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Amiraneli [1.4K]
3 years ago
5

Identify the structure that protects and gives support to this plant cell.

Chemistry
2 answers:
erik [133]3 years ago
8 0
Cytoskeleton, because skeletons support structures
padilas [110]3 years ago
6 0
Cell wall
Giddy Up!!!!!!!!!!!
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Magnesium has three common isotopes.
sladkih [1.3K]

Answer:

Explanation:

percentage abundance of third isotope = 100 - ( 78.900 + 10.009)

= 11.091 %

Atomic mass

24.1687 x .789 + 25.4830 x .10009 + 24.305 x .11091  

19.069 + 2.5506 + 2.69566

= 24.3153 amu

7 0
2 years ago
In the formula 5CaSO4 the total number of sulfur atoms present is a. 1. b. 5. c. 9. d. 20?
podryga [215]
The answer is b . (1*5=5)
4 0
3 years ago
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What causes objects to speed up, slow down, and change directions?
vlada-n [284]
The answer is force

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4 0
3 years ago
What is the balance equation for
murzikaleks [220]

1st one

2_2_2

2nd one

3_1_1_3

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7 0
2 years ago
A chemical reaction involves reactant species A, B, and C. Leaving all other factors identical, doubling the concentration of sp
umka21 [38]

Answer:

Rate = k . [B]² . [C]

Explanation:

The dependence of the reaction rate on the concentration of the reactants is given by the reaction order of each one, as shown in the rate equation.

Rate=k.[A]^{x} .[B]^{y} .[C]^{z}

where,

k is the rate constant

x, y, z are the reaction orders.

  • <em>The rate of reaction is not affected by changing the concentration of species A.</em> This means that the reaction order for A is x = 0 since when its concentration changes, the rate stays the same.
  • <em>Leaving all other factors identical, doubling the concentration of species B increases the rate by a factor of 4.</em> This means that the reaction order for B is y = 2, so when the concentration is doubled, the new rate is 2² = 4 times the initial rate.
  • The rate of the reaction is linearly dependent on the concentration of C. This means that the reaction order for C is z = 1, that is, a linear dependence.

All in all, the rate equation is:

Rate = k . [B]² . [C]

3 0
2 years ago
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