Answer:
hydroxide ion
Explanation:
because base produce hydroxide ion when dissolved in water
Answer:
See explanation
Explanation:
1) Physical change is usually reversible, while chemical change isn't
2) Chemical change involves the change of chemical composition of matter while physical change doesn't
the fire spreading is what represents the form of heat transferring from one atom to another within an object and direct contact
Answer:
Cl
Explanation:
cl has mass number 35 and its atomic number is 17 so number of proton =atomic number 17 and number of neutron is =mass number -number of proton =35-17 =18
