Chemistry, 02.02.2021 23:20 yabfegi9669
Item 4 How many protons are in an element with an atomic number of 8 and a mass number of 18? 3 8 10 18
Answers: 3
Chemistry, 21.06.2019 20:00
When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force
Answers: 1
Chemistry, 21.06.2019 20:50
Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread
Answers: 2
Chemistry, 22.06.2019 10:40
Asolid that forms and separates from a liquid mixture is called
Answers: 2
Item 4 How many protons are in an element with an atomic number of 8 and a mass number of 18? 3 8 10...
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