help me please?
I need to pass this tomorrow ​

Answer:

1 taza = 250 ml eso creo

Explanation: Eso creo jejejejeje.

Answer:

the most common oxidation no.of manganese is + 2 + 3 + 4 + 6 + 7

Explanation:

Answer:Mixture comprises two or three compounds that aren't fused chemically. They have no physical interactions

and A solution contains two substances that are chemically mixed to form a new compound.

Answer:

Metals are an excellent conductor of electricity and heat because the atoms in the metals form a matrix through which outer electrons can move freely. Instead of orbiting their respective atoms, they form a sea of electrons that surround the positive nuclei of the interacting metal ions.

Explanation:

Atoms that have the same number of valence electrons (belong to the same group of the periodic table) have similar properties. Hydrogen and Helium are exceptions.  The first shell is filled with 2 electrons which makes Helium a Noble Gas and Hydrogen is a gas thus not a Group 1 metal.

The given atom has 2 valence electrons (a group 2 element).

∴ the atoms with similar properties to that of the given atom would also have 2 valence electrons:

I - filled 1st shell thus noble gas ❌

II - 3 valence electrons ❌

III - 4 valence electrons ❌

IV - 2 valence electrons ✅

Checking my answer:

If we check the periodic table, the atom given is Be (Alkali Earth Metal)

I is He  (Noble Gas)

II is Bo (Group 13)

III is C (Group 14)

IV is Magnesium (Alkali Earth Metal)

Answer:

There is no hydrogen in the first half reaction

Answer:

the value of water is

6000

Answer:

600 or 6000 I'm not sure

One of the ions has a positive charge (called a cation) and the other has a negative charge (termed anion). Salt is an ionic compound, consisting of a crystal, lattice structure of the two ions Na+ and Cl-.

The rock layer which marks the end of the dinosaurs is: C. KT Boundary layer.

A rock can be defined as a solid material containing minerals, which are naturally formed through the following processes:

Basically, a rock comprises of various layers which marks the age of both living and nonliving organisms, these includes:

I. Burgess Shale layer.

II. Mesozoic Layer.

III. KT Boundary layer.

Dinosaurs refers to a taxa of carnivorous or herbivorous archosaurian reptiles that are often very large and belongs to the Mesozoic era.

Basically, the Mesozoic Layer is a rock layer which marks the period when dinosaurs were still roaming the earth some million years ago.

However, dinosaurs went into extinction at the KT Boundary layer and as such it is a rock layer which marks the end of the dinosaurs.

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Answer:

cellular respiration

Explanation:

Summary. Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP

Answer:

Penta hydrogen chlorine

Explanation:

they are ploy atomic elements

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The Correct choice is : C

Athlete's foot is one of the common disease caused by a fungus !

Answer:

People with a nasal voice can sound as though they're speaking through a clogged-up or runny nose, which are both possible causes. Your speaking voice is created when air leaves your lungs and flows upward through your vocal cords and throat into your mouth. The resulting sound quality is called resonance. (i hope i helped ya )

Explanation:

Answer:

The are mainly three kinds of subatomic particles in an atom:

1) Electrons (negatively charged particles)

2) Protons (positively charged particles)

3) Neutrons (neutral particles)

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

Explanation:

creating geographic maps of continents and countries

Jonah is filling out paperwork for insurance and in the “applicant occupation” space he writes cartographer so, his job is creating geographic maps of continents and countries, hence option C is correct.

A person who draw and produce a map is a cartographer. Cartography is  the art and science of graphically representing a geographical area, usually on a flat surface such as a map or chart.

This may involve the superimposition of political, cultural, or other nongeographical divisions onto the representation of a geographical area.

A person whose work is making maps or charts is a cartographer.   An example of a cartographer is Claudius Ptolemy and his book Geographica . Anaximander was the first  ancient Greeks to draw the map of known world.

Hence, cartographer creates the geographical maps.

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Answer:

g(x) has the greater slope

Answer:

over land is the correct ☑ answer plz mark me as brainliest

have a great day ahead

Answer:The mass of scheelite having one million oxygen atoms is. Explanation: We are given: Number of oxygen atoms = (million atoms). According to mole .

Explanation:

It is important for scientists to have a standard system of naming compounds and other chemical procedures to avoid ambiguity in the nomenclature of chemical compounds and procedures.

Chemicals may be referred to by various names among various scientists in different places. These different names creates confusion when scientists present their discoveries to other scientists outside their locality.

Therefore, it is imperative that a unified and standard system of nomenclature should be devised so that all scientists can have the same name for compounds. This reduces ambiguity associated with the nomenclature of chemical substances and procedure.

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Answer:

Explanation:

Pick up a soft drink. The CocaCola I have has 8 ingredients and is a mixture. Mind you, it is hard to tell what kind of sugar is present because three are listed.

It certainly has more than 2 ingredients.

Answer: k = 5

Explanation:

k = the number of units that f(x) was moved up to get g(x).

We can see from the graph that f(x) was moved five units up.

So k = 5.

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Elements in the same group have similar properties because their electron configurations are similar. In particular they have the same number of valence electrons, which are the in the outermost (highest energy) s and p orbitals.

Chlorine reacts in a similar way to bromine as they belong to same group of periodic table.

Reactivity in chemistry is indeed a measurement of how easily a material reacts chemically. The chemical may react alone or in conjunction with neighboring atoms as well as compounds, and in either case, energy will typically be released. The most reactive substances and elements have the potential to spontaneously or explosively ignite.

Since bromine and chlorine electron configurations are similar, elements of the same group exhibit comparable characteristics. The amount of valence electrons, that are located inside this outermost (highest energy) p and s orbitals is particularly similar.

Therefore, chlorine reacts in a similar way to bromine as they belong to same group of periodic table.

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The conversion of 2 - butanol to 2 - nitrobutane​ involves conversion of  2 butanol to 2 - bromobutane and subsequently to 2 - nitrobutane.

In order to convert 2 - butanol to 2 - nitrobutane​, an SN2 reaction is first carried out in which 2 - butanol  is converted to 2 - bromobutane. This reaction proceeds with inversion of configuration at the chiral carbon as expected.

This product is subsequently reacted with silver nitrite in ethanol to yield  2 - nitrobutane​ along side silver bromide. Some alkyl nitrite is also produced as a by product. The components of the mixture are separated by fractional distillation. The scheme of the reaction is shown in the image attached to this answer. This reaction is only applied to primary and secondary alkyl halides.

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Explanation:

[tex]pressure \: \alpha \frac{1}{volume} [/tex]

P1V1 = P2V2

205 (4) = P2 (12)

[tex]P2 = \frac{205 \times 4}{12} [/tex]

P2= 820/12

P2= 68.3 KPa

The pressure in the container after the expanssion of gas, if the temperature remains constant is 68.3 kPa.

According to the Boyle's Law, at constant temperature pressure of any gas is inversely proportional to the volume of the gas, i.e.

P ∝ 1/V

Required equation for the calculation of the pressure is:

P₁V₁ = P₂V₂, where

P₁ = initial pressure = 205 kPa

V₁ = initial volume = 4 L

P₂ = final pressure = ?

V₂ = final volume = 12 L

On putting all these values on the above equation, we get

P₂ = (205)(4) / (12) = 68.3 kPa

Hence resultant pressure is 68.3 kPa.

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Answer:

color is there right answer for this question please make me a brainliest and follow me please please please please

Answer:

False

Fossil fuels add carbon dioxide to the atmosphere not oxygen

Answer:

Two Electrons.

Explanation:

Helium is the second element of the periodic table and thus is an atom with two protons in the nucleus. Most Helium atoms have two neutrons in addition to the protons. In its neutral state, Helium has two electrons in orbit about the nucleus. Model of a helium atom's nucleus with two protons and two neutrons.

Hope This Helps!

Answer:

The answer to your question is two electrons.

Explanation:

In its neutral state, Helium has two electrons in orbit about the nucleus.

Answer:

6.5 – 8.5

Explanation:

Answer:

i.Electron should be 19,Proton should also be 19,Neutron should be 20

ii.The outer electron shell should have 9 electrons

iii.Electron Configuration [Ar] 4s¹