7 grade science
_________ chemical which absorbs oxygen in air.
_________ chemical which absorbs oxygen in air.
1 Answer
Askiitians Tutor Team
The chemical that absorbs oxygen from the air is sodium (specifically, sodium metal). When sodium metal is exposed to oxygen in the air, it reacts with the oxygen to form sodium oxide (Na2O). This reaction can be written as:
4Na + O2 → 2Na2O
Thus, sodium metal "absorbs" oxygen in the sense that it reacts with it to form a compound, removing oxygen from the surrounding air.
Other Related Questions on 7 grade science
During photosynthesis, the oxygen in glucose is from?
- (a) Water
- (b) Carbon dioxide
- (c) Both from CO₂ and water
- (d) Oxygen in air
During photosynthesis, the oxygen in glucose is from?
- (a) Water
- (b) Carbon dioxide
- (c) Both from CO₂ and water
- (d) Oxygen in air
Grade 77 grade science
Last Activity: 9 Months ago
Consider the following statements.
- A. Almost all animals are either herbivores or carnivores.
- B. Human beings, rats, crows, etc. are omnivorous.
- C. Holozoic mode of nutrition is seen in Amoeba and Paramecium.
- D. Lysosome involved in the digestion of engulfed food is seen in the contractile vacuole of Amoeba.
Which of the above statements are incorrect?
- A. A, C and D
- B. A, B and D
- C. A and D
- D. B and D
Consider the following statements.
- A. Almost all animals are either herbivores or carnivores.
- B. Human beings, rats, crows, etc. are omnivorous.
- C. Holozoic mode of nutrition is seen in Amoeba and Paramecium.
- D. Lysosome involved in the digestion of engulfed food is seen in the contractile vacuole of Amoeba.
Which of the above statements are incorrect?
- A. A, C and D
- B. A, B and D
- C. A and D
- D. B and D
Grade 77 grade science
Last Activity: 9 Months ago
Does pure water conduct electricity?
- A. Yes
- B. No
- C. Sometimes
- D. none of the above
Does pure water conduct electricity?
- A. Yes
- B. No
- C. Sometimes
- D. none of the above
Grade 77 grade science
Last Activity: 9 Months ago
Vermi-processing toilet is beneficial because
- a) It reduces the diseases
- b) It increases soil fertility
- c) Both a and b
- d) It reduces electricity
Vermi-processing toilet is beneficial because
- a) It reduces the diseases
- b) It increases soil fertility
- c) Both a and b
- d) It reduces electricity
Grade 77 grade science
Last Activity: 9 Months ago