Answer:
The atomic number is the number of the elements inside the periodic table and the mass is the weight or a number under the elements.
Explanation:
Correct me if I am wrong
Answer:
1) THE AGE OF THE SAMPLE 2) URANIUM- LEAD DATING
Explanation:
Answer:
Neutral solution, pH of 7.
Explanation:
Red cabbage is a natural indicator which gives red color when an acid is added, green color when a base is added and <u>it gives blue color when a neutral solution is added. </u>
<u>Given that when some red cabbage indicator is added to a solution , it turns blue which means that the solution is a neutral solution. Neutral solution have a pH of 7.</u>
Answer:
to increase their number of species on the Earth and want to go long and long
Based on the energy usage shown by the graph, the best option for the chemical change represented is the combustion of iron.
<h3>What chemical change is shown by the graph?</h3>
The combustion of iron in oxygen leads to the formation of Iron (III) oxide in solid form.
For the combustion of iron to happen, a lot of heat has to be applied to the iron which is why the potential energy of reactants is high. As the reaction progresses, the energy needed reduces as iron (III) oxide is formed.
Find out more on Iron (III) oxide at brainly.com/question/11885810.
