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Setler79 [48]
3 years ago
14

Enzymes are essential to cells because they are responsible to either making or breaking other molecules the cells need. True or

false
Chemistry
2 answers:
8_murik_8 [283]3 years ago
7 0

Answer:

True is the answer to this question

musickatia [10]3 years ago
6 0

Answer:

true, because your body need something to break down molecules... and that the job of an enzyme, hope this helps :))

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The type of social bonds present in modern societies that are based on difference, interdependence, and individual rights is cal
Goryan [66]

Answer:

Organic Solidarity

Explanation:

3 0
3 years ago
What is the pH of a 0.08 M solution of Ca(OH),?
torisob [31]

Answer:

pH = 12.20

Explanation:

Ca(OH)2 is a strong base, so it dissociates completely. A 0.08 M solution of Ca(OH)2 is 0.16 M OH-, since every mole of Ca(OH)2 has 2 OH-.

Calculate pOH using [OH-] = 0.16 M

pOH = -log(0.16) = 0.80

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4 0
3 years ago
What experimental observations indicate a chemical change is taking place?
Anestetic [448]
A chemical change is characterized of the formation of new substances or a chemical reaction. There are a number of observations that we can see if this type of change happens. One would be the formation of gas bubbles, this indicates that one of the products is a gas. Another observation would be a formation of a precipitate in the solution, it would indicate that the new solid formed is not soluble in the solution. A permanent color change in the solution would also indicate a chemical change because it may be that the new substance that is formed has its own distinct color when in solution. 
6 0
3 years ago
Write the lewis structure for mgi2. draw the lewis dot structure for mgi2. include all lone pairs of electrons.
viktelen [127]
Lewis Structure is drawn in following steps,

1) Calculate Number of Valence Electrons:
    
# of Valence electrons in Mg  =  2
# of Valence electrons in I      =  7
# of Valence electrons in I      =  7
                                               ---------
Total Valence electrons          =  16

2) Draw Mg as a central atom surround it by two atoms of Iodine.

3) Connect each Iodine atom to Mg, and subtract two electrons per bond. In this case we will subtract 4 electrons from total valence electrons. i.e.

Total Valence electrons           16
- Four electrons                    -   4
                                              ----------
                                                  12

4) Now start adding the remaining 12 electrons on more electronegative atoms i.e. Iodine.

The final lewis structure formed is as follow, 

4 0
3 years ago
Which of these best describes the bonding between oxygen and hydrogen in the water molecule?
DaniilM [7]
It is a Polar Covalent.
3 0
4 years ago
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