Answer:
D. 400 cal
Explanation:
Spec heat of water 1 cal/gm-C
1 cal / gm-C * 100 gm * ( 20-16 C) = 400 cal
One thing to remember is homo=same/pure and hetero=different
so heterogeneous mixture is would be salad, vegetable soup, trail mix and brass.
this is because salad, vegetable soup, trail mix, and brass have a lot components and they’re not pure.
Hopefully i could help!!
Answer:
The name of the cation
Explanation:
The name of a binary ionic compound is
name_of_cation name_of_anion
Thus, the first part of the name is the name of the cation.
For example, the first part of the name of Na⁺Cl⁻ is sodium.
Answer:
The blue star is the hottest star.
Explanation:
Red stars are cooler than the sun, with surface temperatures of 3,500 K for a bright red star and 2,500 K for a dark red star. The hottest stars are blue, with their surface temperatures falling anywhere between 10,000 K and 50,000 K
If a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change to reestablish equilibrium. If a chemical reaction is at equilibrium and experiences a change in pressure, temperature, or concentration of products or reactants, the equilibrium shifts in the opposite direction to offset the change. This page covers changes to the position of equilibrium due to such changes and discusses briefly why catalysts have no effect on the equilibrium position.
For example, if the system is changed in a way that increases the concentration of one of the reacting species, it must favor the reaction in which that species is consumed. In other words, if there is an increase in products, the reaction quotient, Qc, is increased, making it greater than the equilibrium constant, Kc.
