Which element has 60 protons?

Answer:

12.21 x 10⁻¹ m

Explanation:

Given:

(2.22 x 10⁶cm) x (5.5 x 10⁻⁵m)

Find:

Solution;

Computation:

(2.22 x 10⁶cm) x (5.5 x 10⁻⁵m)

[2.22 x (10⁶/100)m] x (5.5 x 10⁻⁵m)

[2.22 x 10⁴m] x (5.5 x 10⁻⁵m)

12.21 x 10⁻¹ m

Answer:

its b check it and that's it u know

Answer:

I not sure if this is right but maybe b since its particles is more spread out?

mmg mmñm

Explanation:

no lo seeee123456789

Answer:

rock star

Explanation:

Answer:

Elements that are in the same period have chemical properties that are not all that similar. Consider the first two members of period 3: sodium (Na) and magnesium (Mg). In reactions, they both tend to lose electrons (after all, they are metals), but sodium loses one electron, while magnesium loses two.

Explanation:

(Hoped this helped! :D)

Answer:

Farther; longer.

Explanation:

In the early nineties When the research on solar system first started it was found out that the solar system has 9 planets which are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. Pluto which is considered as the number 9 of the planets in the solar system has been removed in the year 2006 and labelled as a "dwarf planet'' hence, Neptune is considered as the farthest planet from the Sun.

The farther the planets are from the sun, the longer it will take them to orbit round the sun. For instance, it only takes around 87.97 days for mercury(first planet nearer to the sun) to orbit round the sun, while it takes the earth (third planet nearer to the sun) 365 1/4 days to orbit round the sun.

Answer:

Atoms are neutral. They contain the same number of protons and electrons. An ion is an electrically charged particle produced by either removing electrons from a neutral atom to give a positive ion or adding electrons to a neutral atom to give a negative ion.

Explanation:

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Answer: [Kr] 5s24d10 is the element Cadmium, Cd. It has 48 electrons.

Answer:

Explanation:

The is barium and oxygen in here

barium+ oxygen-> barium oxide

barium + oxygen ->  barium peroxide

Answer:

Acidity and alkalinity are measured using a pH scale, for which 7.0 is neutral. The lower a substance's pH (less than 7), the more acidic it is; the higher a substance's pH (greater than 7), the more alkaline it is. Average rain has a pH of about 5.6; it is slightly acidic because carbon dioxide (CO2) dissolves into it, forming weak carbonic acid. Acid rain usually has a pH between 4.2 and 4.4. The most common nitrogen-related compounds emitted into the air by human activities are nitrogen oxides. Ammonia is another nitrogen compound emitted into the atmosphere, primarily from agricultural activities and fossil fuels. Most of the nitrogen oxides released in the U.S. due to human activity are from the burning of fossil fuels associated with transportation and industry.  

Explanation:

Answer: D: You will have excess gas for this reaction

Explanation: I just took the test

Answer:

the answeer is c.

Explanation:

Answer:

2Mg+O2=2MgO

balanced equation

hope it helps.

Answer:

Oroduct is mgo and it is balanced equation

Because both MG and o² have valence 2

Answer:

The answer to this question is 2.

The average kinetic energies of gas molecules are the same, but the smaller or lighter molecules have more velocities. Therefore, option (B) is correct.

The average kinetic energy of a molecule can be described as:

[tex]{\displaystyle K.E.=\frac{3}{2}kT[/tex]

Where T is temperature (K) and k is Boltzmann constant.

All molecules of a gas are identical in mass and size but they differ from gas to gas. The gas molecules are separated by large distances so that the real volume of the molecules is negligible as compared to the total volume.

The force of attraction between molecules is negligible and molecules are supposed to be moving in different directions with different velocities. The collision between gas molecules is perfectly elastic so that no energy is wasted during a collision.

Since gas molecules are moving at different velocities ao they possess different kinetic energies. The average kinetic energy is directly proportional to the temperature (Kelvin).

Learn more about average kinetic energy, here:

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Answer: 2:2 but if simplified it’s 1:1

Explanation:

Answer:

3.81 g NH3

Explanation:

friends with chemist

Answer:

Since asexual reproduction essentially makes clones of the parent bacterium, the daughter bacterium will behave and react exactly the same as the parent.

Answer:

Chicken noodle soup would be considered a mixture.

Answer:

Explanation:

Energy is absorbed to break bonds. Bond-breaking is an endothermic process. Energy is released when new bonds form. Bond-making is an exothermic process.

BRAINLY PLZ

Endothermic process occurs in order to break the bonds in the hydrogen molecules, so it can react with O₂ to form H₂O.

Exothermic reaction is a reaction that is chemical in nature and in which the energy is released in form of heat, electricity or light. Energy is released when the new bonds are formed and this bond making process is an exothermic process.

Endothermic reaction is a chemical reaction that absorbs heat from the surroundings. Energy is absorbed when the bonds breaks and this bond breaking process is endothermic process.

According to question in order to break the bonds in the hydrogen molecule is endothermic process. Energy is absorbed when bonds breaks.

Thus, from the above conclusion we can say that Endothermic process occurs in order to break the bonds in the hydrogen molecules, so it can react with O₂ to form H₂O.

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The element does not belong to the same period as the others is tellurium (Te).

It refers to the chemical element that should be symboled by Te and here the atomic number should be 52. It is shown as the rare, silver-white metalloid. It should be related to the selenium and sulfur that are considered to be the chalcogens. It should be in the native form with respect to the elemental crystals.

Therefore, The element does not belong to the same period as the others is tellurium (Te).

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Answer:

Tin(IV) oxide, also known as stannic oxide, is the inorganic compound with the formula SnO₂. The mineral form of SnO₂ is called cassiterite, and this is the main ore of tin. With many other names, this oxide of tin is an important material in tin chemistry. It is a colourless, diamagnetic, amphoteric solid.

Formula: SnO₂

Molar mass: 150.71 g/mol

Melting point: 1,630 °C

Density: 6.95 g/cm³

Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al₂O₃. It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium(III) oxide.

Formula: Al₂O₃

Molar mass: 101.96 g/mol

Melting point: 2,072 °C

Density: 3.95 g/cm³

Boiling point: 2,977 °C

ChemSpider ID: 14086

ChemSpider ID: 26988

Silver sulfide is an inorganic compound with the formula Ag ₂S. A dense black solid, it is the only sulfide of silver. It is useful as a photosensitizer in photography. It constitutes the tarnish that forms over time on silverware and other silver objects.

Formula: Ag2S

Molar mass: 247.8 g/mol

Density: 7.23 g/cm³

ChemSpider ID: 145878

Copper(II) sulfate, also known as copper sulphate, are the inorganic compounds with the chemical formula CuSO₄ₓ, where x can range from 0 to 5. The pentahydrate is the most common form. Older names for this compound include blue vitriol, bluestone, vitriol of copper, and Roman vitriol.

Formula: CuSO4

IUPAC ID: Copper(II) sulfate

Molar mass: 159.609 g/mol

Density: 3.6 g/cm³

Melting point: 110 °C

Soluble in: Water

Potassium carbonate is the inorganic compound with the formula K₂CO₃. It is a white salt, which is soluble in water. It is deliquescent, often appearing as a damp or wet solid. Potassium carbonate is mainly used in the production of soap and glass.

Formula: K2CO3

Molar mass: 138.205 g/mol

IUPAC ID: Potassium carbonate

Density: 2.43 g/cm³

Melting point: 891 °C

Soluble in: Water

Explanation:

Hope it is helpful....

Answer:

26.981538 just looked at it.

Firstly ALKANES FORMULA IS CnH2n+2

C4H10 Butane

C5H12 Pentane

C7H16 Hectane

C8H18 Octane

C9H20 Nonane

Answer: Because sulfur is directly below oxygen in the periodic table, these elements have similar electron configurations. As a result, sulfur forms many compounds that are analogs of oxygen compounds, as shown in the table below. ... O=O. double bonds are much stronger than S=S double bonds.

Answer:

the answer I believe is C

Answer:

The last one

Explanation:

A hormone travels through the circulatory system to deliver a signal. A white blood cell produces antibodies. A chemical signal is transmitted between the cells of two organisms. A molecule released from one cell signals one near, but not directly adjacent.

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