Answer:
Modern periodic table has eighteen (18) vertical columns. These are called groups
Since SeO2 dissolves in water to produce selenium acid, it is regarded as an acidic oxide.
The chemical compound having the formula SeO2 is known as selenium dioxide. One of the forms of selenium that is most frequently seen is this colorless solid. 350 °C (662 °F; 623 K). The chemical compound having the formula SeO2 is known as selenium dioxide. One of the forms of selenium that is most frequently seen is this colorless solid. It serves as a catalyst, reagent, oxidizing agent, and antioxidant in lubricating oils. OSHA regulates selenium oxide; thus, it is listed on the Hazardous Substances List. It can be produced chemically by dehydrating selenous acid or chemically by burning selenium in oxygen, nitrogen dioxide, or hydrogen peroxide.
Learn more about Selenium dioxide here-
brainly.com/question/14288352
#SPJ4
Answer:
2500 J
Explanation:
Let's solve the problem using the first law of thermodynamics, which states that
U_f - U_i = Q-W
where
Uf is the final internal energy
Ui is the initial internal energy
Q is the heat absorbed by the system
W is the work done by the system
In this problem, we have:
Ui = 2000 J is the initial internal energy
Q = 1000 J is the heat absorbed by the system
W = 500 J is the work done by the piston
If we substitute numbers into the equation, we find:
U_f =U_i + Q-W=2000 J+1000 J-500 J=2500 J
Answer:
A. task and social cohesion.
Explanation:
Cohesion comprises of both task cohesion and social cohesion.
Task Cohesion generally refers to the degree to which members of a work group come together to achieve common goals, example, to win a game or challenge.
Social Cohesion: reflects the degree to which members of a team like each other and interact accordingly.