Answer:
Using the periodic table of the elements to find atomic weights, we find that hydrogen has an atomic weight of 1, and oxygen's is 16. In order to calculate the molecular weight of one water molecule, we add the contributions from each atom; that is, 2(1) + 1(16) = 18 grams/mole.
Explanation:
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Answer:
Ne gets home at 1:45.
Explanation:
It’s 11:00. He takes 1 hour to make the 40 mile trip. It’s 12:00. He takes 60 minutes to gather lunch, rod and reel, and at the lake. It’s 1:00. He takes 45 minutes to get home. It’s 1:45.
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<h3><u>Answer;</u></h3>
<em> D) It can be mass produced.</em>
<h3><u>Explanation;</u></h3>
- <em><u>Synthetic materials</u></em> are those materials that are <em><u>man-made, that is they are synthesized in the lab or in industries.</u></em> They include synthetic fibers such as nylon, polyester and acrylic among others.
- <em><u>Synthetic materials</u></em> have a range of advantages over natural materials. For example, synthetic materials are durable than natural ones, they are cheap, they do not shrink and also resistant to chemicals among others.
- Additionally, synt<em><u>hetic materials such as synthetic fibers they can be mass produced in industries or in the labs. </u></em>
Simply pit it in the unknown liquid and see what chemical reaction it has
Answer:
The part of the experiment that is set to compare data
Explanation:
The controlled variable is what stays constant throughout an experiment. You use the controlled variable to compare the new data to see what happened during whatever reaction you could say.