Tìm số nguyên tử hoặc phân tử: a) 1,5 mol nguyên tử Mg b) 5 mol nguyên tử An c) 1,5 mol phân tử HCL d)2,5 mol phân tử MgCL2

Các câu hỏi liên quan

V. Change the following sentences into Negative (-) and Questions (?) 1. My hobby is making paper dolls. _________________________________________________________ ______________________________________________________________________________________ 2. The paper dolls are always drawn on cardboard and cut out. ______________________________________________________________________________________ ______________________________________________________________________________________ 3. He usually runs every morning. ___________________________________________________________ ______________________________________________________________________________________ 4. She seldom watches TV at weekends_______________________________________________________ ______________________________________________________________________________________ 5. Nam likes doing things outside ___________________________________________________________ ______________________________________________________________________________________ 6. Those girls have over thirty dolls. _________________________________________________________ ______________________________________________________________________________________ 7. The boy often hangs out with his best friend. ________________________________________________ ______________________________________________________________________________________ 8. Mary enjoys making paper dolls __________________________________________________________ ______________________________________________________________________________________ 9. It‟s raining outside _____________________________________________________________________ ______________________________________________________________________________________10. They often ride a horse. ________________________________________________________________