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3 years ago

Function of meritematic tissue

Chemistry

2 answers:

Vikki [24]3 years ago

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Answer:

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Meristematic tissues are responsible for plant growth. They are present at the tips of roots,stem and branches. The cells present in these tissues constantly divide to produce new cells. This leads to an increase in the height and girth of plants.

Explanation:

#J.r

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good day

Ivahew [28]3 years ago

7 0

Answer:

help to grow plants is the function of merismetic tissue

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lisov135 [29]

POH=4.22

pOH = -lg[OH⁻]

[OH⁻]=10^(-pOH)

[OH⁻]=10⁻⁴·²² = 6.0×10⁻⁵ mol/L

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4 years ago

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What quantum number of the hydrogen atom comes closest to giving a 24-nm-diameter electron orbit?

Paraphin [41]

n = 15. A Bohr orbit with n = 15 comes closest to having a 24 nm diameter .

The formula for the radius r of the nth orbital of a hydrogen atom is

r = n^2·a

where

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We can solve this equation to get

n = √ (r/a)

If d = 24 nm, r = 12 nm.

∴ n = √(12 nm/0.0529 nm) = √227 = 15.1

n must be an integer, so n = 15.

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3 years ago

Organize the following elements in order of increasing atomic radius (Ge, He, Sr, O, Ba)

Katen [24]

Answer:

Explanation:

An atom gets larger as the number of electronic shells increase; therefore the radius of atoms increases as you go down a certain group in the periodic table of elements.

In general, the size of an atom will decrease as you move from left to the right of a certain period.

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3 years ago

Write the rate law for the reaction 2A + B → C if the reaction

konstantin123 [22]

Answer:

1. $R=k[A]^1[B]^2$

2. $R=k[B]^1$

3. $R=k[A]^0[B]^0=k$

4. $R=k[A]^1[B]^{-1}$

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

(1) is second order in B and overall third order.

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Order of the reaction = sum of stoichiometric coefficient

= x + 2 = 3

x = 1

Rate of the reaction =R

$R=k[A]^1[B]^2$

(2) is zero order in A and first order in B.

2A + B → C

Rate of the reaction =R

$R=k[A]^0[B]^1=k[B]^1$

Order of the reaction = sum of stoichiometric coefficient

= 0 + 1 = 1

(3) is zero order in both A and B .

2A + B → C

Order of the reaction = sum of stoichiometric coefficient

= 0 + 0 = 0

Rate of the reaction =R

$R=k[A]^0[B]^0=k$

(4) is first order in A and overall zero order.

2A + B → C

Order of the reaction = sum of stoichiometric coefficient

= 1 + x = 0

x = -1

Rate of the reaction = R

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riadik2000 [5.3K]

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Make sense?

I hope this helps! (:

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3 years ago

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