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Sveta_85 [38]
3 years ago
12

4

Chemistry
2 answers:
Masteriza [31]3 years ago
5 0
The answer is D. The teacher describes the plant by saying it has leaves, stems, roots, and fruit. stems are vascular tissue so it can't be C, B, or A.
Alja [10]3 years ago
3 0

Answer:

D.  flowering plant

Explanation:

<em>Option A is incorrect because moss is a thalloid plant with no true plant body.</em>

<em>Option B is incorrect because the plant could not have produced fruits without flowering.</em>

<em>Option C is incorrect because ferns do not produce fruits.</em>

The correct option is D. Flowering plants produce fruits and posses true leaves, stems and roots. The ovule of the flower becomes the seed after fertilization and the ovary becomes the fruit.

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write the equilibrium expression for the base ionization of the weak base of methylamine, ch3 nh2 . hint: first write the balanc
svetlana [45]

CH3NH2 + HOH ==> CH3NH3^+ + OH^-Which molecule/ion accepts a proton. That is the base. Which molecule/ion donates a proton. That is the acid.

A stable subatomic particle known by the symbol for "proton"

e elementary charge, p, H+, or 1H+ having a positive electric charge. Its mass is 1,836 times greater than an electron's mass and just a little bit less than that of a neutron (the proton–electron mass ratio). "Nucleons" refers to protons and neutrons together, each of which has a mass of roughly one atomic mass unit (particles present in atomic nuclei).

Each atom. has a nucleus. that contains one or more protons. In order to keep the atomic electrons bound, they offer the central attractive electrostatic force. An element's defining characteristic, known as the atomic number, is the number of protons in the nucleus (represented by the symbol Z)

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4 0
1 year ago
A period is a horizontal row on the periodic table. <br> a. True<br> b. False
Kay [80]
It is True because in the periodic table of elements, there are seven horizontal rows of elements called periods. The vertical columns of elements are called groups, or families.
6 0
3 years ago
9. What type of bonds hold polyatomic ions together?
ella [17]
The answer is B Covalent bonds
5 0
3 years ago
Read 2 more answers
If the volume and moles of a container are held constant, the temperature of a gas is inversely proportional to the pressure.
noname [10]

Answer:

FALSE

Explanation:

Assuming that the gas is ideal

Therefore the gas obeys the ideal gas equation

<h3>Ideal gas equation is </h3><h3>P × V = n × R × T</h3>

where

P is the pressure exerted by the gas

V is the volume occupied by the gas

n is the number of moles of the gas

R is the ideal gas constant

T is the temperature of the gas

Here volume of the gas will be the volume of the container

Given the volume of the container and number of moles of the gas are constant

As R will also be constant, the pressure of the gas will be directly proportional to the temperature of the gas

P ∝ T

∴ Pressure will be directly proportional to the temperature

4 0
3 years ago
CHEMISTRY
andrezito [222]
Number 1.c
number 2.a
number 3.b
number 4.d
8 0
3 years ago
Read 2 more answers
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