H2SO4 có thể hòa tan với chất nào viết phương trình phản ứng nếu có và ghi rõ điều kiện phản ứng Co2 MgO Cu SiO2 So2 FeOH3 BaCo3 Ca3(Co4) Fe Mg Monaco các bạn giúp ạ Thanks <3

Các câu hỏi liên quan

Ai giúp em với ạ có 10 câu trắc nghiệm thôi à ai giúp em nha🌻 Cảm ơn mng nhiều lắm ạ!!! Read the text and answer the questions from 1 to 5. FESTIVAL Festivals and feasts are special times where people together and celebrate. Most of these celebrations are to do with religion. Special events in a country’s history or the changing seasons are also celebrated. Singing and exchanging gifts ate popular rituals and often form part of an annual festival. Pictures and objects also have a special meaning at festival time. For example, golden fish become symbols of wealth at Lunar New Year. Different cultures share the same symbol in their festival. Christians light candles at Christmas and Hindus do the same for Diwali. People dressing up in costumes and sharing together are popular festive in many parts of the world. Thanksgiving celebrated in November. It is a holiday people get together to share the traditional dinner oi turkey and pumpkin pie. Thanksgiving started in the autumn of 1621. A group of European settlers in North America invited the Indians to join them for their harvest in a thanksgiving feast because the Indians had taught them how to grow crops. Question 1. What are festivals? A. Time for people to celebrate something. B. Time for people to work. C. Time for people to study. D. Time for people to make a change. Question 2. What have special meaning at festival time? A. Picture B. Objects C. Both A and B D. None of them Question 3. What do Christian do at Christmas? A. They light candles. B. They dress up in costume and share meals. C. None of them D. Both A and B Question 4. When is Thanksgiving celebrated? A. November B January C. December D. All of them Question 5. What do people have for Thanksgiving dinner? A. turkey B. pumpkin pie C. crops D. A and B Read the text and choose the correct answers from 6 to 10. FESTIVALS AROUND THE WORLD Every year in July, people in Ubon Ritchathani Thailand celebrate the Candle Festival. Tourists from all over the country come to Ubon to look at huge wax candles that are paraded through the streets. There are music, dancers, a huge market and even a competition for artists to design the best candle. In other countries, they have different festivals. Some are really strange. One of the weirdest festivals in the world is Day Of the Dead. Day of the Dead is celebrated on November 1st in Mexico, Ecuador, Guatemala and other parts of CentraI and South America. Families gather to pray to dead relatives and ask to return for just one night. People decorate their homes and gravesites with food, candle skulls and flowers to welcome uhe dead back to the earth. People dress up as, skeletons and the streets. Pan de los muertos (bread of the dead) is baked in the shape of skulls and crossbones, and a toy is hidden inside each load. The person who bites into the toy is said to have good luck. Day Of the Dead sounds like a scary event, but it’s a happy time to celebrate and remember the lives of dead family members. Question 6. Day of the Dead is celebrated in July. True False Question 7. Families ask dead people to come back for one night. True False Question 8. Pandel Muertos is a type of bread. True False Question 9. It is unlucky to bite the toy in Pan de los Muertos True False Question 10. Day of the Dead is celebrated in Africa. True False