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
Rudik [331]
3 years ago
10

The alkali metals all react vigorously with water. Which alkali metal would react to the greatest extent if you have equal amoun

ts of each? A) K B) Li C) Na D) Rb
Physics
1 answer:
Vladimir79 [104]3 years ago
8 0
<h3><u>Answer;</u></h3>

<em>-Rubidium (Rb)</em>

<h3><u>Explanation;</u></h3>
  • <em><u>Alkali metals are group 1 elements, </u></em>they have a valency of 1 and react by loosing electrons to attain a stable configuration.
  • <em><u>The reactivity of alkali metals increases down the group, this is due to the increase in the number of energy levels</u></em> which makes it easier for the valence electrons to be lost.
  • Therefore, in our case,<em><u> rubidium will be the most reactive as it contains more number of energy levels</u></em>, therefore it will loose valence electron more easily compared to the other alkali metals above it in the group.

You might be interested in
The element sulfur is most likely to form covalent bonds with element
atroni [7]
The answer is oxygen.
5 0
3 years ago
Read 2 more answers
Why do we see sedimentary rocks more often than igneous and metamorphic rocks?
shtirl [24]

Answer:

d

Explanation:

3 0
3 years ago
Four discs are spinning at constant angular velocity. Four ideantical balls are dropped on the discs at different distances from
Arlecino [84]

Answer: They will have equal final angular velocity.

Explanation:

Since the discs starts from rest and rotates about a fixed axis, they are subject to a constant net torque. The work done by the torque during the second revolution is as the work done during the first revolution.

The four disc will turn through equal angles in equal times.

8 0
3 years ago
An airplane is heading due north. It experiences a crosswind in the westerly direction. What is the direction of travel for the
Sergeeva-Olga [200]
The direction is something between west and north. That is, a heading between 270 and 360. The exact direction depends on the airplane's airspeed and the wind speed.
6 0
3 years ago
Read 2 more answers
A typical person's eye is 2.5 cm in diameter and has a near point (the closest an object can be and still be seen in focus) of 2
Scrat [10]

Answer:

The minimum effective focal length of the focusing mechanism (lens plus cornea) of the typical eye is 2.27 cm.

Explanation:

The diameter of person's eye is 2.5 cm. The close point or the near point of the eye is 25 cm and the far point is infinity. We need to determine the minimum effective focal length of the focusing mechanism (lens plus cornea) of the typical eye. Let f is the minimum effective focal length. It can be calculated using lens formula as :

\dfrac{1}{f}=\dfrac{1}{25}+\dfrac{1}{2.5}

f = 2.27 cm

So, the minimum effective focal length of the focusing mechanism (lens plus cornea) of the typical eye is 2.27 cm and it is at the nearest point. Hence, this is the required solution.

6 0
3 years ago
Other questions:
  • The speedometer of a car moving to the east reads 100 km/h. It
    8·2 answers
  • What is unit of pressure
    13·2 answers
  • The moon orbits Earth approximately once a month. <br><br> True<br><br> False
    8·1 answer
  • A certain type of D-cell battery that costs $0.50 is capable of producing 1.3 V and a current of 0.3 A for a period of 75 hours.
    9·1 answer
  • If the diameter of the black marble is 3.0 cm, and by using the formula for volume, what is a good approximation of its volume?
    6·1 answer
  • HELLPPPP. The metalloid that has three valence electrons is ___________?​
    12·1 answer
  • A student jogs for a mile when their heartbeat starts racing and the student feels too fatigued to keep jogging. The student sto
    15·2 answers
  • If the efficiency and mechanical advantage of a certain machine are given as 65 % and 3 respectively.What is the velocity ratio
    14·1 answer
  • An object falls from a height of 12m. The object's potential energy at the top is 50J. Where is the potential energy of the obje
    15·1 answer
  • Both physical and chemical changes are accompanied by a change in the total energy of the system, which is divided into two broa
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!