绗?/p>
1
椤?/p>
鍏?/p>
9
椤?/p>
2019
绉嬩節骞寸骇涓婂唽鍖栧銆婄浜斿崟鍏?/p>
璇鹃
3
鍒╃敤鍖栧鏂圭▼寮忕殑绠�鍗曡绠椼�嬪熀纭�璁粌
涓�銆佸崟閫夐
1
锛?/p>
锛?/p>
2019路
杈藉畞涓�冩ā鎷燂級
鍦ㄥ弽搴?/p>
2
3
4
3Fe+2O
Fe
O
鐐圭噧
锛?/p>
Fe
锛?/p>
O
2
锛?/p>
Fe
3
O
4
涓夌鐗╄川鐨勮川
閲忔瘮涓猴紙
锛?/p>
A
锛?/p>
3
锛?/p>
2
锛?/p>
1
B
锛?/p>
56
锛?/p>
16
锛?/p>
232
C
锛?/p>
56
锛?/p>
32
锛?/p>
232
D
锛?/p>
168
锛?/p>
64
锛?/p>
232
2
锛庡湪鍙嶅簲
2X+Y===2Z
涓紝宸茬煡
Y
鐨勭浉瀵瑰垎瀛愯川閲忎负
32
锛?/p>
Z
鐨勭浉瀵瑰垎瀛愯川閲忎负
80
锛屽垯
X
鐨勭浉瀵瑰垎瀛愯川閲忎负锛?/p>
锛?/p>
A
锛?/p>
24
B
锛?/p>
48
C
锛?/p>
128
D
锛?/p>
64
3
锛庣偣鐕?/p>
H
2
銆?/p>
O
2
鍜?/p>
N
2
鐨勬贩鍚堟皵浣?/p>
20g
锛屽畬鍏ㄥ弽搴斿悗鐢熸垚
18gH
2
O
锛屽垯鍓╀綑姘斾綋涓嶅彲鑳芥槸
锛?/p>
锛?/p>
A
锛?/p>
O
2
鍜?/p>
N
2
鐨勬贩鍚堟皵浣?/p>
B
锛?/p>
H
2
鍜?/p>
N
2
鐨勬贩鍚堟皵浣?/p>
C
锛?/p>
2gN
2
D
锛?/p>
H
2
銆?/p>
O
2
銆?/p>
N
2
鐨勬贩鍚堟皵浣?/p>
4
锛庣幇鏈夋哀姘斿拰姘㈡皵鐨勬贩鍚堟皵浣?/p>
10g
锛屽湪瀵嗛棴瀹瑰櫒涓偣鐕冨弽搴斿悗锛屽墿浣欑殑姘斾綋涓?/p>
1g
锛屽垯
鍘熸贩鍚堟皵浣撶殑缁勬垚涓猴紙
锛?/p>
A
锛?/p>
4g
2
H
鍜?/p>
6g
2
O
B
锛?/p>
5g
2
H
鍜?/p>
5g
2
O
C
锛?/p>
2g
2
H
鍜?/p>
8g
2
O
D
锛?/p>
3g
2
H
鍜?/p>
7g
2
O
5
锛?/p>
10 g
楂橀敯閰搁捑鍔犵儹涓�娈垫椂闂村悗锛屽喎鍗寸О鍥轰綋娈嬬暀鐗╄川鐨勮川閲忎负
9.2 g
銆傚弬鍔犲弽搴旂殑楂?/p>
閿伴吀閽剧殑璐ㄩ噺涓?/p>
(
)
A
锛?/p>
0.8 g
B
锛?/p>
10 g
C
锛?/p>
7.9 g
D
锛?/p>
8.5 g
6
锛?/p>
锛?/p>
2019路
璐垫腐锛?/p>
鍦?/p>
2A+3B=C+2D
鍙嶅簲涓紝
36gA
涓?/p>
56gB
鎭板ソ瀹屽叏鍙嶅簲鐢熸垚
28gC
鍜屼竴
瀹氶噺鐨?/p>
D
锛岃嫢
C
鐨勭浉瀵瑰垎瀛愯川閲忎负
14
锛屽垯
C
鍜?/p>
D
鐨勭浉瀵瑰垎瀛愯川閲忎箣姣斾负
(
)
A
锛?/p>
7
锛?/p>
1
B
锛?/p>
7
锛?/p>
8
C
锛?/p>
7
锛?/p>
16
D
锛?/p>
7
锛?/p>
32
7
锛庡湪鍙嶅簲
A+3B=2C+3D
涓紝宸茬煡
2.3
g A
璺?/p>
2.4
g B
鎭板ソ瀹屽叏鍙嶅簲锛岀敓鎴?/p>
4.4
g C
锛?/p>
鍙堢煡
D
鐨勭浉瀵瑰垎瀛愯川閲忎负
18
锛屽垯
A
鐨勭浉瀵瑰垎瀛愯川閲忎负锛?/p>
锛?/p>
A
锛?/p>
23
B
锛?/p>
46
C
锛?/p>
48
D
锛?/p>
92
8
锛庡崟璐?/p>
M
涓庢哀姘斿弽搴旂殑鍖栧鏂圭▼寮忎负
2
3
2
4M+3O
=2M
O
锛屽弬鍔犲弽搴旂殑
M
涓庣敓鎴愮殑
2
3
M
O
璐ㄩ噺鍏崇郴濡傚浘鎵�绀猴紝鍒?/p>
2
3
M
O
鐨勭浉瀵瑰垎瀛愯川閲忎负锛?/p>
锛?/p>