Answer:
100Jkg/°C
Explanation:
Given parameters:
Mass of metal = 2kg
Amount of heat energy = 1600J
Initial temperature = 5°C
Final temperature = 13°C
Unknown:
Specific heat capacity of the metal = ?
Solution:
Specific heat capacity of a body is the amount of heat needed to raise the temperature of unit mass of a body by 1°C.
H = m x C x (T₂ - T₁ )
H is the amount of heat
m is the mass
C is the unknown specific heat capacity
T is the temperature
Insert the parameters and solve;
1600 = 2 x C x (13 - 5)
1600 = 16C
C = 100Jkg/°C
Answer: A the kinetic energy is transformed into heat
Explanation:
Answer:
2 chlorine atoms.
Explanation:
H₂ + Cl₂ → 2HCl
The Law of Conservation of Mass states that matter can neither be created nor destroyed in a chemical reaction.
If 2 molecules of Hydrogen and 2 molecules of Chlorine is present in the reactants, the same no. of atoms should also be present in the product.
∴ the no. of chlorine atoms in the product is 2.
This question is incomplete. Here is the complete question:
What is the major difference between an attraction and entertainment?
a. An attraction offers retail services.
b. An attraction always requires a paid admission.
c. An attraction can be part of a travel package.
d. An attraction is offered year-round.
Answer:
The correct answer is option c. An attraction can be part of a travel package.
Explanation:
When we talk about entertainment, we are referring to a type of amusement, or the action of providing an activity for this purpose.
While an attraction is something that usually draws attention to somewhere, or something. For example, if we hired a travel package, it would surely include an attraction of the place we are going to visit, and that is the major difference between both definitions.
Answer:a biological community of interacting organisms and their physical environment.
Explanation: