What is germination?

A. It is the beginning of growth of a plant embryo.

B. It is the transition from a sprout to a seedling.

C. It is the seed being planted into the soil.

D. It is the process of going from a seedling to a tree

Answer:

option d is correct

Explanation:

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Answer:

Explanation:

See the attached picture with answers filled in.

Note:- For tabular way solution refer to the first one .Here I do a simple way to let you understand better

Let's do

Balanced equation is given by

[tex]\\ \rm\Rrightarrow 4Fe+3O_2\longrightarrow 2Fe_2O_3[/tex]

Moles of O_2:-

Moles of Fe_2O_3

Mass of Fe_2O_3

Answer:

i know the answer but i dont have time bro

Answer:

Cattail

Explanation:

Cattail is the plant which have aquatic habitat​.

An area with water that directly supports a particular species, population, as well as the community is referred to as an aquatic habitat.

Cattails were also perennial upright plants that grow from rhizomes which creep. The long, tapering petals seem to be slightly spongy and even have smooth borders.

Cattail is a plant which has aquatic habitat​.

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Well, by definition,

molarity

=

moles of solute

volume of solution

Answer:

let's see, oh I get it let me give you a hint. You need to do something with _Mgs+_ and _CaSO4>_ in order to get product 1 and product 2

Taking into account the reaction stoichiometry and limiting reagent, 26.72 grams of Na₂SO₄ are formed when 22 grams of NaOH reacts with 21 grams of H₂SO₄.

In first place, the balanced reaction is:

2 NaCl + H₂SO₄ → Na₂SO₄ + 2 HCI

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

NaCl: 2 moles ×58.45 g/mole= 116.9 grams

H₂SO₄: 1 mole ×98 g/mole= 98 grams

Na₂SO₄: 1 mole ×142 g/mole= 142 grams

HCI: 2 moles ×36.45 g/mole= 72.9 grams

The limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.

To determine the limiting reagent, it is possible to use a simple rule of three as follows: if by stoichiometry 116.2 grams of NaCl reacts with 98 grams of H₂SO₄, 22 grams of NaCl reacts with how much moles of H₂SO₄?

[tex]mass of H_{2} SO_{4} =\frac{22 grams of NaClx98 grams of H_{2} SO_{4} }{116.2 grams of NaCl}[/tex]

mass of H₂SO₄= 18.55 grams

But 18.55 grams of H₂SO₄ are not available, 21 grams are available. Since you have less moles than you need to react with 22 grams of NaCl, H₂SO₄ will be the limiting reagent.

The following rules of three can be applied, considering the limiting reagent: if by reaction stoichiometry 116.9 grams of NaCl form 142 grams of Na₂SO₄, 22 grams of NaCl form how much mass of Na₂SO₄?

[tex]mass of Na_{2}S O_{4} =\frac{22 grams of NaClx142 grams of Na_{2}S O_{4}}{116.9 grams of NaCl}[/tex]

mass of Na₂SO₄= 26.72 grams

Then, 26.72 grams of Na₂SO₄ are formed when 22 grams of NaOH reacts with 21 grams of H₂SO₄. The correct answer is first option.

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Answer:

Explanation:

The molar volume of a gas at STP (Standard Temperature and Pressure), which is equal to 22.4 liters.

There are 6.02x10^23 molecules in 1 mole of Argon.

So for 1.51x10^24 molecules of Argon, the volume at STP should be

(1.51x10^24 / (6.02x10^23)) * 22.4

= 56.19 liters

Moles of Argon:-

Now

[tex]\\ \rm\Rrightarrow 2.5(22.4)=56L[/tex]

Answer:

NaNO3 - soluble in water

NH4Br - soluble in water

BaSO4 - insoluble in water

Answer:

A.) Air pollutants wash onto land and water bodies from precipitation

C.) Storm water runoff carries pollution

I hope I helped! ^-^

Answer:

0.500 mole of Xe (g) occupies 11.2 L at STP.

General Formulas and Concepts:

Gas Laws

Stoichiometry

Explanation:

Step 1: Define

Identify.

0.500 mole Xe (g)

Step 2: Convert

Topic: AP Chemistry

Unit: Stoichiometry

Answer:

Here ya go

Explanation:

Wavelengths are determined by the frequency of the waves. If it is a high frequency you will have a short wavelength. If it is a low frequency you will have a long wavelength.

The solubility of an alcohol depends on the length of the alkyl chain in the molecule.

An alcohol is an organic compound that contains the -OH group. We have to note that the shape of an alcohol have a profound impact on its solubility. tert-butanol is the most soluble of the three because of its small surface area.

Based on size, 1-butanol is relatively more soluble than 1-pentanol because solubility of alcohols decreases as the length of the alkyl chain increases.

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Answer:

0.015 Liters

Explanation:

The ionization energy is 1  × 10^-18 J

The ionization energy is the energy required to remove an electron from an atom.

We have the following information;

wavelength of the photon = 58.4 nm

Speed of the electron = 2310 × 10^3 m/s

Since;

hv = I + 1/2mv^2

v = c/λ

hc/λ =  I + 1/2mv^2

I = hc/λ  - 1/2mv^2

I = (6.6 × 10^-34 × 3 × 10^8/58.4 × 10^-9) - (1/2 × 9.11 × 10^-31 × (2310 × 10^3)^2)

I = 1  × 10^-18 J

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The amount of N2O5 to start with would be 35.79 grams

From the balanced equation of the reactions:

[tex]2N_2O_5 --- > 4NO_2 + O_2[/tex]

Mole ratio of N2O5 and NO2 = 1:2

Since the reaction's actual yield is 82%, the theoretical yield would be: 25 x 100/82 = 30.49 grams

Mole of 25 g NO2 = 30.49/46

                              = 0.66 mole

Equivalent mole of N2O5 = 0.54/2 mole

                                               = 0.33 moles

Mass of 0.27 mole N2O5 = 0.33 x 108.01

                                                = 35.79 grams

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Answer:

4f its the last orbital of the above

According to the Aufbau principle and electronic configuration, orbital  which is farthest from the nucleus is 4f.

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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Answer:

mesosphere

Explanation:

The coldest layer of the atmosphere is known as the mesosphere.

The layers of the atmosphere have the coldest temperatures is mesosphere. Therefore, option B is correct.

The third layer of the atmosphere, the mesosphere, is situated just above the stratosphere and under the thermosphere. As altitude rises, temperature drops in the mesosphere.

The third of the five layers that make up the Earth's atmosphere, the mesosphere, is located between the thermosphere and the stratosphere.

It is distinguished by a temperature that drops with altitude, becoming the coldest region of the entire atmosphere at a minimum of around 55 miles above the surface.

The coldest part of the Earth's atmosphere is the top of the mesosphere, where temperatures can locally drop as low as 100 K (-173°C).

Thus, option B is correct.

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2 grams of baking soda would contain 0.024 moles

The number of moles of a substance is the ratio of its mass and molar mass.

mole = mass/molar mass

Baking soda has a molar mass of 84.007 g/mol

Thus, 2.00 grams of baking soda will have:

                         2/84.007 = 0.024 moles

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Answer:

E

Explanation:

We want to determine the amount of methanol (CH₃OH) needed to prepare 175 mL of a 1.00 M CH₃OH solution.

First, determine the amount of moles of CH₃OH needed. Recalled that molarity is simply moles per liter volume (mol / L):

[tex]\displaystyle\begin{aligned} & 175\text{ mL} \cdot 1.00\text{ M CH$_3$OH} \\ \\ = & 175\text{ mL} \cdot \frac{1.00\text{ mol CH$_3$OH}}{1\text{ L}} \cdot \frac{1 \text{ L}}{1000\text{ mL}} = 0.175\text{ mol CH$_3$OH} \end{aligned}[/tex]

Convert from moles of CH₃OH to grams:

[tex]\displaystyle 0.175\text{ mol CH$_3$OH} \cdot \frac{32.05\text{ g CH$_3$OH}}{1\text{ mol CH$_3$OH}} = 5.61\text{ g CH$_3$OH}[/tex]

In conclusion, the answer is E.

Answer:

A polar molecule

Explanation:

1. 1) A solid has a definite shape and volume. 2) Solids in general have higher density. 3) In solids, intermolecular forces are strong. 4) Diffusion of a solid into another solid is extremely slow

3.Solid is one of the fundamental states of matter which has fixed shape and volume. Upon the application of external force, solids do not undergo deformation and are incompressible.

Examples: diamond, wood, stone, and metals

2 SO₂(g) + O₂(g) => 2SO₃(g)

moles SO₃ = 2/1 x moles O₂ = 2/1 x 0.75 = 1.5 moles

molecules = 1.5 x 6.02 x 10²³ (avogadro's number) = 9.03 x 10²³ molecules

By balancing the reaction, it is clear that one  mole of oxygen gas produces 2 moles of sulphur trioxide (SO₃) and thus, 0.75 moles of O₂ will produce 1.5 moles of SO₃.

Sulphur trioxide is a covalent compound formed from the combination of sulphur dioxide with atmospheric oxygen. This reaction is an example of combination reaction.

The balanced chemical equation for the reaction of O₂ with sulphur  dioxide is written as follows:

[tex]\rm2SO_{2}(g) + O_{2} (g) \rightarrow 2 SO_{3}[/tex].

As per the balanced reaction, one mole of oxygen produces two moles of the product sulphur trioxide. Hence, the number moles of SO₃ formed from 0.75 moles of oxygen gas is calculated as follows:

no.of moles of SO₃ = (2 × 0.75) /1

                                 = 1.5 moles.

Therefore, the number of moles of SO₃ formed from 0.75 moles of O₂  is 1.5 moles.

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Answer:

true

Explanation:

I did the quiz and got it right

Answer:

New environments for puppies may make them excited, fearful, aggressive, or confused.

Explanation:

"When your dog first experiences a new location or environment, there's no way of knowing how they'll react. New sights, sounds, and smells could make them fearful, aggressive, or over-excited, but with the proper training and introduction, most dogs will quickly adapt and start taking every new location in stride." - Excerpt from *Puppy training textbook*

New environments are also a good thing in puppy growth, to teach them how to learn and adapt to new surroundings.

Hope this helps :)