Answer:
the answer is chemical element because when a symbol consists of two letters the first letter is always capitalized
The class can break or if you put it in cold water it can cool down down fast.
Answer:
A) Salt water is an example.
C) Components are present in an unfixed ratio
E) Each component retains its own properties
F) Trail mix is an example
Explanation:
Hello! These are the correct answers! (I took the K12 test!)
Have a blessed day!
We will use this formula:
M1C1ΔT1 = M2C2ΔT2
when M1 mass of sample 1 = 31 g
C1 for water = 4.184
and ΔT1 = (Tf- 290)
and M2 of sample 2 = 47 g
C2 for water = 4.184
and ΔT2 = (340 - Tf)
so by substitution, we can get Tf (the final temperature):
31 g * 4.184 * ( Tf - 290 k ) = 47g * 4.184 * (340 - Tf)
∴Tf ( the final temperature) = 320 K
I am sure it's the first one.