Cứuuuuuu e vs ạ,,,,,,,,,,,,,,,,😢

cho 16,6g hh al fe vào dd hcl dư thu đc 11,2l h2 tính kl moi kl trong hh

Giúp em với ạ 😭 Hiện tại e chỉ còn ngần này điểm, sẽ trả bù

Turn the sentences into reported speech

các chất dinh dưỡng trong thức ăn vật nuôi có vai trò như thế nào đến với cơ thể vật nuôi ? giúp

phân tích đa thức thành nhân tử: 3a ²b(m-x)- 6ab ²(x-m)

Mn giải giúp e vs ạ E cảm ơn nhiều ạ

Mn giúp e với sáng mai e phải nộp r

a) $\frac{3}{8}$ + $\frac{5}{8}$x = 75% b) (x + $\frac{7}{2}$)$^{2}$ - $\frac{1}{5}$ = $\frac{1}{20}$

73. My home hasn’t installed a solar water heater. If/ my home/ install/ a solar water heater/ we/ save a lot of energy. 74. Not all households in Viet Nam turn off lights during the Earth Hour. If/ all households/ Viet Nam/ turn off lights/ the Earth Hour/ we/ save enough electricity/ develop our rural areas. 75. Some students in our school still throw litter on the school ground. If/ students/ our school/ not throw litter/ the school ground/ our campus/ look/ greener/ fresher. 76. People use aluminum cans instead of glass bottles. If/ people/ use/ glass bottles/ they/ use/ again and again. 77. Our school ground is large but we don’t have a wind turbine. If/ we/ install/ a wind turbine/ our school/ become/ more eco-friendly. 78. People don’t use organic fertilizers. If/ people/ use/ organic fertilizers/ they/ prevent/ land pollution. 79. A large number of people ride their motorbikes to work. If/ people/ ride/ bikes/ they/ keep/ air/ less polluted. 80. That factory doesn’t have a wastewater treatment system. If/ that factory/ have/ wastewater treatment system/ river/ not become/ so polluted. (Em đag cần gấp )