Answer:
1. balance observation using "how much" = 5. quantitative instrument
2. graduated cylinder = 4. quantitaive instrument of volume
3. hypothesis proposed explanation= 7. qualitative descriptive observation
4. unit of volume= L
6. kg = primary unit of mass
Explanation:
there seem to be some typo error in uploading question but still it was clear to answer.
i believe the answer is a Brainiest plz
Answer:
Oxygen (O), for example, has three naturally occurring isotopes, which can be written as 8/16O, 8/17 O, and 8/18O.
Explanation:
The polarity arrow should point AWAY FROM THE CENTRAL SULPHUR ATOM.
Arrows are used for different purposes in chemistry. Polarity arrow is used to indicate the position of polar bonds in organic molecules. Polarity refers to the separation of the electric charges in a substance, so that the substance is partially positive and at the same time it is partially negative.
16: solar energy, 17: glucose, 18: heat, 19: atp
