Answer this question!
1. An object with 400cm3 volume is weighed and it found that it has 3.16 kg. It mass density is…
2. Isolator can be made of …
3. 72 km/hour is equal to…
4. My body has length 165 cm. the word representing a quantity is from the statement is…
5. The SI unit for:
a. Mass c. Length
b. Electric current d. Time
6. Liquid surface in a container has convex meniscus when…
7. Insect are able to stand and walk on the water surface due to…
8. The characteristic of particles are…
9. If at Celsius scale refers to number 400C, at Reamur and Fahrenheit scale refer to…
10. The characteristic of alkali is…
11. If pure water is measured with pH meter, it has pH as much as…
12. Blue litmus can change color into red if dipped in a…
13. Explain the different between compounds and mixture!
14. Write the symbol of the following elements :
a. Gold c. Iron
b. Mercury d. Helium
15. Calculate the number of each atom in the compound which has chemical formula of CuSO4.5H2O!
ayo smangad.....
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