1. …… + NaOH à NaNO3 + ……. 2. KOH + …….. à…… + K2SO4

3. Fe(OH)3 …… + ……...

4. Fe(OH)2 + …. à FeCl2 + …..

5. ….. + Ca(OH)2à Ca(HCO3)2

6. Ca(OH)2 + ….. à CaCO3+ ….

7. Zn(OH)2 …. + ……

8. Mg(OH)2 + ….. à MgSO4 +

9. Ba(OH)2 + ….. à Ba(HSO3)2

10. Ca(OH)2+ …. à Ca3(PO4)2 + ….

11. Zn(OH)2+ ….. à H2O +…..

12. …. + … à AgCl + Ba(NO3)2

13…………..+ H2SO4à H2O + ….

14. HCl + …. à CuCl2 + …..
BT2.Cho các chất có CTHH sau: H2SO4, CuO, HNO3 , Mg(OH)2, SO3, KOH, H3PO4, N2O5, NaOH, SO2, Ba(OH)2, Ca(HCO3)2 .

a) Chất nào phản ứng với dung dịch Ca(OH)2 ?

b) Chất nào phản ứng với Mg(OH)2 ?

à Hãy viết PTHH.

BT3. Cho các chất sau: Na2CO3, CaO, NaCl, H2O. Từ các chất trên, hãy viết các PTHH điều chế NaOH.

BT4. a) Có 3 lọ không nhãn, mỗi lọ đựng các chất rắn sau: Cu(OH)2, Ba(OH)2, Na2CO3. Hãy chọn 1 thuốc thử có thể nhận biết cả 3 chất rắn trên. Viết PTHH.

b). Nêu PPHH nhận biết 3 dd sau: NaOH, Ca(OH)2 , HCl

BT5.Từ các chất sau đây:K2O, BaO, H2O, MgSO4, AlCl3.

Hãy viết các PT điều chế

a/ Bazơ tan b/ Bazơ không tan.

BT6. Viết PTHH thực hiện chuyển hóa sau:

a/ Na2O NaOH NaHCO3 Na2SO4 NaCl NaOH

(6) Na2SO3SO2 KHSO3

b/ CaO Ca(OH)2 CaCO3 CO2 K2CO3K2SO4

d/ Cu(OH)2CuOCuCuSO4CuCl2Cu(OH)2Cu(NO3 )2

BT7. Cho 8,96lít khí cacbon đioxit (đktc)vào dd nước vôi trong 0,04M có dư ,thì thu được một lượng kết tủa A.

What type of reaction fuels the processes seen here?

1. an experiment in your science class lists the materials needed for the lab. it is your job, as a lab partner, to measure out 25 ml of distilled water and 2.5 grams of magnesium. what lab measuring tools would you choose to measure each substance and how would you use each tool to get the correct amounts? be sure to describe the process you would follow step-by-step. (5 points) 2.which of the following is an si base unit for measuring mass? (2 points) ampere gram meter pound 3.which of the following is an si base unit for time? (2 points) decades hours minutes seconds 4.which of the following tools should a scientist use to measure an object in milligrams? (2 points) graduated cylinder pan balance tape measure thermometer 4.which of the following tools should a scientist use to measure an object in milligrams? (2 points) graduated cylinder pan balance tape measure thermometer. 5.a pencil beside a metric ruler. the ruler is scaled from 1 centimeter to 10 centimeters, with markings for millimeters between each number. one end of the pencil is beside the 0 on the ruler, and the pencil point is beside the 5. which of the following measurements is accurate but not precise? (2 points) 5 mm 5 cm 50 mm 50 cm 6. which of the following prefixes represents the largest value? (2 points) giga hector kilo milli 7. which of the following types of graphs is best for plotting the percentages of a whole value in a data set? (2 points) bar graph circle graph histogram line graph

Consider the following unbalanced equation for the combustion of hexane: αc6h14(g)+βo2(g)→γco2(g)+δh2o(g) part a balance the equation. give your answer as an ordered set of numbers α, β, γ, use the least possible integers for the coefficients. α α , β, γ, δ = nothing request answer part b determine how many moles of o2 are required to react completely with 5.6 moles c6h14. express your answer using two significant figures. n n = nothing mol request answer provide feedback