Which graph shows acceleration?

Graph A and B both show acceleration.

Graph B shows acceleration, but Graph A does not.

Neither graph shows acceleration. They both show velocity.

Graph A shows acceleration, but Graph B does not.

Answer:

Graham's law of effusion was formulated by Scottish physical chemist Thomas Graham in 1848. Graham found experimentally that the rate of effusion of a gas is inversely proportional to the square root of the mass of its particles. This formula can be written as: , where: Rate₁ is the rate of effusion for the first gas.

Explanation:

r1 = rate of effusion for gas 1

r2 = rate of effusion for gas 2

M1 = molar mass of gas 1

M2 = molar mass of gas 2

Answer:

[tex]C_2H_6[/tex]

Explanation:

Hello.

In this case, we can see that the mass of carbon of the unknown compound comes from the yielded mass of carbon dioxide, thus, we compute the moles of carbon as follows:

[tex]m_C=10.2gCO_2*\frac{1molCO_2}{44gCO_2}*\frac{1mol C}{1molCO_2}=0.232 molC[/tex]

Moreover, the mass of hydrogen comes from the yielded water, therefore we can also compute the moles of water:

[tex]m_H=6.3gH_2O*\frac{1molH_2O}{18gH_2O}*\frac{2molH_2}{1molH_2O} =0.7molH[/tex]

Then, to find the subscripts in the empirical formula, we divide by the moles of carbon as the smallest:

[tex]C:\frac{0.232}{0.232}=1\\ \\H:\frac{0.7}{0.232}=3[/tex]

Whose molar mass is:

[tex]M_{CH_3}=12+1*3=15g/mol[/tex]

Thus, the ratio of the molecular formula to the empirical formula is:

[tex]\frac{30}{15}=2[/tex]

Therefore, the molecular formula is twice the empirical formula:

[tex]C_2H_6[/tex]

Which is actually ethane.

Regards.

Answer:

The properties of matter include any traits that can be measured, such as an object's density, color, mass, volume, length, malleability, melting point, hardness, odor, temperature, and more. We need to study all these traits since every single object around us, including us, is made of matter. Without matter we wouldn't exist; it would be infinite darkness everywhere.

Answer:

You included no options however the elements with 6 Valence electrons are;

Valence electrons refer to the electrons an element has on its outermost shell. The number of these electrons determines the charge that an electron will carry as it seeks stability.

It also determines which group the element will be in in the Periodic table. Elements with 1 valence electron for instance will be in Group 1 and elements in Group 16 will have 6 valence electrons.

Answer:

Silver does have a mass of 107.87.

Explanation:

Answer:

s=d/t

s=speed

d=distance traveled

t=time elapsed

Answer:

oxygen

Explanation:

periodic table

Answer:

C02+2CL2 = O2+CCL4​

Explanation:

the co2 gave its carbon atom to the CL2 + CCL4​

Answer:

B?

Explanation:

Answer: A = 1560

               B = 1.6

Explanation: brainlest please

Pouring cold water into your hot coffee is convection. Therefore, option B is correct.

Convection can be explained as the transfer of heat from one place to another because of the movement of fluid. Convective heat transfer can be defined as the combined processes of conduction and advection.

Gases as well as liquids are not good conductors of heat under normal pressure and temperature conditions, but they can easily transfer heat from one region to another region.

Convection takes place through diffusion but does not take place in solids substances, as there is no movement of constituent particles takes place. The diffusion of heat energy that occurs in solids is called thermal conduction.

Heat energy transfer that takes place between a surface and a liquid when they come in contact with the surface is called convection heat transfer.  Therefore, heat transfer takes place through convection when pouring cold water into hot coffee.

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Answer: The answer is option C. (It balances the equation, ensuring each side of the reaction has an equal number of atoms.)

Explanation:

Answer:

Although it is possible to have more than one state, it is also possible to have only one state.

Explanation:

The mistake Dominic made was stating that "although it is possible to have more than one state, it is also possible to have only one state."

Mixtures are impure substances with the following properties:

They have an indefinite composition

Their constituents retains their identities.

Constituents react differently to changed conditions.

They can easily be separated into constituents by physical methods.

There are two types of mixtures based on the number of phases coexisting:

Homogeneous mixtures have their constituents existing in just one phase.

Heterogeneous mixtures exists in at least two different phases.

Explanation:

Answer:

its b.

Explanation:

Answer:

C₁₂H₂₂O₁₁ + H₂O     →    C₅H₁₂O₆ + C₆H₁₂O₆

Explanation:

Chemical equation:

C₁₂H₂₂O₁₁ + H₂O     →    C₅H₁₂O₆ + C₆H₁₂O₆

Source of sucrose:

Sucrose is present in roots of plants and also in fruits. It is storage form of energy. Some insects and bacteria use sucrose as main food. Best example is honeybee which collect sucrose and convert it into honey.

Monomers of sucrose and hydrolysis:

Sucrose consist of monomers glucose and fructose which are join together through glycosidic bond. Hydrolysis break the sucrose molecule into glucose and fructose. In hydrolysis glycosidic bond is break which convert the sucrose into glucose and fructose. Hydrolysis is slow process but this reaction is catalyze by enzyme. The enzyme invertase catalyze this reaction.

The given reaction also completely follow the law of conservation of mass. There are equal number of atoms of elements on both side of chemical equation thus mass remain conserved.

Scientists use a two-name system called a Binomial Naming System. Scientists name animals and plants using the system that describes the genus and species of the organism. The first word is the genus and the second is the species.

Answer:

0.639

Explanation:

Answer:

Explanation: Geography · College. +5 pts ... Answer. 1.9/5. 16. Girly1004. Ambitious. 1 answer. 4 people helped ... are places that show evidence of a massive ice sheet that existed around 250 million years ago.

Answer:

HOPE THIS HELPED :) good luck! ❤️

Explanation:

A reactant is a substance that is present at the start of a chemical reaction. The substance to the right of the arrow are called products . A product is a substance that is present at the end of a chemical reaction.

Answer:

Reactants are the starting substances and products are the ending substances in a chemical reaction.  The atoms in reactants are arranged one way and are rearranged in a different way to form the products (in other words, reactants are chemically different from products). The properties of reactants differ from the properties of products.

Explanation:

Sample response on Edge 2021

Answer:

C. Response to environment

Answer:

The correct answer is - option C.  I and Ill only.

Explanation:

One never tastes a unknown chemical in chemistry lab especialy a liquid that can be hazardous. Melting test is for solid as a solution is already a liquid state so melting test can not be perform on it.

The two test can be perform on given sample that are color comparison and boiling test to check if it is substance or a mixture. A misture is prepared from mixing different kind of compounds that can give different kind of color  while a particular substance give a uniform color always or remain colorless.

Boiling test can be helpful in distinguish a mixture from a substance as a particular sybstance always give a particular boiling point but mixture can be varry and depend of the coponents mixed together

Answer:

C) Covalent bonds come about because of a sharing of electrons; ionic bonds do not.

Explanation:

There are two main types of chemical bonds- covalent and ionic/electrovalent bonds.

Ionic bond: Ionic or electrovalent bonds are characterized by the transfer of electrons from electropositive atoms (metals) to electronegative atoms (non-metals). The metal atoms after donating their electrons become positively charged ions (cations) while the non-metal atoms after accepting electrons become negatively charged ions (anions). Strong electrostatic forces of attraction constitutes ionic bonds.

Covalent bond: Covalent bonds are formed by the sharing of electrons by the atoms involved in the bond; usually between atoms of comparable electronegativities or atoms of the same element. The shared electrons are contributed by each of the atoms involved in the bonding or may be contributed by only one of the atoms. In covalent bonding, molecules rather than ions are formed.

Answer:

arsenic (As)

Explanation:

Answer:wait nvm i was right its zirconium

the answer should be zirconium

Answer:PubChem CID: 32051

Explanation:Molecular Formula: Zn+2

Synonyms:  

zinc ion

zinc(2+)

Zinc cation

Zinc, ion (Zn2+)

Zn2+

More...

Molecular Weight:  

65.4 g/mol

Dates:  

Modify:

2020-10-20

Create:

2005-06-08

Answer:

d chemical reaction..

Answer:

from solar radiation entering the atmosphere

Explanation:

The energy within the greenhouse effect is originated from solar radiation entering the atmosphere, hence option C is correct.

Solar radiation is a broad word for the electromagnetic radiation that the sun emits. It is also sometimes referred to as the solar resource or just sunshine.

A variety of devices can be used to collect solar radiation and transform it into useful forms of energy, such as heat and electricity.

Heat is reflected into the atmosphere from solar energy that has been absorbed in the earth's surface.

Greenhouse gases absorb a large portion of the heat as it travels through the atmosphere and is radiated back into space.

Therefore, the greenhouse effect is powered by solar radiation that reaches the atmosphere.

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