How should you indicate that there are multiple polyatomic
ions in a chemical formula?

It depends on how many electrons are already in the outer shell.

If it is a large amount (if it is almost to the maximum), then it will want to borrow from another atom.

But if it is close to empty then it will want to give away so it will go back to the inner ring with will be full.

Hope this helps, good luck!

Answer:

3 significant figures

Explanation:

I underlined the significant figures in this number:

0 . 0 0 1 3 0

Answer:

A chemical reaction is described by achemical equation, an expression that gives the identities and quantities of the substances involved in a reaction. A chemical equation shows the starting compound(s)—the reactants—on the left and the final compound(s)—the products—on the right, separated by an arrow

Answer:

sodium + chlorine → sodium chloride

Explanation:

This was the answer straight from Plato. I hope that this helped you, please mark me the brainiest, like and rate my answer if it did! :)

Answer:

False

Explanation:

Every chemical element undergoes a reaction in order to fulfill the completion of their outermost shell. This is the case of nitrogen (symbol "N"), which is an element found in group 5 of the periodic table with atomic number 7 (i.e. 1s2 2s2 2p3). It possesses three valence electrons in it's outermost shell.

Looking at the configuration of the Nitrogen atom, it requires three electrons to complete its electron shell. Hence, nitrogen will enter a reaction in order to have its need for THREE ELECTRONS met in order to have its electron shell full.

Note that, nitrogen enters a chemical reaction to look for three electrons not three neutrons.

Answer:

sunlight is independent/hours is dependent

on the y axis it's hours/x axis is sunlight

Answer:

Theory

Explanation:

Answer:

522 Kilometers per Hour

Explanation:

Hi there! :)

Answer:

[tex]\huge\boxed{522 km/hour}[/tex]

[tex]\text{Express 145 m/s as a fraction:} \frac{145m}{s}[/tex]

[tex]\text}Convert to km/hour by multiplying by the equivalents in terms of meters and seconds to cancel out the units}[/tex]

[tex]\frac{145m}{sec} * \frac{3600 sec}{1 hour} * \frac{1 km}{1000 m} = \\\\\text {Cross out similar units and multiply the coefficients:}\\\\\frac{145 * 3600 * 1km}{1 * 1hour * 1000} = \frac{522000km}{1000hour}= 522 km/s.[/tex]

         Yes true

I can't come up with a good explanation.

Answer:

Lipid

Explanation:

I just took the test and I got it right

Cell membranes are primarily made of fatty acids which are the components of lipids. Thus, the correct option is D.

A cell membrane may be defined as a biological membrane that separates the interior of the cell with respect to the outer environment. It provides overall protection to the cell from external damage.

The Cell membrane is made up of a phospholipid bilayer. This bilayer is amphipathic in nature. The phosphate group forms a polar head while lipid forms a non-polar tail.

Due to undissolved in water, lipids deliver stability to the cell membrane against the water.

Therefore, Cell membranes are primarily made of fatty acids which are the components of lipids. Thus, the correct option is D.

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Answer: They are magnetic lines and these lines depict the invisible magnetic field around the magnet! Hope this helps I got it right on my quiz :)

Explanation:

Answer:

The last naturally occurring element to be discovered was francium (87) in 1939. Since that discovery, plutonium (94), neptunium (93) and astatine (85), which were initially created in the lab in 1940, have since been found in nature.

Explanation:

The -ium suffix is just a Latin suffix that creates abstract nouns, therefore, it's being used to construct scientific component names from their nomenclature origin, including such minerals (calcium from calx) or person names (gadolinium), and  further discussion can be defined as follows:

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Answer:d

Explanation:

Given :

Some statements.

To Find :

The SI units in each case.

Solution :

1) It is seconds which is denoted by seconds.

2) It is mass and units are kg. ( Not pounds because S.I unit is kg )

3) Since, we are talking about length is so its meter.

4) SI units of volume is given by meter³.

Hence, this is the required solution.

Answer:

no

Explanation:

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Answer:

Hi yes

Explanation:

Answer:

The distance between the beginning of the first P wave and the first S wave tells you how many seconds the waves are apart.

Explanation:

This number will be used to tell you how far your seismograph is from the epicenter of the earthquake.

Answer:

The distance between the beginning of the first P wave and the first S wave tells you how many seconds the waves are apart.

Explanation:

This number will be used to tell you how far your seismograph (an instrument that measures and records details of earthquakes, such as force and duration) is from the epicenter (the point on the earth's surface vertically above the focus of an earthquake) of the earthquake. Measure the distance between the first P wave and the first S wave.

Answer:

42.85 Celsius

Answer:

In a reactivity series, the most reactive element is placed at the top and the least reactive element at the bottom. More reactive metals have a greater tendency to lose electrons and form positive ions .

Explanation:

Yes ur well come

Answer:

7. ok

please mark me brainlistb

Answer:

I need an answer someone HELP MEEEEEEE

Answer:

A compound is a substance that has two or more chemical elements whose atoms are bonded together. These atoms are chemically bonded in specific ways and in detailed proportions, and the substances cannot be readily separated through simple physical means.

hope this helped :)

Answer:

A compound is a pure substance consisting of two or more elements which have been chemically combined. Elements have a specific ratio in a compound.

Explanation:

e.g water is a compound made up of hydrogen and oxygen.

According to law of conservation of matter , the mass of the trees got converted  fro one form of matter to another.

According to law of conservation of matter, it is evident that matter is neither created nor destroyed rather it is restored at the end of a chemical reaction .

Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of mass is widely used in field of chemistry, fluid dynamics.

Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Antoine Lavoisier in the year 1789.

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Answer:

yes, all the elements in group 14 can obtain a +4 or -4 ion charge

Explanation:

Answer:

Permeable.

Explanation:

Most sediments of a chalky quality are permeable.

Answer:

analyitical

Explanation:

Answer: Analytical chemistry

Explanation:I just finished this question