Tính số mol phân tử CO2 cần lấy để có 1,5.10^23 phân tử CO2 có bao nhiêu nguyên tử chứa trong 6,3(g) HNO3

Cho M(g )Al phản ứng vừa đủ với 600 ml axit HCL phản ứng kết thúc thu được 6,7 lít khí H2 (ở điều kiện tiêu chuẩn)

 a Tính m

 b Tính nồng độ mol của dung dịch axit HCl đã dùng

C tính khối lượng muối thu được

viết bài văn nêu cảm nhận về món bánh ít lá gai ngữ văn 7

SOS

SOS

SOS

tính bắng cách thuận tiện nhất:

0,2+3,6+0,8

12x3,7-12x2,7

6,75x4x25

tìm 2 số a,b biết :ưcln (a,b)=9 và a+b =72

${17}^{17}+\frac{1}{{17}^8}+5 và b={17}^8+\frac{1}{{17}^9}+5$

cần gấp giúp vói

Exercise 5: Complete the sentences using the verb in the brackets.

Question 1: I cannot get used to_____________ (HEAR) loud noise. It is so annoying to listen to my neighbour singing and partying all the time.

Question 2: In the past, I used to _____________ (EAT) a lot of fast food, but now that I prefer fresh vegetables and fruits.

Question 3: I am trying _____________ (BECOME) a teacher in the future.

Question 4: He wasn't used to  __________ (WALK) so much and his legs hurt after the hike.

Question 5: Our Chemistry teacher forces us _____________ (DO) a lot of homework.

Question 6: He is used to  ___________ (LIVE) alone in that huge apartment.

Question 7: I'm a teacher so I'm used to ____________ (SPEAK) in public.

Question 8: She finally decided ____________ (BUY) a dress for her mom.

Question 9: The thief admitted ______________ (STEAL) the picture.

Question 10: When we were children, we used to _____________ (GO) swimming very often.

Question 11: I’m not in a hurry so I don’t mind _____________ (WAIT) for a while.

Question 12: The store refused __________ (GIVE) back the money to me.

Question 13: I don’t know what ___________ (DO) now. I’m so stressed.

Question 14: I will persuade my mom _____________ (LET) me go to the music festival with my friends.

Question 15: I really cannot expect Jack ___________ (COME) on time. It's so late now.

(-5).(x-5)=0