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
Alexeev081 [22]
3 years ago
8

Which two elements have similar characteristics- calcium hydrogen barium silicon krypton

Physics
1 answer:
Yakvenalex [24]3 years ago
8 0

Answer:

Calcium and barium

Explanation:

Krypton is a noble gas it do not take part in any reaction its physical and chemical property does not resembles to other atoms.

Hydrogen is the reducing gas its physical and chemical property does not resembles to other atoms.

Silicon is a semiconductor its physical and chemical property does not resembles to other atoms.

Calcium and Barium are placed in the same group 2 in the periodic table . Both are alkaline earth metal.

As both element are placed in the same group they have same physical and chemical properties.

Example:

  • Electro-negativity of Calcium and barium are approximately same.
  • Both have same oxidation states +2,  both are strong basic oxide.
  • Both are present in nature in solid state.
  • Both are s- block element.

Thus, we can say Barium and Calcium have similar properties.

You might be interested in
Sadi Carnot came up with a hypothetical heat engine that had the maximum possible efficiency. What discovery did Carnot make tha
otez555 [7]
The discovery which Carnot made was that THE DIFFERENCE IN THE TEMPERATURES BETWEEN THE HOT AND THE COLD RESERVOIRS DETERMINE HOW WELL A HEAT ENGINE WOULD WORK.
Sadi Carnot was a French engineer, He proposed a theoretical thermodynamic cycle in 1824. In his cycle, Said hold that the efficiency of a heat engine depends on the temperature difference between its hot reservoir and cold reservoir.
3 0
3 years ago
Can a object have have zero velocity and nonzero acceleration?
vladimir1956 [14]

Answer:

yes

Explanation:

3 0
3 years ago
two large boxes sit side by side on a sidewalk. the box on the left has a mass of 80kg and the box on the right has a mass of 50
garri49 [273]

     The force that prevents motion when the surfaces of two objects come into contact is known as friction. Friction decreases a machine's mechanical advantage, or, to put it another way, reduces the output to input ratio.

<h3>How can I figure out the frictional force?</h3>

        The resistive force of friction (Fr) divided by the normal or perpendicular force (N) pushing the objects together yields the coefficient of friction (fr), which is a numerical value.

The formula fr = Fr/N serves as a representation of it.

Therefore, 100N of force is needed to move an item with a mass of 50 kg.

It will accelerate by 10 m/s2.

If a substance's mass does not change over time, friction cannot affect it. Instead, friction can be affected in a variety of ways by an object's mass.

To  Learn more About Friction, Refer:

brainly.com/question/24338873

#SPJ13

8 0
1 year ago
A uniform disk, a uniform hoop, and a uniform solid sphere are released at the same time at the top of an inclined ramp. They al
pav-90 [236]

Answer:

sphere, disk, hoop

Explanation:

See attached file

8 0
3 years ago
One watt is equal to which of these values?
dusya [7]
1 W = 1 J/s 
Watt<span> is the unit of measure for power .
</span><span>
</span>Joule is the unit of measure for the energy and the second is the unit of measure for time.


3 0
3 years ago
Read 2 more answers
Other questions:
  • Friction removes energy from objects in motion. Which statement best describes how this works?
    13·1 answer
  • If you lift two loads up one story, how much work do you do compared to lifting just one load up one story?
    14·1 answer
  • Which graph shows the relationship between temperature, X, and kinetic energy, Y?
    10·2 answers
  • A racecar experiences a centripetal acceleration of 36.0 m/s2 as it travels at a constant speed of 27.0 m/s along a circular arc
    8·2 answers
  • A decrease in the magnitude of velocity is called
    11·1 answer
  • Which artist of the northern European Renaissance, shown in this self-portrait, was also a block printer and engraver?
    15·2 answers
  • A positive rod is touched to a neutral sphere. There is a bar with positively charged particles attached to a ball with positive
    15·1 answer
  • How is a magnetic field generated?
    10·2 answers
  • A 50Kg girl jumps off a 5-meter-high diving board. What is her kinetic energy right before she hits the water?
    8·1 answer
  • What else is produced when sodium carbonate decomposes?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!