Answer: chemical
Explanation: whenever heat is applied, it indicates a chemical change
The reaction is a displacement reaction. Iron is more reactive than copper. Hence, it displaces copper,forming iron II sulfate and copper metal.
This reaction is an exothermic reaction, hence it releases energy. The colour change indicates that iron has displaced copper.
Answer:
The answer to your question is:
Explanation:
e) 9.10 x 10³ + 2.2 x 10⁶ = 2.2091 x 10⁶
f) 1113.0 - 14.6 x 10² = -347 = -3.47 x 10²
g) 6.18 x 10⁻⁴⁵ + 4.72 x 10⁻⁴⁴ = 5.338 x 10⁻⁴⁴
h) 4.25 x 10⁻³ - 1.6 x 10⁻² = -0.01175 = -1.175 x 10 ⁻²
5.- Calculate ...
a) 2.63 x 10⁻⁴
b) 2.26 x 10¹³
c) 1.97 x 10²
d) 1.65 x 10⁻²³
e) 2.5 x 10⁻⁸³
f) 1.61 x 10¹⁴
g) 2 x 10⁷⁹
h) 2.37 x 10⁻⁷
Answer:
Explanation:
cell is the basic smallest,functional and structural unit of an organism
