0.2:
The bond angles of H20 and NH3 are not 109.5" like that of CH4, although O and N
atoms are sp hybridized is like carbon. Give reason.​

Answer:

No, light behaves as a Transverse Wave. All electromagnetic waves behave as transverse waves.

Answer:

Explanation:

OH forms a covalent bond. However, OH itself is negatively charged. Therefore, it can form ionic attractions to the positively charged sodium (Na+) ions.

Answer:

0.192 M NaOH

Explanation:

Answer:

The mass of one mole of a substance is equal to that substance's molecular weight. ... water is 18.015 atomic mass units (amu), so one mole of water weight 18.015 grams. ... Avogadro's number is a proportion that relates molar mass on an atomic ... one molecule of water (H2O), one mole of oxygen (6.022×1023 of O atoms)

Answer:

We know that,

Density= mass upon volume.

mass= 21.93g

Volume= 49.3 - 46.3

= 3 cm³

Density = 21.93÷ 3

= 7.31 g/cm³

Hope it helps :))

A piece of indium with a mass of 21.93 g is submerged in 46.3 cm³ of water in a graduated cylinder. The water level increases to 49.3 cm³. The correct value for the density of indium measured in g/cm3 from these data is 7.31 g/cm³.

The density of a material is defined as its mass per unit volume. Although the Roman letter D can also be used, the most common symbol for density becomes. Mathematically, density is calculated by dividing weight by volume.

Density is frequently loosely defined as weight per unit volume, which is technically wrong; this quantity is actually more accurately characterized as specific weight. One example is the oil and gas industry in the United States.

Density= mass/volume.

mass= 21.93g

Volume= 49.3 - 46.3

           = 3 cm³

Density = 21.93÷ 3

            = 7.31 g/cm³

Therefore,  7.31 g/cm³ is the density.

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Answer:

4 sun , planet, moon are the components in the correct order

Answer:

search in chrome u will get your answer

Explanation:

Answer:

i cannot see the question due to the flash you used

Explanation:

Answer:

Water's unique density, high specific heat, cohesion, adhesion, and solvent abilities allow it to support life.

Explanation:

Answer:

A= Compound

B= Mixture

C= Element

D= Element

Explanation:

A has two different types of atoms chemically together as a compound

B is made up of two or more different atoms not chemically joined together

C has one type of atom

D has one type of molecule. They're the same and could be a diatomic element like hydrogen

Sorry if this is confusing or wrong

Answer:

Reaction is already balanced

Explanation:

The equation in reaction 1 is given as;

CH3COOH + NaHCO3 --> CO2 + H2O +  Na+   +  CH3COO-

The reaction is already balanced. This is because the umber of atoms of elements in the reactant is equal to that of the products

Carbon

Reactant = 2 + 1 = 3

Product = 2 + 2 = 3

Hydrogen

Reactant = 3 + 1 + 1 = 5

Product = 2 + 3 = 5

Oxygen

Reactant = 2 + 3 = 5

Product = 2 +1 + 2 = 5

Sodium

Reactant = 1

Product = 1

Answer:

The reaction is already balanced because the number of atoms in the reactant is equal to the products

Explanation:

Answer:

Energy is transferred when atoms are rearranged

Explanation:

Breaking bonds between atoms need energy. When new bonds are formed, energy is released

The law of conservation of energy is energy isn't created or destroyed

A and B are wrong because there is creation or destruction of energy

C is wrong because energy can be transferred (think touching a hot stove with your finger.  heat is transferred from the stove to your finger OUCH!)

D is correct because the energy is still there, but in a different form

Answer: Is the chemical equation balanced or unbalanced?

Explanation:  H2 + O2 = H20

O BALANCED

O UNBALANCED

I have the same problem

Answer:

C

Explanation:

Cellular respiration is the metabolic process and is a reduction-oxidation reaction that yields ATP molecules. Thus, option C is accurate.

It is a redox reaction that utilizes glucose and oxygen molecules to release carbon dioxide and energy in the form of ATP. This energy released is used to drive the functions and roles of the cells.

The food molecule, glucose is broken in the presence of the oxygen molecule to release the carbon dioxide and the energy from the cells that are in the form of adenosine triphosphate molecule.  

Therefore, option C. cellular respiration is a redox reaction is correct.

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Answer:

The answer is 1/3 of the population.

Answer:

50%

50%

0%

Explanation:

um- punnett squares are weird lol

Answer: True

Explanation:

Venus is the hottest planet in the solar system. Mercury is still hot but half of it is also cold due to the sun not directly pointing at it.

Answer:

true

Explanation:

Answer:

Photosynthesis gas, is called carbon dioxide. Carbon Dioxide in this process is where the plants take in the dioxide and water, which is slowly reduced which gains electrons! :)

Explanation:

Hope this helps !  plz mark as brainliest!

Answer: the resource which they are not likely to compete for is CARBONDIOXIDE. The correct option is C.

Explanation:

Competition may be defined as the a negative effect on plant growth which occurs when there is reduction in the availability of resources.

During the growth of plants, there are several resources that affects it's growth and maintenance. These resources include:

--> soil nutrients,

--> water,

--> carbondioxide and

--> sunlight

Since plants are autotrophs, that is, they manufacture their own food through the use of inorganic raw materials such as water and carbondioxide in the presence of sunlight, there may exist some level of competition for these resources when there is lack of space.

But plants are NOT likely to compete for carbondioxide because the atmospheric pool of carbondioxide is large and well mixed, therefore it won't be affected by lack of space between the two plants. Unlike the other main resources such as soil nutrients and water which are highly competed for and can determine the distribution of plants in an ecosystem.

Answer: The amount of water produced is 9.3 grams

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

[tex]CH_4+2O_2\rightarrow CO_2+2H_2O[/tex]

mass of reactants = mass of methane + mass of oxygen = 22.5 g + 35.7 g = 58.2 g

mass of products = mass of carbon dioxide + mass of water = 48.9 g +  mass of water

48.9 g +  mass of water = 58.2 g

mass of water = 9.3 g

Answer:b

Explanation:

Answer:

1.6M

Explanation:

molarity = moles /Volume  = 0.4/0.25= 1.6 M

Answer:

I guess it is.....

Oxidane.

Answer:

Technically, dihydrogen monoxide.

Explanation:

You see, the International Union of Pure and Applied Chemistry, also known as IUPAC, hasn't seen a need to define a structural name for water yet.

Following the naming conventions, it should most likely be called "dihydrogen monoxide", but IUPAC has never officially defined this as the chemical name for water.

Answer:

See detailed explanation.

Explanation:

Hello!

i. In this case, since the given chemical reaction is exothermic due to the negative change in the enthalpy of reaction, we infer that according to the mentioned principle, by lowering the temperature the reaction will shift rightwards and therefore the yield is increased; thus, you need a lower temperature than the specified.

ii. In this case, since the reaction has less moles at the products side, according to the mentioned principle it'd be necessary to rise the pressure in order to increase the yield, since the increase of pressure favors the reaction side with the fewest number of moles.

Best regards!