1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dvinal [7]
3 years ago
7

Which of the following metals will react with water to produce a metal hydroxide and hydrogen gas? (2 points) Mg Li Al Pb

Chemistry
1 answer:
WITCHER [35]3 years ago
7 0
Technically, with the right conditions and catalyst(s), all of the metals will react with water to form a metal hydroxide and hydrogen gas. However, at room temperature and atmospheric pressure, lithium is the only metal that will undergo the reaction to a significant extent.
You might be interested in
Why do you require an acid catalyst to make an ester? Why not just mix acid and alcohol? Describe an alternate method of making
djverab [1.8K]

Answer:Acid catalyst is needed to increase the electrophilicity of Carbonyl group of Carboxylic acid as alcohol is a weak nucleophile.

Alternatively esters can be synthesised by converting carboxylic acid into acyl chloride using thionyl chloride(SOCl_{2} and then further treating acyl chloride with alcohol.

Carboxylic acid and esters can be easily distinguished on the basis of IR as carboxylic acid would contain a broad intense peak in 2500-3200cm_{-1} corresponding to OH stretching frequency whereas esters would not contain any such broad intense peak.

Alcohol and esters can also be distinguished using IR as alcohols would contain a broad intense peak at around 3200-3600cm_{-1}

Explanation: For the synthesis of esters using alcohol and carboxylic acid we need to add a little amount of acid in the reaction . The acid used here increases the electrophilicity of carbonyl carbon and hence makes it easier for a weaker nucleophile like alcohol to attack the carbonyl carbon of acid.

The oxygen of the carbonyl group is protonated using the acidic proton which  leads to the generation of positive charge on the oxygen. The positive charge generated is delocalised over the whole acid molecule and hence the electrophilicity of carbonyl group is increased. Kindly refer attachment for the structures.

If we simply mix the acid and alcohol then no appreciable reaction would take place between them and ester formation would not take place because the carboxylic acid in that case is not a good electrophile whereas alcohol is also not a very strong nucleophile which can attack the carbonyl group.

Alternatively we can use thionyl chloride or any other reagent which can convert the carboxylic acid into acyl chloride. Acyl chloride is very elctrophilic and alcohol can very easily attack the acyl chloride and esters could be synthesized.

The carboxylic acid and ester can very easily be distinguished on the basis of broad intense OH stretching frequency peak at around 2500-3200cm_{-1} . The broad intense OH stretching frequency peak is present in carboxylic acids as they contain OH groups and absent in case of esters .

Likewise esters and alcohols can also be distinguished on the basis IR spectra as alcohols will have broad intense spectra  at around 3200-3600cm_{-1}corresponding to OH stretching frequency whereas esters will not have any such peak. Rather esters would be having a Carbonyl stretching frequency at around 1720-1760

4 0
3 years ago
Does a large or small body cool faster?
Nataly [62]

Answer:

SO… The larger wire looses heat energy faster, however the smaller wire decreases temperature faster. ... Their surface area is much larger in proportion to their body mass and they lose heat through their skin when it is cold and they gain heat through their skin when it is hot much faster than an adult does.

Explanation:

8 0
3 years ago
Вывести формулу оксигенсодержащего соединения, если массовая доля карбона в нем 52,2%, а гидрогена 13%
satela [25.4K]
No depot wey sorrey jauja ]>
6 0
2 years ago
A wheelbarrow can be used to help lift a load, such as a pile of dirt, and then push the load across a distance.
mrs_skeptik [129]

Answer: it consists of two simple machines: a lever and a wheel and axle. Effort is applied to the lever by picking up the handles of the wheelbarrow.

Explanation:

4 0
3 years ago
What is the PTP for 11/4?<br> serving size<br> portion size<br> big mac size
vagabundo [1.1K]
The answer is Big Mac size
4 0
3 years ago
Other questions:
  • If you combine Ammonia and Baking Soda, would you get a neutral solution? Why or why not?
    7·1 answer
  • (1) Write the net ionic equation for the reaction that occurs when equal volumes of 0.233 M aqueous acetylsalicylic acid (aspiri
    14·2 answers
  • What is the correct name for the n3– ion? nitride ion nitrogen ion nitrite ion nitrate ion
    12·2 answers
  • How many experimental trials are needed before a hypothesis can be accepted as true ?
    6·2 answers
  • Consider the following reaction between calcium oxide and carbon dioxide: CaO(s)+CO2(g)→CaCO3(s) A chemist allows 14.4 g of CaO
    9·1 answer
  • (Numerical problems) A car is running with the velocity of 72km/h. What will be it's velocity after 5s if it's acceleration is -
    5·1 answer
  • Nitrogen (N) has an atomic number of 7 and an atomic mass of 14. Which of the following correctly shows the electron arrangement
    11·2 answers
  • The water cycle is the __________________ by which water __________________ through the ____________________ and atmosphere.
    5·1 answer
  • in general, as the temperature increases, the solubility of gases in water ____ and the solubility of most solids in water___
    13·1 answer
  • An intermediate step in the production of nitric acid involves the reaction of ammonia with oxygen gas to form nitrogen monoxide
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!