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Tcecarenko [31]
3 years ago
11

Help this is for ap ex help me please

Chemistry
1 answer:
eduard3 years ago
6 0

Answer:

c

Explanation:

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PLEASE HELP ME I NEED TO SUBMIT RIGHT NOW
sasho [114]

Answer:  number of protons?

Or  different atomic weight.

I DONT KNOW ;';

5 0
3 years ago
What to use the genotypes of parents to predict the possibility of the phenotypes of the of spring
natima [27]
The answer is a Punnet Square
7 0
3 years ago
Read 2 more answers
Ferrophosphorus (Fe2P) reacts with pyrite (FeS2) producing iron(II) sulfide and a compound that is 27.87% P and 72.13% S by mass
Shtirlitz [24]

Ferrophosphorus (Fe2P) reacts with pyrite (FeS2) producing iron(II) sulfide and a compound that is 27.87% P and 72.13% S by mass and has a molar mass of 444.56 g/mol of anxiety (low vs. high) and stress (low vs. moderate vs. high) on test.

Everyone experiences anxiety occasionally, but persistent anxiety can reduce your quality of life. Though Ferrophosphorus best known for altering behavior, worry can have negative effects on our physical health. Anxiety speeds up our heartbeat and breathing, concentrating blood flow to the parts of our brains that need it. You are getting ready for a challenging situation by having this extremely bodily reaction. Test performance may be impacted Ferrophosphorus anxiety. According to studies, pupils with low levels of test anxiety perform better on multiple-choice question (MCQ) exams than pupils with high levels of anxiety. Studies have indicated that female students have greater levels of test anxiety than male students.

Learn more about anxiety here:

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7 0
2 years ago
Suppose you find a rock originally made of potassium-40, half of which decays into argon-40 every 1.25 billion years. You open t
FromTheMoon [43]

We see that in 1 rock, there are 31 atoms of Argon and 1 atom of Potassium so the relative concentration of Potassium is:

1 / 32

or can be written as:

1 / 2^5

So this means that 5 half-lives have passed.

So the years are:

<span>years passed = 5 * 1.25 billion years = 6.25 billion years</span>

6 0
3 years ago
How are cellular respiration and photosynthesis similar
Nimfa-mama [501]
<h2>Answer:</h2><h2><em>Cellular respiration takes a glucose molecule and combines it with oxygen; the result is energy in the form of ATP, along with carbon dioxide and water as waste products. Photosynthesis takes carbon dioxide and combines it with water, enabled by radiant energy, usually from the sun.</em></h2><h2><em>Explanation:</em></h2><h2><em></em></h2>
8 0
3 years ago
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