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Answer:

my answer is num:3 Hydrogen and oxygen.

Answer:

591.471 MILLIMETERS

Explanation:

Formula  

for an approximate result, multiply the volume value by 29.574

29.574*20=591.471

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Answer:

In molecules, there is a pattern to the number of covalent bonds that different atoms can form. Each block with a number indicates the number of covalent bonds formed by that atom in neutral compound

Explanation:

I don't really know the answer sorry

Answer: alkali metal

Explanation: ONLY if that is in you suggestions

if not i think this is right

Answer:

Atoms gain valence electrons to form anions.

Explanation:

Answer:

5.2g potassium chlorate is needed to do so

Answer:

The answer is 2.

Explanation:

Answer:

Pure substances made of more than one element are called. compounds. The chemical formula for a molecule of nitrogen is. N2. The balanced equation for the formation of water from the elements hydrogen and oxygen is.

Answer:

A compund

Explanation:

Did test got 100

Answer:

The answer is steam of fossil fuels

A container has 1.50 moles of hydrofluoric acid molecules, a deadly acid that can kill someone in minutes molecules are 9.03 × 10 ²³ molecules.

Moles are the smallest unit of a molecule that participates in the formation of the molecules to compete in a reaction and the value will be equal to the Avogadro number 2.303 × 10 ²³.

To calculate the total number of molecules the value of one mole is 2.303 × 10 ²³. so, for 1.50 moles of hydrofluoric acid will be,

                         1.50 moles = 2.303 × 10 ²³.moles

                  hydrofluoric acid molecules = 1.50 × 2.303 × 10 ²³

                    hydrofluoric acid molecules = 9.03 × 10 ²³ molecules.

Therefore,  9.03 × 10 ²³ molecules are present in the container has 1.50 moles of hydrofluoric acid molecules, a deadly acid that can kill someone.

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Answer:

this my answer

Explanation:

Answer:

a).

Explanation:

precise electron locations cannot be calculated, only predicted based on previous calculations. they cannot know whether or not an electron will be or will not be somewhere specific

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Answer:

During sexual reproduction the genetic material of two individuals is combined to produce genetically diverse offspring that differ from their parents. The genetic diversity of sexually produced offspring is thought to give species a better chance of surviving in an unpredictable or changing environment.

Answer:

Explanation:

Convergent boundaries: where two plates are colliding. Subduction zones occur when one or both of the tectonic plates are composed of oceanic crust. ...

Divergent boundaries – where two plates are moving apart. ...

Transform boundaries – where plates slide passed each other.

Answer:

3

Explanation:

3

Answer:

Explanation:

it is 980

Answer:

Electrons are transferred between atoms together in the ionic compound. The ions are arranged in a regular repeating pattern in an ionic crystal

Explanation:

Ions electrostatically attracts its counter ions and forms the ionic bond between these ions. The structure of ionic compounds depends on the number of atoms and bonded pair of electrons.

Ionic bonds are formed between metals and non-metals. Metals are electron rich and easily loss one or more electrons to the electron deficient non metals.

The loss of electrons make the atom forms a positive ion called cations. The gain of electrons make the formation of anions or negative ions. These positive ions and negative ions attracts electrostatically and forms ionic bond between them.

The structure of ionic compounds depends on the number of bonded atoms, size, presence of lone pairs etc. In solution ionic compounds exists as separate ions.

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One:

plants make their own food through a process known as photosynthesis

Two:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy and stored in the form of starch which can be used later

Three:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product.

Answer:

1. b

2. a

3. b

Explanation:

Answer:

The answer would be the hawk.

Explanation:

First-order consumers directly depends on grass or plants for survival.

A hawk gets its food from eating animals.

Again, hope this helps :D

Answer:

on the other hand

Explanation:

I think its correct

Answer:

 A FLUORINE

Explanation:

Explanation:

Option A, Fluorine is the correct answer, because it has 9 electrons in its shells.

hope this helps you.

Answer:

a usually reversible change in the physical properties of a substance, as size or shape:

Freezing a liquid is a physical change.

Explanation:

Answer:

Hey!

Explanation:

The definition of physical change can be expressed as.. let's say.. the physical difference in an organism. Physical change affects the form of a chemical substance, but not its chemical composition. Hope this helps! :)

[tex]\sf{Acid}+\bf{Base}\longrightarrow \tt{Salt}+\bold{Water }[/tex]

These type of reaction is called as Neutralization Reaction.

Answer:

Biodiversity is important to the stability of food webs because it increases the complexity of interactions between organisms and makes them better :')

Answer:

By using various chemical compounds to lift the stain while being gentle enough to keep fabric intact.

Answer:

All secondary consumers will die because they will lose their food source