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Dimas [21]
3 years ago
11

The numbers represent the change in energy for a chemical reaction. They are calculated by subtracting the energy of products fr

om the energy of reactants. Which number would result from an endothermic reaction?
Chemistry
1 answer:
Vsevolod [243]3 years ago
7 0

Answer:jb hn jbil

brefyxfycb cghvhgbnbhijgiuh

Explanation:nbygughuhijijo9jio

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What is one similarity between metals and metalloids?
Arturiano [62]

The correct answer that explains similarities between metal and Metalloids as regards the question is They both conduct electricity

  • Metalloids can be regarded as elements that are  similar to metals, this is because they posses valence orbitals which is described as highly delocalized over macroscopic volumes.

  • As a result of this they can serve as electrical conductors.

  • metalloids posses small energy gap which is located between the valence band as well as the conduction band, as a result of this they are considered as  intrinsic semiconductors when compare to pure conductors like metal.

  • Example of metal is Calcium, sodium and that of Metalloids are silicon and  germanium

Therefore, metal and Metalloids are similar because of their conductivity of electricity

Learn more at: brainly.com/question/21036799?referrer=searchResults

4 0
2 years ago
What is the pH of a 4.08*10-'M solution of H30+?
Mariana [72]

Answer:

8.4

Explanation:

-log(4.08x10^-9) = 8.4

- Hope that helped! Please let me know if you need further explanation.

4 0
2 years ago
What is the amount in grams of EDTA needed to make 315.1 mL of a 0.05 M EDTA solution. The molar mass of EDTA is 374 g/mol
statuscvo [17]

Answer:

58.92 g EDTA

Explanation:

315.1 mL = .3151 L    

M = Moles / Liter

.3151 L  x <u>0.5 mol EDTA</u>  x  <u>374 g EDTA</u>  =  58.92 g EDTA

                1 L EDTA             1 mol EDTA

4 0
1 year ago
Here is a list of ingredients for a simple cake:
cupoosta [38]
So really you only need to answer the first one because you have more than enough og everything. 2×(what)=14 then that will be your answer
3 0
3 years ago
Which of the following conditions would decrease the ability of a person to hear a sound? A. The distance to the sound source be
Zinaida [17]
The answer is B). A wave loses energy as it moves through a medium.
7 0
3 years ago
Read 2 more answers
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