1491: New Revelations of the Americas Before Columbus

1491: New Revelations of the Americas Before Columbus

Kimia Kalau gak bisa mengerti pertanyaan dalam teks ini, bisa melihat gambar yang saya kasih di bawah.

1. Dalam wadah tertutup, 6 gram logam magnesium (Mg) tepat bereaksi dengan sejumlah oksigen (O2)
menghasilkan magnesium oksida (MgO) sebanyak 7,2 gram. Berapakah massa oksigen yang
dibutuhkan?

2. Besi (Fe) dapat bereaksi dengan oksigen (O) membentuk besi(II) oksida (FeO) dengan perbandingan
massa Fe : 0 = 7 : 2. Jika direaksikan 25 gram besi dengan 6 gram oksigen, tentukan
a)
Berapa gram zat yang terbentuk?
b) Berapa gram zat sisa yang tidak bereaksi?

3.
Unsur A dan B membentuk dua macam senyawa. Massa A pada kedua senyawa itu berturut-turut
40% dan 20%
a.
Tunjukkan apakah hukum Dalton berlaku pada kedua senyawa ini ?
b. Jika senyawa I memiliki rumus AsB6, bagaimana rumus kimia senyawa Il?

4.
Setarakan persamaan reaksi berikut ini :
a.
KCIO3(aq)
+
S(s)
KCI(aq)
S02(g)
b.
Mg(NO3)2(aq)
+
NazPOA(aq)
Mg3(PO4)2(5) +
NaNO3(aq)

5.
Tuliskan persamaan reaksi (lengkap beserta wujudnya) dan setarakan :
Direaksikan gas karbon dioksida (CO2) dengan larutan kalium hidroksida (KOH) membentuk
larutan kalium karbonat (K2CO3) dan pelarut murni air.

6.
Dari suatu percobaan, pembakaran 1 liter hidrokarbon (C„Hy) dengan 3,5 liter gas oksigen (O2) akan
menghasilkan 2 liter gas karbon dioksida (CO2) dan 3 liter air (H›O). Tentukan rumus kimia
hidrokarbon (CxHy) tersebut!

B. inggris Please, read this text carefully and then answer these question!!!

My First Time in Yogyakarta

(Paragraph 1) My family and I went to my grandmother’s house in Yogyakarta last month. It was my first trip to this city. We went there two days after my sister’s gradution ceremony in Semarang.We arrived at Yogyakarta at night. We spent a week staying in my grandmother’s house which is 5 minutes away by foot to Malioboro street.

(Paragraph 2) In the first morning, we were still too tired after a long trip from Semarang to Yogyakarta. So we decided to stay at home to recharge our energy. I walk around the neighborhood with my sister just to experience how it is like to be in Yogyakarta.There were too many house, I think, which made the space between a house and the other was so small, even the road was also small that only bicycle and motorcycle can go through.

(Paragraph 3) On the second day, all of us went to Malioboro street. We saw so many merchant with various of product which they claim to be a traditional product of Yogyakarta. I bought some wooden figurine and T-shirt with the word “Yogyakarta” printed on it, while my sister bought some leather handbag. My mom and dad were busy choosing some merchandise to be brought home when we go back.

(Paragraph 4) On the third day, we went to Taman Sari and Keraton Ngayogyakarta Hadiningrat to see some historical building in Yogyakarta. We took a lot of picture there.We also took some picture of the building so we can check it again at home. We found some place providing Yogya traditional food around the building and we jumped in right away.We spent the rest of our week in Yogyakarta by visiting some Shopping Malls such as Jogja City Mall, Malioboro Mall, Hartono Mall and Ambarrukmo Plaza.

(Paragraph 5) We realized that Yogyakarta turned out to be very warm during the day, that was the reason why we decided to spend more time in air conditioned building like this.

Questions :

1. What is the title of the text?
2. Which one is the orientation of recount text?
3. Which one is the event of recount text?
4. Which one is the reorientation of recount text?
5. What is the purpose of recount text?