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Juliette [100K]
3 years ago
8

PLEASE HELP 50 POINTS!!

Chemistry
1 answer:
Arturiano [62]3 years ago
8 0

Answer:

D. use the data to evaluate the effectiveness of the prototype

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Plz help, if you don't know the answer please don't answer it
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Answer:

1. 71 and 29

2. 97 and 3

3. 2.1 and 1.2

Explanation:

6 0
3 years ago
An exergonic reaction __________ free energy, and an endergonic reaction __________ free energy.
Rashid [163]
An exergonic reaction proceeds with net release of free energy.
An endergonic reaction absorbs free energy
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2 years ago
How many grams are in 0.550 mol of cadmium? mass:​
matrenka [14]

Answer:

One mole of cadmium (6multiply1023 atoms) has a mass of 112 grams, as shown in the periodic table on the inside front cover of the textbook. The density of cadmium is 8.65 grams/cm3.

Explanation:

7 0
3 years ago
One orbit of the earth around the sun equals _____________ miles.
garri49 [273]

Answer:

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4 0
3 years ago
Read 2 more answers
Please write a essay and pick one prompt and at least half a page long thank you!
MArishka [77]
Changes in matter occur every day. There are two types of ways matter can be altered; physically and chemically. Physical changes do not change the composition of the matter while chemical changes occur when one or more substances turn into a completely new substance. Physical changes can be seen through an altering of the substances physical property. A substances physical property is observed and measured without changing the composition of the subject. Descriptive words that would help to identify a substance’s physical property include hard, soft, brittle, flexible, heavy, and light just to name a few. Let’s say you’re eating, throughout the day your stomach starts to growl that is what happens when your stomach is digesting your food. Digestion is an example of chemical change. Chemical change happens every day and more than half the time we don’t realize it whether it’s metal starting to rust, or our food starting to rot. Physical change can happen when your popsicle starts to melt, or your water starting starting to boil. These are examples of physical change.
3 0
3 years ago
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