Look at the diagram below.
(+
When this atom becomes an ion, it will
(gain, lose)
electrons. The charge of this ion will be

1 mole of carbon contains 6.02*(10^23) atoms of carbon

Answer:

It's made of salt

Explanation:

The recipe has salt as an ingredient

Answer:

playdoh is literally made of salt. thats why it tastes salty

Explanation:

Answer:

199.985 or 200 g NaOH

Explanation:

Not sure if you want an explanation or not but take the 5 mol/ 1 mol NaOH and multiply by molar mass of NaOH which is 39.997/40.

Answer:

water pulling a compound apart and then surrounding the broken pieces/ions (this is what dissolving is)

Explanation:

As we know, water is a polar solvent. What this means is that water can effectively interact with ions in an ionic substance owing to its large dipole moment.

Now, when an ionic substance is dissolved in water, the positive end in water pulls hard on the negative ion of the ionic substance while the negative end in water pulls hard on the positive ion of the ionic substance.

The ionic substance is eventually pulled apart and surrounded by water molecules. This is how an ionic substance is dissolved in water.

Answer:

Fifth trust me

Explanation:

Answer: a compound is a substance that is made up of more than one type of atoms bonded together, mixtures are a mix of multiple elements or compounds which haven't bonded together.  

Explanation:

A balanced chemical equation for this reaction :

FeS(s)+2HCl(aq)→FeCl2(aq)+ H2S(g)

Given

Word equation

Required

Balanced equation

Solution

The chemical equation can be expressed in terms of:

Skeleton equation

FeS(s)+ HCl(aq) --> FeCl2 (aq) + H2S (g)

Balanced equation

FeS(s)+2HCl(aq)→FeCl2(aq)+ H2S(g)

Answer:

Explanation:

There are seven periods in the periodic table, with each one beginning at the far left. A new period begins when a new principal energy level begins filling with electrons. Period 1 has only two elements (hydrogen and helium), while periods 2 and 3 have 8 elements.

Answer: a neutral

Explanation: it’s an neutral because it’s all alone and there’s no chemicals

Answer:

Sodium (Na) has more protons than carbon (C).

hope that helps!

Answer:

See explanation

Explanation:

We know that in the presence of strong oxidizing agents such as permanganate , aldehydes are oxidized. This oxidation is often accompanied by a colour change.

The colour change in the permanganate oxidation of benzaldehyde is caused by the inorganic permangate. The colour changes from purple to colourless because Mn^7+ is reduced to Mn^2+.

The benzaldehyde is readily oxidized to benzoic acid in the presence of permanganate.

Answer:

In this activity, we will pretend that nuts, washers and bolts are 3 kinds of elements. A single washer represents an atom of WASHER. A single nut represents an atom of NUT and a single bolt represents an atom of BOLT. Atoms can be put together to form compounds.

Answer:

compound its that easy well i gotta go

Answer: In the Nitrogen family

Explanation:

Other elements in the family are: phosphorus, arsenic, antimony, and bismuth.

Answer:

5A

Explanation:

Answer: The empirical formula is [tex]MgSO_3[/tex]

Explanation:

Mass of Mg= 46.6 g

Mass of S= 61.4 g

Mass of O = 92.0 g

Step 1 : convert given masses into moles.

Moles of Mg =[tex]\frac{\text{ given mass of Mg}}{\text{ molar mass of Mg}}= \frac{46.6g}{24g/mole}=1.942moles[/tex]

Moles of S =[tex]\frac{\text{ given mass of S}}{\text{ molar mass of S}}= \frac{61.4g}{32g/mole}=1.918moles[/tex]

Moles of O =[tex]\frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{92.0g}{16g/mole}=5.75moles[/tex]

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For Mg = [tex]\frac{1.942}{1.918}=[/tex]

For S= [tex]\frac{1.918}{1.918}=1[/tex]

For O =[tex]\frac{5.75}{1.918}=3[/tex]

The ratio of Mg: S: O = 1: 1: 3

Hence the empirical formula is [tex]MgSO_3[/tex]

Answer:

The answer is (c) Zn(No3)2

Explanation:

Because we know the cation of zinc is+2 and whereas nitrate is anion, -1.

Answer:

uhhhhh ik there are about 45,000 to 69,000 left in the wild, but a healthey number in one exhibit say, at a zoo or sum would be likeee 7 t0 8

Explanation:

if this wasnt what u were asking, srry lol, u werent specific

Explanation:

Ionic Compounds: These are compounds that contain ionic bonds. Generally, they are compounds that consists of a metal bonded to a nonmetal. Examples includes;

- CaO

- AgCl

- KCl

- CaI₂

- AgNO₃

- KClO₃

Molecules: They typically contain the covalent bonds. Generally, they are non metals bonded to each other.

Examples Includes;

- H₂

- C₂H₄

- N₂

- NH₃

- Cl₂

- I₂

Answer:

Math like Science is Math combined with the calculations and all that stuff so

Explanation:

Scientific methodology includes the following: Objective observation: Measurement and data (possibly although not necessarily using mathematics as a tool)

Answer:

[tex]3.5[/tex] pill need to taken for completing dosage of [tex]875[/tex] mg

Explanation:

Total dosage of medicine to be taken in a day

[tex]= 2 * 875 \\= 1750[/tex]mg

Total weight of one pill [tex]= 250[/tex] mg

Number of pills required is equal to total dosage of medicine divided by the weight of one pill.

Hence,

Number of pills

[tex]= \frac{875}{250} \\= \frac{175}{50} \\= \frac{35}{10} \\= 3.5[/tex]

Oxidation half equation; 2Fe^2+ ----> 2Fe^3+ + 6e

Reduction half equation; 3Cu^2+  + 6e ---->3Cu

An oxidation-reduction (redox) reaction is a type of chemical reaction that involves the transfer of electrons between two species. Oxidation refers to the loss of electrons by a substance, while reduction refers to the gain of electrons by a substance.

Redox reactions are important in many chemical and biological processes, such as cellular respiration, photosynthesis, corrosion, and combustion. They can also be used in industrial processes, such as electroplating, battery operation, and chemical synthesis.

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Answer: 3 elements

Explanation:

They are

K for Potassium, C for Calcium and O for Oxygen

Answer:

the formula is M = m/n

Explanation:

M = m/n is the molar mass equals the mass of the substance divided by the number of moles of a substance

Answer:

100.93 g/mol

Explantion:

Answer:

In a chemical formula, the elements in a compound are represented by their chemical symbols, and the ratio of different elements is represented by subscripts.

Explanation:

Answer:

True

Explanation:

Both work because an element would be pure and compounds can be split into elements. This will work unless the substance isnt chemcially pure, but in this case it is so the answer would be true.

Explanation:

Aqueous solutions of acids are electrolytes, meaning that they conduct electrical current.

Acids have a sour taste.

Acids change the color of certain acid-base indicates.

Acids react with active metals to yield hydrogen gas.

Acids react with bases to produce a salt compound and water.

Answer:

D.) electron spin

Each sublevel is labeled by its principal energy level and sublevel. Electrons are indicated by arrows inside of the circles. An arrow pointing upwards indicates one spin direction, while a downward pointing arrow indicates the other direction

What is the percent by mass of calcium in calcium carbonate, CaCO3? (Molar mass of CaCO3 = 100.09 g/mol)

Answer: 40.04 percent

The percent by mass of calcium in calcium carbonate ([tex]CaCO_{3}[/tex]) is approximately 40.04%.

To calculate the percent by mass of calcium in calcium carbonate ([tex]CaCO_{3}[/tex]), we need to determine the molar mass of calcium (Ca) and the molar mass of calcium carbonate ([tex]CaCO_{3}[/tex]), and then use the following formula:

Percent by mass of calcium = (Molar mass of calcium / Molar mass of calcium carbonate) x 100

Given:

Molar mass of [tex]CaCO_{3}[/tex] = 100.09 g/mol

Now, let's calculate the molar mass of calcium (Ca):

The molar mass of calcium (Ca) is 40.08 g/mol.

Plugging in the values into the formula, we get:

Percent by mass of calcium = (40.08 g/mol / 100.09 g/mol) x 100

                         = 0.4004 x 100

                         = 40.04%

Therefore, the percent by mass of calcium in calcium carbonate ([tex]CaCO_{3}[/tex]) is approximately 40.04%.

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The first step of carbon cycle is animals are breaking down organic molecules and releasing carbon dioxide into the atmosphere.

Carbon cycle completes into four steps: photosynthesis, decomposition, respiration, and combustion.

In the first step, carbon enter the environment by respiration, and in the second step, carbon dioxide is consumed by plants.

Thus, the correct option is B.

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Answer:

Because it is made up of different minerals which are chemically combined.

Explanation: