Answer:
The first part of his theory states that all matter is made of atoms, which are indivisible. The second part of the theory says all atoms of a given element are identical in mass and properties. The third part says compounds are combinations of two or more different types of atoms.
Explanation:
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There are many types of acid or bases. Based on the Arrhenius definition,
* An Arrhenius acid donates H⁺ in a solution (like HCl, HNO₃, H₂SO₄)* An Arrhenius base yield OH⁻ in a solution (like NaOH, KOH, Mg(OH)₂)
Other types of acids and bases are the Lewis acids/bases and the Bronsted-Lowry acids/bases.
A. Petrified fossil should be the answer
Answer:
The answers to your questions are given below.
Explanation:
Data obtained from the question include:
Mass (M) = 420.0 g
Temperature change (ΔT) = 43.8 °C
Specific heat capacity (C) = 3.52 J/g °C
Heat needed (Q) =...?
The heat needed for the temperature change can be obtained by using the following formula:
Q = MCΔT
Where:
Q is the heat needed measured in joule (J).
M is the mass of substance measured in grams (g)
C is the specific heat capacity of the substance with unit J/g °C.
ΔT is the temperature change measured in degree celsius (°C).
Thus, we can calculate the heat needed to change the temperature as follow:
Q = MCΔT
Q = 420 x 3.52 x 43.8
Q = 64753.92 J
Therefore, the heat needed to cause the temperature change is 64753.92 J