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jeyben [28]
3 years ago
6

100 POINTS!!!!

Chemistry
2 answers:
11111nata11111 [884]3 years ago
8 0

fith statement

sixth statement

first statement I think

IrinaVladis [17]3 years ago
7 0
First statement
Fifth statement
Sixth statement
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What oxidizing agent is used to temporarily store high energy electrons harvested from glucose molecules in a series of gradual
PIT_PIT [208]

Answer:

What type of reaction is shown below? Check all that apply.

Ca + 2H2O → Ca(OH)2 + H2

synthesis

decomposition

combustion

single replacement

double replacement

Explanation:

6 0
3 years ago
Why are alkali metals so reactive?
Savatey [412]

Answer:

<em>Alkali metals are among the most reactive metals. This is due in <u>part to their larger atomic radii and low ionization energies.</u> They tend to donate their electrons in reactions and have an oxidation state of +1. ... All these characteristics can be attributed to these elements' large atomic radii and weak metallic bonding.</em>

Explanation:

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8 0
2 years ago
A population of large predator
dangina [55]

Answer:

they will eat a lot of fish and make other animals go hungry

Explanation:

logic

3 0
3 years ago
Read 2 more answers
How many moles are in 2.04 x 10^8 atoms of calcium?
I am Lyosha [343]

Answer:

2.0 moles

Explanation:

I hope this helps you a little bit at least the answer is 2.0 but if you want to review more stuff check the photos

7 0
2 years ago
Calculation of Molar Ratios of Conjugate Base to Weak Acid from pH For a weak acid with a pKa of 6.0, calculate the ratio of con
Free_Kalibri [48]

Explanation:

According to the Handerson equation,  

          pH = pK_{a} + log \frac{\text{salt}}{\text{acid}}

or,      pH = pK_{a} + log \frac{\text{conjugate base}}{\text{acid}}

Putting the given values into the above equation as follows.

     pH = pK_{a} + log \frac{\text{conjugate base}}{\text{acid}}

       5.0 = 6.0 + log \frac{\text{conjugate base}}{\text{acid}}[/tex]

      log \frac{\text{conjugate base}}{\text{acid}} = -1.0

or,      \frac{\text{conjugate base}}{\text{acid}} = 10^{-1.0}

                            = 0.1

Therefore, we can conclude that molar ratios of conjugate base to weak acid for given solution is 0.1.

7 0
2 years ago
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