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lbvjy [14]
3 years ago
15

What name is given to a polymer where all of the substituents (i.e., the R groups) are in the same relative orientation (i.e., o

n the same side of the polymer chain)?
Chemistry
1 answer:
kirza4 [7]3 years ago
5 0

Answer: isotactic

Explanation:

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3. 79,789kJ = (293k) (377kJ)
KatRina [158]

the anwser would most likely be j=0

5 0
3 years ago
A chemist makes up a solution by dissolving 42.0 g of Mg(NO3)2 in enough water to produce a final solution volume of 259 mL. To
Igoryamba

Answer:

The molar mass of Mg(NO₃)₂, 148.3 g/mol.

Explanation:

Step 1: Given data

  • Mass of Mg(NO₃)₂ (solute): 42.0 g
  • Volume of solution: 259 mL = 0.259 L

Step 2: Calculate the moles of solute

To calculate the moles of solute, we need to know the molar mass of Mg(NO₃)₂, 148.3 g/mol.

42.0 g × 1 mol/148.3 g = 0.283 mol

Step 3: Calculate the molarity of the solution

M = moles of solute / liters of solution

M = 0.283 mol / 0.259 L

M = 1.09 M

7 0
2 years ago
A solid substance turns into a liquid. Which best describes this change?
nordsb [41]
Melting? not really sure what type of answer they are going for but the substance is going through the melting phase
8 0
2 years ago
Read 2 more answers
Beth pushes a box with a force of 2 N to the left. Dave pushes the same box from the opposite side with a force of 8 N to the ri
AleksAgata [21]

Answer:

is this based on the newtons law and balnce force

Explanation:

5 0
3 years ago
Choose the larger atom from each pair, if possible.
Ksivusya [100]

Answer:

a. Sn or Si ⇒ Sn

b. Br or Ga ⇒ Ga

c. Sn or Bi ⇒ similar in size

d. Se or Sn ⇒ Sn

Explanation:

The larger atom has a larger atomic radius. We have to consider how varies the atomic radius for chemical elements in the Periodic Table. In a group (column), the atomic radius increases from top to bottom while in a period (file), it increases from right to left.

a. Sn or Si ⇒ Sn

They are in the <u>same group</u>. Sn is on the top, so it has a larger atomic radius.

b. Br or Ga ⇒ Ga

They are in the <u>same period</u>. Ga is located at the left so it has a larger atomic radius.

c. Sn or Bi ⇒ similar

They are not in the same group neither the same period. Bi is located more at the bottom, so it would be larger than Sn, but Bi is also at the right side, so it would be smaller than Bi. Thus, they have comparable sizes.

d. Se or Sn⇒ Sn

They are not in the same group neither the same period. Se is located at the top and right side compared to Sn, so Sn is the larger atom.

3 0
2 years ago
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