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
MrRissso [65]
3 years ago
5

Which of the following descriptions of the storage requirements for alkali metals is the most accurate? Select the correct answe

r below: A. They must be kept separate from moisture and oxygen. B. They must be kept separate from other alkali metals. C. They must be kept separate from non-alkali metals. D. They must be kept separate from mineral oil.
Chemistry
1 answer:
elena55 [62]3 years ago
7 0

Answer:

A. They must be kept separate from moisture and oxygen

Explanation:

Alkali metals refers to a group of chemical elements in the periodic table. It is the common name given to Group 1 elements (excluding hydrogen). They are generally metallic in nature with physical properties like shining lustre, silvery in appearance etc. Alkali metals include lithium, Pottasium, Sodium, Rubidium etc.

One important chemical property of alkali metals is their high reactivity i.e. they tend to react quickly with other substances. For example, alkali metals react vigorously with water to form hydroxides. They also react with oxygen to form oxides. Due to this highly reactive properties, they are kept or stored away from moisture (water) and oxygen (present in air).

You might be interested in
In dimensional analysis you should always have the same units adjacent to each other (top left to bottom right)
aleksklad [387]

Answer:

False

Explanation:

3 0
3 years ago
If I mix two chemicals in a test tube and notice after a few seconds that there are ice crystals forming on the outside of the t
miss Akunina [59]

Answer:

endothermic reaction

Explanation:

It simply means that you are witnessing<u> an endothermic reaction</u>.

An endothermic reaction is one that absorbs heat energy from its surrounding, thereby leaving the reaction vessel with a lower temperature as compared to before the reaction.

It is as opposed to exothermic reactions which are reactions that give off energy in the form of heat to the surrounding, thereby leaving a reaction vessel warmer than before the reaction.

<em>In this case, the formation of ice crystals outside the test tube means that heat energy has been absorbed by the reaction which leaves the vessel a temperature cold enough to activate the formation of ice. </em>

5 0
2 years ago
Question 10 of 10
Artist 52 [7]

Answer:

d 1 1/2 oz.. of 80-proof liquor

7 0
3 years ago
How many liters of hydrogen (at 0.97atm and 24c) will produce 180 grams of water
slava [35]

H₂ + ½O₂ → H₂O

2g → 18g

So, 18g water needs 2g H₂

So, 1g water needs 2/18g H₂

So, 180g water needs 2/18 x 180g H₂

→ 20 litres of H₂

6 0
2 years ago
Read 2 more answers
1. What is the Charlotte?<br> A. A train<br> B. A car<br> D. An airplane<br> C. A ship
dybincka [34]

Answer:

B is the Charlotte

Explanation:

it is Charlotte because it has 4 wheels

4 0
2 years ago
Other questions:
  • What is the charge of that particle?<br> A). +e <br> B).-2/3 e<br> C).0<br> D).+2/3
    11·1 answer
  • Describe what happened on the Passover day at the time of jesus​
    7·1 answer
  • Which of the following has the greatest heat capacity? a) 1000g of steel b) 1 g of steel c) 1 g of water d) 1000 g of steel
    10·2 answers
  • When fossil fuels are burned, they produce______________, the main greenhouse gas responsible for global warming trends.
    7·2 answers
  • A student placed 11.5 g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then
    12·1 answer
  • Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs, and to ignite solid fuel ro
    14·1 answer
  • Use the drop-down menu to complete the statement. This is why they have similar Atoms of elements in the same group have the sam
    5·1 answer
  • How many milliliters of a 0.275 M NaOH solution is required to react with 0.450 L of CO2 gas
    8·1 answer
  • Please help, it's a task in science and I'm really bad at this subject.
    8·1 answer
  • The dictionary from #2 falls off the table. How much kinetic energy does it have just before it hits the floor?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!