Students were inquired to answer a question at school and to mention what is most important for them to succeed. Of many replies, one that that stood out was practice. Successful people generally are not born successful; they become successful through hard work and dedication. If you want to obtain your goals, keep this in mind! right below some question and answer examples that you will possibly benefit from to improve your knowledge and gain insight that will guide you to preserve your school studies.
Which best describes a compound such as sodium chloride?a pure substance that can be separated into different elements by physical means
a mixture of two common substances that can be separated by chemical means
a mixture of two common elements that can be separated by physical means
a pure substance that can be separated into different elements by chemical means
The second option is the answer. This is a mixture of two common substances that can be separated by chemical means.
NaCL is a compound that was formed through a chemical reaction between sodium and chlorine. In that reaction sodium which is a toxic metal combines with chlorine, a poisonous gas, to form a harmless but totally new compound NaCl or table salt.
Since the sodium ions have a positive charge and the chlorine ions have a negative charge, they are attracted to each other to form an ionic bond.
Sodium can only be separated from Chloride by chemical means e.g. electrolysis.
They could possibly hopefully guide the student deal with the question by using the questions and answer examples. Then can easily make some sharing in a group discussion and also learning with the classmate regarding the topic, so another student also gain some enlightenment and still keeps up the school learning.