What type of energy conversion is taking place inside a flashlight when it is on?

Answer:

i believe its d

Explanation:

Answer:

I checked and I too think its D

Sodium hydroxide, with the formula NaOH, is usually used in products as a pH adjuster. It's also used in soap-making to turn fats and oils into soap. You can find sodium hydroxide (also called caustic soda or lye) in its pure form in the cleaning aisle, since it's also really handy for clearing up clogged drains.

Answer:

b

Explanation:

Answer:

I, II, III,IV

Explanation:

Metals are known to possess metallic bonds. In a metallic bond, electro-positive metals loose electrons which form a cloud of electrons which exerts an attractive force on the positive metallic ions. This attractive force holds the metal atoms together in the crystal lattice.

The physical properties of metals include;

I. thermal conductivity

II. electrical conductivity

III. malleability

IV. ductility

Hence, substances that exhibit properties I-IV are metals and have metallic bonds.

The following properties which a substance that has metallic bonding

normally have include

Metals are elements which have metallic bonding which is always strong as

it helps to form a lattice.

Metals are good conductors of heat and electric current , they can also be

bent in to different shapes . This means it has all the properties listed above.

Read more on https://brainly.com/question/20248759

Uranium-232 will remain 11.72 g

The atomic nucleus can experience decay into 2 particles or more due to the instability of its atomic nucleus.  

Usually radioactive elements have an unstable atomic nucleus.  

The main particles are emitted by radioactive elements so that they generally decay are alpha (α), beta (β) and gamma (γ) particles  

General formulas used in decay:  

[tex]\large{\boxed{\bold{N_t=N_0(\dfrac{1}{2})^{T/t\frac{1}{2} }}}[/tex]

T = duration of decay  

t 1/2 = half-life  

N₀ = the number of initial radioactive atoms  

Nt = the number of radioactive atoms left after decaying during T time

t 1/2 = half-life  = 68.8 years

T = duration of decay  = 344 years

No= initial sample = 375 g

Uranium-232 remain :

[tex]\tt Nt=375.\dfrac{1}{2}^{344/68.8}\\\\Nt=375.\dfrac{1}{2}^5\\\\Nt=11.72~g[/tex]

Answer: D. At high temperatures and low pressures

Explanation:

At low temperature and high pressure, the kinetic energy of gas molecules is negligible and molecules will have negligible forces of attraction. So real gases will behave least like an ideal gas under such conditions.

At high temperature and low pressure, energy due to intermolecular forces becomes less important in comparison to the kinetic energy of particles. The size of molecules also become less significant than the empty space between the gas molecules. So real gases behave in a similar manner to ideal gases at high temperature and low pressure.

Answer:

About 500

Explanation:

Bc i used my calc

Answer:

C. Diffusion

Explanation:

just did

Answer:

Solvent is 1.00 liter of water.

Answer:

It would be the water i think rlly srry if im wrong thats just what i got

Explanation:

because a solvent would be the one dissolving

Answer:

A weather balloon also known as sounding balloon is a balloon that carries instruments aloft to send back information on atmospheric pressure, temperature, humidity and wind speed by means of a small, expendable measuring device called a radiosonde

Explanation:

Answer:

A weather balloon also known as sounding balloon is a balloon that carries instruments aloft to send back information on atmospheric pressure, temperature, humidity and wind speed by means of a small, expendable measuring device called a radiosonde.

Explanation:

I hope this helps :)

Answer:

B

Explanation:

The statement false about solution has been that all solutions are mixtures. Thus, option A is correct.

The solution can be defined as the dissolution of two or more substances. Thus, all solutions are been considered as dissolution of the solute and solvent molecules.

The solution has generally been the homogenous mixture as there has been the complete dissolution of the substances. However, the mixture can be defined as the combination and not the complete dissolution of the substances.

Thus, all solutions have not been considered as mixtures. Thus, option A is correct.

For more information about the solutions, refer to the link:

https://brainly.com/question/7932885

Answer:

The correct answer is b

Explanation:

Answer:

Correct Answer is (B)

Explanation:

Got it right on plato Chemistry Post test

Hope I helped you out :)

Answer:

Matter cannot be created destroyed

Explanation

Matter can change form through physical and chemical changes, but through any of these changes, matter is conserved. The same amount of matter exists before and after the change—none is created or destroyed. This concept is called the Law of Conservation of Mass.

Answer:

No

Explanation:

I dont at least but you may be lucky

Answer: Renewable becuase the trees can be cut and then replanted.

Explanation:

Non-Renewable resources are resources that cannot be replenished easily through natural process. These are the sources which are used in wise manner so that they do not get depleted. For example: coal, petroleum etc.

Renewable resources are resources that can be replenished overtime through natural process.These are the sources which never depletes completely. For example: bio mass energy, solar energy etc.

As trees can be replenished easily through natural process but it takes a long time for it to occur, it is a renewable source.

Answer:

Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements.

Explanation:

Answer:

the elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons.

~+lil more info +~

The vertical columns (groups) of the periodic table are arranged such that all its elements have the same number of valence electrons. All elements within a certain group thus share similar properties.

Answer:

Monomers contain bonds between metals

Answer:

B: Monomers contain double bonds

Explanation:

I got it right on Edge

Answer:

I belive its eon im not sure tho

eon is the answer can i please get the brainliest

Answer:

A , B, C

Explanation: D is a Diamagnetic

The metals that are paramagnetic are Calcium, Magnesium, and Sodium. The correct options are A, B, and C.

A weak magnetic field supplied externally can weakly attract some materials, which then create internal magnetic fields that are directed in the same direction as the applied magnetic field. This phenomenon is known as paramagnetism.

Despite not having an unpaired electron, the metal magnesium exhibits paramagnetic behavior. Sodium is also paramagnetic.

Atoms that have their electrons coupled are said to be diamagnetic, whereas those that don't are said to be paramagnetic. However, despite having no free electrons, calcium is said to be paramagnetic.

Thus, the correct options are A, Calcium, B, Magnesium, and C. Sodium.

To learn more about paramagnetism, refer to the link:

https://brainly.com/question/28216590

#SPJ2

Answer:

Awe ...

Explanation:

Answer:

false

Explanation:

Craters on the Moon are caused by asteroids and meteorites colliding with the lunar surface. The Moon's surface is covered with thousands of craters. ... It also has very little geologic activity (like volcanoes) or weathering (from wind or rain) so craters remain intact from billions of years.

The answer is 2

2H2 + O2 ---> 2H2O

Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. Solutions of HF are colourless, acidic and highly corrosive. It is used to make most fluorine-containing compounds; examples include the commonly used pharmaceutical antidepressant medication fluoxetine (Prozac) and the material PTFE (Teflon).

Answer:

it would be C!!

Explanation:

Answer:

cochlea

Explanation:

Answer:

the answer is two double bonds

Mass of H₂SO₄ : 69,972 g

A mole is a number of particles(atoms, molecules, ions)  in a substance

This refers to the atomic total of the 12 gr C-12  which is equal to 6.02.10²³, so 1 mole = 6.02.10²³ particles  

Can be formulated :

N = n x No

N = number of particles

n = mol

No = 6.02.10²³ = Avogadro's number

moles of H₂SO₄ :

[tex]\tt mol=\dfrac{N}{No}\\\\mol=\dfrac{4.3\times 10^{26}}{6.02\times 10^{23}}\\\\mol=7.14\times 10^2[/tex]

mass H₂SO₄ (MW=98 g/mol) :

[tex]\tt mass=mol\times MW\\\\mass=7.14.10^2\times 98\\\\mass=69,972~g[/tex]