Answer:
Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products.
Explanation:
Answer: A, C, E
Explanation: PLATO. all testable questions.
Answer:
Blue Litmus will change into red if it is added in sodium hydroxide
Explanation:
NA and CL
Na and F
IONIC OCCURS BETWEEN METALS AND NON METALS
The formation of elements heavier than iron and nickel requires the input of energy. Supernova explosions result when the cores of massive stars have exhausted their fuel supplies and burned everything into iron and nickel. The nuclei with mass heavier than nickel are thought to be formed during these explosions.
