Name the components of an atom which determines each of the following
quantities
A. Mass of an atom
B. Charge of an atom​

Answer:

C

Explanation:

It just is, if you look online and conduct research you will see that compounds look just like number 3. It cannot be A or B.

Answer:

The correct option is C

Explanation:

The structural model of C₃H₈ is that of option C.

In Structural model which can also be known as structural formula, the atoms of a molecule or compound are identified by the location of chemical bonds that exists between them. A structural formula is seen to consist of symbols. In this case, the atoms are connected by short lines. These short lines actually represent their chemical bonds. Where one, two, or three lines that  connect each element that make up the compound stands for single, double, or triple bonds, respectively.

Answer:

C

Explanation:

Answer:

Thermal energy refers to several distinct physical concepts, such as the internal energy of a system; heat or sensible heat, which are defined as types of energy transfer; or for the characteristic energy of a degree of freedom in a thermal system, where is temperature and is the Boltzmann constant

Explanation:

Answer:

deep ............................

Answer:

( A Heart) fragile clueless of what love is then one day... somebody comes, somebody comes and you get a feeling a feeling of happiness a feeling of pure love not like any crush! Then one day... you lose them, you lose them and they are gone at first you feel cold like a piece of you just left the person that mad you feel this joy! You were just having another normal day but then you met then after that day you were happy but that one person! That one person made you So happy if you lost them you cant imagine how you could go what was life Before. so the second they leave it feels like your heart lost a piece that could only be filled with love! over the days your'e heart starts to feel numb and feel so lost you wonder and wonder. ( The heart)

Explanation

Answer:

Electromotive force or e.m.f is defined as the battery's energy per Coulomb of charge passing through it. like other measures of energy per charge emf has SI unit of volts , equivalent to joules per coulomb.

Answer:

A. Algae growth is high

Explanation:

Substances that contains high concentration of nitrates, phosphates etc add nutrients to the water body. This is because organisms like ALGAE consider these compounds nutrients needed for their growth and development. The process whereby these nutrients becomes excessive in a water body is referred to as EUTROPHICATION.

Eutrophication of a water body i.e excessive nutrients like nitrates in a water body like the North Carolina waters being described in this question will lead to rapid and excessive growth of algal species. This increase in algal growth can cause the water body to be low in oxygen content and ultimately become inhabitable by living organisms.

Answer:

Lithosphere

Explanation:

Answer:

Lithosphere

Explanation:

The Lithosphere is the outermost layer of the Earth of about 100km thick and it is a rigid layer that includes the brittle upper portion of the mantle and the crust. Lithosphere is the hard outer region which includes all of the crust and the uppermost mantle.

Answer:

its 150 hope this helps

Explanation:

Answer:

It goes the crust mantle outer core and inner core. The crust is what we are standing on it has dirt, rock, stone, the mantle it has lots of silicate rocks and magnesium. The outer core has liquid nickel and iron and the inner core has solid metals

Mantle and core layers are present underneath Earth's surface.

The land underneath Earth's surface has mantle, outer core and inner core. The surface of the earth is the crust which is solid and hard. This surface of earth becomes hard due to cooling of the surface with the help of environmental conditions.

Mantle layer of earth has high temperature than crust whereas the inner and outer core is more hotter than mantle where all the materials are present in liquid state so we can say that inside the earth mantle and core layers are present.

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Answer:

Every map is a representation of reality, thus a model in the broadest sense. Sometimes mapping is distinguished from modelling by stating that mapping is a simple representation of reality, while modelling is trying to cover more complexity in reality.

Explanation:

Answer:

319

Explanation:

The molecular mass of C3H18 can be found by adding up the molecular weights of carbon and hydrogen so, (12.01 x 3) For Carbon and (1.008x18) for hydrogen. You will find it is 54.174g/mol.

To find grams muliply g/mol by mols so 5.9 x 54.174= 319 i didnt see any errors with my math so maybe you clicked 8 by accident but i may just be wrong

Moles of Oxygen produced : 4.5 moles

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

The reaction coefficient shows the mole ratio of the reactants and products

Reaction

2KCIO₃ → 2KCl + 30₂

moles of KCIO₃ = 3

From equation, mol ratio of KCIO₃ : O₂ = 2 : 3, so mol O₂ :

[tex]\tt mol~O_2=\dfrac{3}{2}\times 3=4.5[/tex]

The number of grains of rice in the 40 mL sample : 880 grains

Given

from recorded data:

mass of 20 grains rice = 0.4 g

mass beaker = 29.5 g

mass beaker+rice=47.1 g

mass only rice = 17.5 g

Required

the number of grains of rice

Solution

Maybe if we use a digital scale with high resolution accuracy we can get the mass of 1 grain of rice

But we still use existing data

To determine the mass of rice in the beaker, we just need to find the difference between the mass of the beaker + rice - beaker, or we can set the scale to zero before we add rice to the beaker.

If we look at this difference, the mass of the rice in the beaker should be :

47.1-29.5 = 17.6 g

Since the data shows that 20 grains of rice mass 0.4 g, so 17.6 g of rice contains:

[tex]\tt 17.6~g\times \dfrac{20~grains}{0.4~g}=880~grains[/tex]

The transfer of electrons forms strong bonds between ions is the best

statement that describes ionic bond formation.

Ionic bond is also known as electrovalent bonding. It involves the transfer

of electrons from an element to another. This is done so as to enable the

elements achieve a stable configuration and formation of new compounds.

The ionic bonds formed are usually strong so as to prevent the elements

from losing their stable configuration.

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Answer:

Number of moles = 0.5 mol

3.011 ×10²³ atoms

Explanation:

Given data:

Mass of sulfur = 16 g

Number of moles = ?

Number of atoms = ?

Solution:

Number of moles of S:

Number of moles = mass/molar mass

Number of moles = 16 g/ 32 g/mol

Number of moles = 0.5 mol

Number of atoms:

1 mole contain 6.022×10²³ atoms

0.5 mol × 6.022×10²³ atoms / 1 mol

3.011 ×10²³ atoms

Answer:

Base

Explanation:

Answer:

physical

Explanation:

Answer:

Isotope

Explanation:

Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number.

Answer:

Number of moles = 2.72 mol

Explanation:

Given data:

Number of moles of H₃PO₄ present = ?

Molarity of solution = 18.1 M

Volume of solution = 150.0 mL (150/1000 = 0.15 L)

Solution:

Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.

Formula:

Molarity = number of moles of solute / L of solution

By putting values,

18.1 M = number of moles / 0.15 L

Number of miles = 18.1 M × 0.15 L

Number of moles = 2.72 mol

Answer:

Convection currents are flowing fluid that is moving because there is a temperature or density difference within the material.

Because particles within a solid are fixed in place, convection currents are seen only in gases and liquids. A temperature difference leads to an energy transfer from an area of higher energy to one of lower energy.

Answer:

strontium and barium

Explanation:

Answer:

Calcium is a chemical element with the symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to its heavier homologues strontium and barium.

Explanation:

The concentration (molarity) of [H₃O⁺]=0.776 M

We balance the reaction first so that the number of atoms and the charge of the product and reactant are the same

Reaction(balanced) :

H₂S⇒2H⁺+S²⁻ (eq 1)

2H⁺+6H₂O⇒4H₃O⁺+2OH⁻ (eq 2)

mass of H₂S=0.33 g

mol H₂S (MW=34 g/mol) :

[tex]\tt mol=\dfrac{0.33}{34}=0.0097[/tex]

From equation 1, mol H⁺ = 2 x mol H₂S , so mol H⁺ =

[tex]\tt 2\times 0.0097=0.0194[/tex]

From equation 2, mol H₃O⁺ = 2 x mol H⁺(4 : 2) , so mol H₃O⁺ :

[tex]\tt 2\times 0.0194=0.0388[/tex]

Or simply mol H₃O⁺ = 4 x mol H₂S = 4 x 0.0097 = 0.0388

the molarity of [H₃O⁺] =

[tex]\tt M=\dfrac{n}{V}=\dfrac{0.0388}{0.05~L(50~ml)}=0.776[/tex]

Answer:

C) Decreasing the concentration would decrease the reaction rate.

Explanation:

A.P.E.X

Answer:

Dude I need the answers so i can help you!

Explanation:

Give me the answers plz