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The ratio of metal cationic (+) atom to nonmetal anionic (-) atom in the compound is 1:2.

The term electron configuration shows the arrangement of electrons in an atom. We have the configurations of the atoms as follows;

magnesium - 1s22s22p63s2

bromine - 1s22s22p63s23p64s23d104p5

We can see that the catio is Mg^2+ and the anioin is Br^- hence  the ratio of metal cationic (+) atom to nonmetal anionic (-) atom in the compound is 1:2.

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Answer:

Are molecules atoms that are chemically bonded together?

Image result for Molecules are chemically bonded atoms that work as a unit. Should the same kind of molecule be made up of the same kind of elements? Explain your answer

If this interaction is such that the total energy of the system is lowered, then the atoms bond together to form a molecule. Thus, from a structural point of view, a molecule consists of an aggregation of atoms held together by valence forces. Diatomic molecules contain two atoms that are chemically bonded.

Explanation:

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Answer:

No.

Explanation:

No organism can detect X-rays or radio waves

Answer:

no

Explanation:

Many animals, including vampire bats and certain fish and snake species, are able to sense infrared radiation, but this only goes up to wavelengths of 1mm. Longer wavelengths carry much less energy and can't be detected without some kind of resonator to amplify the signal.

Glyphosphate, lindane, 2,4-d, chlordane are organic compound that have chlorine in common.

Organic compound are group of chemical substance that have carbon and hydrogen atoms in which the bonds are covalently linked together.

Therefore, Glyphosphate, lindane, 2,4-d, chlordane are organic compound that have chlorine in common and these chemicals are use as herbicides that is kill weeds, or to kill insects or pests because of chlorine present in it.

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Answer: 1.36 atm

Explanation:

Answer:

Innate, or nonspecific, immunity is the defense system with which you were born. It protects you against all antigens. Innate immunity involves barriers that keep harmful materials from entering your body.

Answer:

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The neutral phase of a ph scale is 7.

A ph higher than 7 indicates that the substance is basic in nature.

14 is the most basic and 8 is the least basic

A ph lower than 7 indicates the substance is acidic in nature.

1 is the most acidic and 6 is the least acidic.

The work (newton-metres) the dock worker have to exert to lift the boat to 5 m in air is 6506.85 Nm

This is simply defined as the product of force and distance moved in the direction of the force. Mathematically, it can be expressed as

Workdone (Wd) = force (F) × distance (d)

Wd = Fd

Output work = Fd

Output work = 950 × 5

Output work = 4750 Nm

Efficiency = (output / input) × 100

73% = 4750 / input

0.73 = 4750 / input

Cross multiply

0.73 × input = 4750

Divide both side by 0.73

Input work = 4750 / 0.73

Input work = 6506.85 Nm

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Answer:

0.271J/g°C

Explanation:

mass of iron=93.3g

∆°C=65.58

mass of water=75g

C of water=4.184

∆°C=22.4-16.95=5.29°C

mc∆°C of iron = mc∆°C of water

93.3×C×5.29=75×4.184×5.29

C=75×4.185×5.29/93.3×65.58

C=0.271J/g°C

Answer:

A. Enzymes

Explanation:

Enzymes are in our saliva and tears. They help break down pathogens and the cell wall of bacteria.

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Muffin~

Answer:

A. Enzymes.

Explanation:

Enzymes break down things and they are in both our saliva and tears.

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.-.

To prepare 0.250 M solution, the 0.0667 mol of KCl should be diluted up to 266.8mL

From the question,

We are to determine to what volume the KCl should be diluted, in order to prepare 0.250 M solution

From the formula,

Numer of  moles = Concentration × Volume

Then, we can write that

[tex]Volume= \frac{Number\ of\ moles}{Concentration }[/tex]

From the given information,

Number of moles = 0.0667 mole

Concentration = 0.250 M

Then,

[tex]Volume = \frac{0.0667}{0.250}[/tex]

Volume = 0.2668 L

Volume = 266.8 mL

Hence, to prepare 0.250 M solution, the 0.0667 mol of KCl should be diluted up to 266.8mL

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Russian chemist Dmitri Mendeleev

Answer:

Sodium + water --› Sodium hydroxide + hydrogen gas

Copper carbonate + sulphuric acid --› Copper sulphate + water + carbondioxide

Sulphur + Oxygen --› Sulphur dioxide

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Answer:

76.210kPa

Explanation:

[tex] \frac{p1v1}{t1} = \frac{p2v2}{t2} \\ p1 = \frac{p2v2t1}{v1t1} \\ p1 = \frac{101.325 \times 200 \times 308}{300 \times 273} \\ p1 = 76.210kpa[/tex]

Answer:

it is charles's law

Explanation:

volume does matter with pressure

Answer:

Fatty acids and glycerol.

Explanation:

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(The process is called lipolysis by the way)

Answer:

How do one confess feelings to her if he is introvert?

A carbocation is a carbon atom that bears a positive charge. The most stable carbocation here must be a secondary carbocation .

A carbocation is a carbon atom that bears a positive charge. These species pften pccur as intermediates in a chemical reaction and can be detercted spectroscopically.

The most stable carbocation here must be a secondary carbocation hence, the structural formula for the more stable carbocation intermediate formed in the reaction is shown in the image attached.

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Answer:

B

Explanation:

The particles move freely