Which is not a type of nuclear decay?
A. Zeta
B. Gamma
C. Alpha
D. Beta

Answer:

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Explanation:

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Answer:

The electrons in an atom can only occupy certain allowed energy levels to a lower one, the excess energy is emitted as a photon of light, with its wavelength dependent on the change in electron energy. This is why an atom can only emit specific wavelengths of light and not every possible wavelength.

Answer:

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Explanation:

Answer:

1cf gallon=7.481 us liquid gallon

Answer:

There are 4 Hydrogen atoms in the compound NH42CO3

Explanation:

The "H4" is used to represent the amount of Hydrogen atoms in the compound itself, which is 4.

Answer:

Explanation:

Most of this ancient space rubble can be found orbiting the Sun between Mars and Jupiter within the main asteroid belt. Asteroids range in size from Vesta – the largest at about 329 miles (530 kilometers) in diameter – to bodies that are less than 33 feet (10 meters) across.

Answer:

different from the number of their neutrons

Explanation:

They each have one single proton (Z = 1), but differ in the number of their neutrons. Hydrogen has no neutron, deuterium has one, and tritium has two neutrons. ... Their nuclear symbols are therefore 1H, 2H, and 3H. The atoms of these isotopes have one electron to balance the charge of the one proton.

Answer:

*result with sodium hydroxide: white ppt of Zn(OH)2

*excess sodium hydroxide: Precipitate dissolves to form a COLOURLESS solution

*Result with Aqueous ammonia: White ppt of Zn(OH)2

*excess aqueous ammonia: Precipitate dissolves to form a COLOURLESS solution

Answer:

K.E =1/2 Mass×(velocity)2

Explanation:

1/2mass=K.E/Velocity 2

1/2mass=105/(10m/s)2

1/2mass=105/100m/s

1/2mass=21/20m/s

mass=21/20m/s ×2

mass=21/10

mass=2.1 Kilogram (put the value)

Answer:

yes

Explanation:

if u watch or look closely u will observe it

The CH₃ has resonance structures as it has odd number of hydrogen atoms.

In chemistry, resonance, also called mesomerism, is a way of describing bonding in certain molecules or polyatomic ions by the combination of several contributing structures ,also variously known as resonance structures or canonical structures into a resonance hybrid (or hybrid structure) in valence bond theory. It has particular value for analyzing delocalized electrons where the bonding cannot be expressed by one single Lewis structure.

Thus,  CH₃ has resonance structures as it has odd number of hydrogen atoms.

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In human beings fertilization occurs in fallopian tube

Answer:

Fertilization usually takes place in a fallopian tube that links an ovary to the uterus. If the fertilized egg successfully travels down the fallopian tube and implants in the uterus, an embryo starts growing.

Answer:

It emits energy since to move from a higher energy level to a lower energy level or ground state, it must lose energy.

As per the details given, 48.6 g are present in 0.885 moles of manganese. The correct option is A.

To determine the gram contained in a given number of moles, use the element's molar mass. Manganese (Mn) has a molar mass of roughly 54.94 g/mol.

To calculate the grammes in 0.885 moles of manganese, use the following formula:

moles of Mn × molar mass of Mn = mass of Mn in grams

On calculating it:

0.885 moles × 54.94 g/mol = 48.60 g

Therefore, the mass of manganese present in 0.885 moles of manganese is 48.60 grams.

Thus, the correct answer is A. 48.6g.

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Answer:

Is letter B

Explanation:

Hope it helps :))

Answer:

D. From the equator to cooler parts of Earth

Explanation:

Thermal energy is always transferred from an area with a higher temperature to an area with a lower temperature. Moving particles transfer thermal energy through a fluid by forming convection currents.

Answer:

B. From the surface of the ocean to the bottom

D. From the equator to cooler parts of Earth

Explanation:

Test approved

Answer:

Metabolism is the set of life-sustaining chemical reactions in organisms. The three main purposes of metabolism are: the conversion of the energy in food to energy available to run cellular processes

Explanation:

Answer:

magnesium chlorides are solids with high melting and boiling points because of the large amount of heat which is needed to break the strong ionic attractions.

Explanation:

These magnesium ions have more than one charge (2+). These highly charged ions will attract other ions more strongly than ions with one charge, therefore more energy will be needed to overcome the electrostatic forces of attraction and so the melting points will be higher.

Answer:

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Answer:

The overall chemical reaction between baking soda (sodium bicarbonate) and vinegar (weak acetic acid) is one mole of solid sodium bicarbonate reacts with one mole of liquid acetic acid to produce one mole each of carbon dioxide gas, liquid water, sodium ions, and acetate ions. The reaction proceeds in two steps

Answer:

The change in energy for a chemical reaction has to do with the potential energy of the electrons. The change in energy for a nuclear reaction has to do with the potential energy of the nucleus. The change in energy for a nuclear change is many orders of magnitude larger than for a chemical change.

The statement that describes both nuclear and chemical changes occur is "potential energy."

Nuclear reactions include a change in the nucleus of an atom, which usually results in the production of a different element. Chemical reactions, on the other hand, require just electron rearrangement and no changes in nuclei.

A nuclear reaction is any reaction that causes the nucleus of an atom to change. An atom's nucleus is made up of protons and neutrons. It seems to reason that a nuclear reaction alters the amount of protons and/or neutrons in an atom.

Chemical changes occur when bonds between molecules or atoms are broken and/or formed to form a new material. In this case, the new substances' qualities differ from the old, the particles differ, and the number of particles can alter.

The change in energy for a nuclear change is many orders of magnitude greater than the change in energy for a chemical change.

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Considering the definition of pOH and strong base, the pOH of the aqueous solution is 1.14

The pOH (or potential OH) is a measure of the basicity or alkalinity of a solution and indicates the concentration of ion hydroxide (OH-).

pOH is expressed as the logarithm of the concentration of OH⁻ ions, with the sign changed:

pOH= - log [OH⁻]

On the other hand, a strong base is that base that in an aqueous solution completely dissociates between the cation and OH-.

LiOH is a strong base, so the concentration of the hydroxide will be equal to the concentration of OH-. This is:

[LiOH]= [OH-]= 0.073 M

Replacing in the definition of pOH:

pOH= -log (0.073 M)

pOH= 1.14

In summary, the pOH of the aqueous solution is 1.14

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Answer:

C is the correct option.

Explanation:

When water reaches 100°C it starts evaporating and the molecules of water turns to vapor.

Answer:

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Explanation:

niuniniuniuniun

Answer:

Olfactory indicators

Explanation:

The substance whose odour changes in an acidic of basic medium are called olfactory indicators. In an olfactory indicator , smell varies depending on whether it is mixed with an acidic or basic solution.

Adhesion is the attraction of molecules of one kind for molecules of a different kind... water is adhesive because the water molecules are attracted to the straw and therefore adhere to it. Thus, adhesive forces are important for sustaining life. This is because of these forces, water can flow up from the roots to the tops of plants to feed the plant, allowing it to move against gravity through plant cells. Another example of why its important that water is adhesive is the movement of water to the tops of trees and the drainage of tears from tear ducts in the corners of your eyes. Or how water droplets stick to the end of the pine needles. These are all examples of adhesion.

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Answer:

paper, blood cell, virus, electron, atom

Explanation:

Answer:

1.92402 kilohertz

Explanation:

hope this helps

Answer:

• From wave equation :

[tex]{ \rm{v = f \lambda}}[/tex]

[tex]{ \rm{3.0 \times {10}^{8} = (1.89 \times {10}^{18}) \times \lambda}} \\ \\ { \rm{ \lambda = \frac{3.0 \times {10}^{8} }{1.89 \times {10}^{18} } }} \\ \\ { \boxed{ \rm{ \: \lambda = 1.587 \times {10}^{ - 10} \: }}}[/tex]