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Classify the elements as diatomic or monatomic. If necessary, refer to the periodic table to help you identify the diatomic elements.

Answer:

1. Solid

2. atom

3. faster and farther apart

4.more freely moving than a solid

5.The amount of matte in an object

Explanation:

Answer:

1. Solid

2. Atom

3. Faster and farther apart

4. More freely moving than a solid

5. The amount of matter in an object.

Answer:

118 elements in the periotic table

Explanation:

:)

Answer:

uuuhhh?

Explanation:

Answer:

D.

Explanation:

There are three types of particles within atoms: protons, neutrons, and electrons.

Electrons have essentially no mass and orbit the nucleus in various energy levels.

Protons and neutrons have mass and are both found within the nucleus of the atom.

Answer:

3.2

Explanation:

dont trust me

Answer:

hi basically also also Aussie

Explanation:

Yes carbon dioxide found in each case

Answer:

4 moles of potassium chlorate must be used to produce 6 moles of oxygen gas.

Explanation:

Answer:

24.3g

Explanation:

Mr of Oxygen = 16 (15.999)

Mr of Magnesium = 24.3 (24.305)

Mass / Mr = moles

16.0g / 16 = 1

Mr x moles = Mass

24.3 x 1 = 24.3g

Answer: c) it moves toward a piece of iron

Explanation:

Answer:

A. Empirical formula => C₂H₄O

B. Molecular formula => C₄H₈O₂

Explanation:

From the question given above, the following data were obtained:

Mass of C = 0.273 g

Mass of H = 0.046 g

Mass of O = 0.182 g

Molar mass of compound = 88 g/mol

A. Determination of the empirical formula of the compound.

C = 0.273 g

H = 0.046 g

O = 0.182 g

Divide by their molar mass

C = 0.273 /12 = 0.023

H = 0.046 /1 = 0.046

O = 0.182 /16 = 0.011

Divide by the smallest

C = 0.023 / 0.011 = 2

H = 0.046 / 0.011 = 4

O = 0.011 / 0.011 = 1

Thus, the empirical formula of the compound is C₂H₄O

B. Determination of the molecular formula of the compound.

Empirical formula = C₂H₄O

Molar mass of compound = 88 g/mol

Molecular formula =?

Molecular formula = [C₂H₄O]ₙ

[C₂H₄O]ₙ = 88

[(12×2) + (4×1) + 16]n = 88

[24 + 4 + 16]n = 88

44n = 88

Divide both side by 44

n = 88 / 44

n = 2

Molecular formula = [C₂H₄O]ₙ

Molecular formula = [C₂H₄O]₂

Molecular formula = C₄H₈O₂

Answer:

The questions I would like to answer are:

Will the productivity of the river severn offset the cost of installing the plant?

Is it possible to build a dam on site?

Is it possible to establish submerged turbines in this location?

How would human life and nature be impacted by the plant?

Explanation:

Tidal power plants are signals that use tidal energy to generate electricity. The installation of this type of plant is quite expensive and involves the establishment of dams on site to take advantage of the differences between high and low tides and the establishment of submerged turbines to take advantage of sea currents.

To decide whether I would decide to build a tidal plant on the Severn River, I would need to evaluate a few things to make sure that the project is viable. For that I would ask myself some questions like:

Will the productivity of the river severn offset the cost of installing the plant? (If the installation costs are greater than the capacity of this river to promote high generation of electricity, it would be better to abandon the project)

Is it possible to build a dam on site? Is it possible to establish submerged turbines in this location? (It is necessary to consider the physical and chemical characteristics of the place to know if it is possible to install these two equipment and in a way that they work efficiently)

How would human life and nature be impacted by the plant? (Projects like this include major environmental and social impacts. These impacts must be analyzed and ways to mitigate them must be considered and included in the project.)

Answer:

Carbon dioxide

I hope it helps

#captainpower

pls make me brainliest

Answer:

Body system that helps to breathe

Explanation:

Hope this helps! follow and message me in the comments if u need more explanation!

Answer:

The respiratory system consists of the set of organs and tissues involved in the uptake of oxygen from the atmosphere and the release of carbon dioxide generated during aerobic respiration. This gas exchange is also called breathing or external respiration.

Explanation:

Answer:

False.

Explanation:

Carbon = 12

Beryllium = 9

good luck, i hope this helps :)

Answer:

1. They are mostly used to protect materials and prevent chemical reactions.

2.These are Groups

3. I guess it is Rows

Answer:

the force acting on Jennifer is 180 N

Explanation:

The computation of the force acting on Jennifer is shown below:

As we know that

Force = mass × acceleration

= 60 kg × 3 m/s

=  180 N

hence, the force acting on Jennifer is 180 N

We simply applied the above formula

Law of octaves states that when the elements are arranged in ascending order of atomic mass, every eighth element has comparable properties.

Features of law of octaves -:

Some limitations were made into this -:

Learn more about law of octaves ,here:

https://brainly.com/question/756068

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The law of octaves state about the elements​ that there must be 8 electrons in the outermost or valance shell of the electron to obtained the stability.

when the elements are arranged in the increasing order of atomic mass, every eighth element has comparable properties and  that  was the first time an atomic number was introduced  to each element of the periodic table.

To become the stable according to rule element must complete it octave otherwise it cannot be considered the stable one.

Therefore, law of octaves state about the elements​ that there must be 8 electrons in the outermost or valance shell of the electron to obtained the stability.

Learn more about octave rule, here:

https://brainly.com/question/13935829

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Answer:

The answer is thermal energy

Explanation:

Answer:3 electrons

Explanation:

Answer:

endothermic reaction

Photosynthesis is an endothermic reaction. This means it cannot occur without energy (from the Sun). The light required is absorbed by a green pigment called chlorophyll in the leaves.

Explanation: hope this helps u!

Answer:

Endothermic reaction I believe.

Explanation:

It can't occur without the energy from the sun. The light is absorbed by the green pigment called chlorophyll which is in the leaves of the plant.

Answer:

Water

Explanation:

The substance that has the highest number of moles also has the highest number of atoms.

The number of atoms of a substance can be calculated using the Avogadro's number. This number gives the number of elementary entities such as atoms, molecules and ions in one mole of a substance.

All you need to do is to find out which substance has the highest number of moles. This substance will also have the highest number of atoms present.

Learn more about Avogadro's number: https://brainly.com/question/1445383

Answer:

A reactive metal has the ability to easily lose an electron and acquire a positive charge. Sodium easily loses electrons and acquires a positive charge. Sodium easily lose electrons than magnesium and get oxidized to easily.

Explanation:

Answer:

These currents are on the ocean's surface and in its depths, flowing both locally and globally. Winds, water density, and tides all drive ocean currents. Coastal and sea floor features influence their location, direction, and speed. Earth's rotation results in the Coriolis effect which also influences ocean currents. -

Answer: The Coriolis effect

Explanation:

Answer:

The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust.

Explanation:

this is what will happen in water

Answer:

b

Explanation:

Answer:

B

Explanation: