces a small amount of gas. Sodium reacts a little more, it bubbles on the water and creates a large amount of gas. Potassium has the most violent reaction to water, it actually pops when it comes into contact. It really explodes when you put it in water. It almost produces a red flame on top of the water. So you see, they are ordered by the level of reactivity. -------------------- Francium is the most reactive and electronegative chemical element; unfortunately is extremely rare and currently not available for chemical experiments. Also is very radioactive. The increasing order of reactivity with water is: Lithium, Sodium, Potassium, Rubidium, Caesium, Francium. The reactivity of chemical elements is controlled by their electronegativity; this parameter is decreasing from lithium to francium. The minimal electronegativity is equivalent to maximal reactivity.
How can you use the reactivity series?
The Reactivity Series is a way of organising metals in a series from the most reactive to the least reactive. In introductory chemistry, the reactivity series is an empirical series of metals, in order of "reactivity" from highest to lowest. It is used to summarize information about the reactions of metals with acids and water, displacement reactions and the extraction of metals from their ores.Going from bottom to top, the metals:increase in reactivity;lose electrons more readily to form positive ions;corrode or tarnish more readily;require more energy (and different methods) to be separated from their ores;become stronger reducing agents.The most reactivePotassiumSodiumLithiumCalciumMagnesiumAluminumCarbon all below carbon up to hydrogen are extracted from their ores by heating with carbon.ZincIronLeadHydrogen all below hydrogen can be extraced from their ores using hydrogen.CopperSilver - these metals are unreactive and exist naturally. They are obtained by physical processes . e.g panning.Gold - same as silver.The least reactive
What are three bacterial species in order of their increasing fastidiousness?
list the three bacterial species in order of their increasing fastidiousness
As the elements in Group 17 are considered in order of increasing atomic number the chemical reactivity of each successive element decreases increases or remains the same?
The chemical reactivity decreases in group 17 as you go down the group.
What is the link between displacement reaction and the reactivity series?
the reactivity series lists elements in order from most reactive to least reactive. in a displacement reaction, a more reactive element will "displace" a less reactive element in a compound, the reactivity series can therefore be used to determine which displacement reactions are possible.
Are elements organized on the periodic table by increasing order of atomic number?
Yes, it is correct.
What is the correct order of these numbers -3.7 7.4 -7.9 the negative square root of 7?
The numbers in increasing order of magnitude (which need not be the correct order) are -7.9, -3.7, -sqrt(7), 7.4.
What are the mazit metals and what is their order of reactivity?
magnesium aluminium zinc iron tin in oreder of reactivity :)
What is the correct increasing order of evaporation of petrol alcohol kerosene water?
kerosine oil, water, alcohol, petrol...:)
Which shows the correct order or increasing trophic level from producer to tertiary consumers?
primary consumers -->secondary consumers -->tertiary consumers
Mendeleev arranged the elements in his periodic table in order of?
Mendeleev arranged the elements by increasing atomic mass instead of like today by increasing atomic number.
Comparing and ordering decimals 5.42 for?
A single number cannot be compared. Also, it will always be in a correct order - increasing or decreasing!
When was Mendeleev's contribution to the atomic theory published?
In 1869, Dmitri Mendeleev listed the elements in order of increasing atomic weight and grouped elements that seemed to have similar chemical reactions.
Which shows the correct order of increasing trophic level from producer to tertiary consumer?
accutually its grass, deer, wolf , and fungi i know this will help you all...
How do you order integers?
in increasing order
