Josie draws models of the particles within a substance. Which model best represents the particles in
a solid?

D
A
B
C

Answer:

pretty sure its C

Explanation:

Democritus was all about the consept f tiny indestructible partivls called atoms so C is the only one that doesn' t fit

Answer:

I'm pretty sure it's A

Anser:

Explanation:

hope this helps

Answer:

Boron

Explanation:

Hope that helps

Answer:

Boron.

Explanation:

2 energy shells

1st energy she'll 2 electrons

2nd energy shell 3 electrons

Answer:

It's true

Explanation:

Uhhh, the internet! lol.

Answer:

Explanation: Because the order of elements is based on atomic number, vertical families share similar chemical properties.

Answer:

O volume of the solution

Explanation:

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 / volume of solution  in L

For example:

if we dissolve the 1 mole of NaCl to make the solution of volume 2 L. The molarity of solution is,

M = 1 mol / 2 L

M = 0.5 M

Answer:

Elements and compounds are two types of pure substances.

Explanation:

Explanation:

When Henri Becquerel investigated the newly discovered X-rays in 1896, it led to studies of how uranium salts are affected by light. By accident, he discovered that uranium salts spontaneously emit a penetrating radiation that can be registered on a photographic plate.

Answer:

Fe (s) + Cu^2+ (aq) + SO4^2- (aq) --> Cu (s) + Fe^2+ (aq) + SO4^2- (aq)

Explanation:

Answer:

Nitrogen has an atomic number of 7 (Z=7) because it has 7 protons in its nucleus. Some nitrogen atoms have an atomic mass number of 15 (A=15). A is the number of neutrons plus protons in the nucleus. However, we already know that there are 7 protons

Answer:

Atomic number = Number of protons = Number of electrons

Atomic number = 7

Answer:

Here is ur answer...

Explanation:

2) Half-filled d orbital increases the stability of the element.

Answer:

The order the words go for the blanks

Explanation:

Interia

Rest

Constant

Unbalanced

Balanced

Distance

Answer:

the products which is formed in the given reaction is MgO ( magnesium oxide )

Explanation:

when magnesium metal reacts with oxygen present in air it burns with a white dazzling flame

to form white powder of magnesium oxide (MgO)

here's the balanced chemical reaction for it

2Mg+O2->2MgO

Explanation:

A because A galvanic cell consists of two half-cells, such that the electrode of one half-cell is composed of metal A, and the electrode of the other half-cell is composed of metal B; the redox reactions for the two separate half-cells are thus: An+ + ne− ⇌ A.

Answer:

A

Explanation:

Answer:

Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.

Answer:

the atomic number

Explanation:

it would be in the upper corner

Answer:

D I'm pretty sure.

Explanation:

I'm taking the quiz right now and D makes the most sense.

Answer:

d

Explanation:

Answer: 448 g of [tex]O_2[/tex] will be required to completely react with 784g moles of CO(g) during this reaction.

Explanation:

To calculate the moles :

[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]    

[tex]\text{Moles of} CO=\frac{784g}{28g/mol}=28moles[/tex]

The balanced chemical equation is:

[tex]2CO(g)+O_2(g)\rightarrow 2CO_2(g)[/tex]  

According to stoichiometry :

2 moles of [tex]CO[/tex] require  = 1 mole of [tex]O_2[/tex]

Thus 28 moles of [tex]CO[/tex] will require=[tex]\frac{1}{2}\times 28=14moles[/tex]  of [tex]O_2[/tex]

Mass of [tex]O_2=moles\times {\text {Molar mass}}=14moles\times 32g/mol=448g[/tex]

Thus 448g of [tex]O_2[/tex] will be required to completely react with 784g moles of CO(g) during this reaction.

Answer:

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Explanation:

Answer:38°

Explanation:

Answer:

More

Explanation:

Answer:

htt ps://w ww.you  tube. com/watch?v =oyy377 Yoj4I

Explanation:

Answer:

C: Something looking bent under water.

Answer:

Non-metals tend to gain electrons to attain Noble Gas configurations. The have relatively high Electron affinities and high Ionization energies. Metals tend to lose electrons and non-metals tend to gain electrons, so in reactions involving these two groups, there is electron transfer from the metal to the non-metal.

Answer:

The evidence of matter scattering light wave in many different directions is;

D. The colors on the water's surface match the colors in the sky

Explanation:

Light scattering is used to describe the sending of a given beam of light in many directions (by tiny particles) when the light passes through a medium, due to the disruption of the bath of the light ray as it bumps into the tiny particles

Water has the nature of absorbing the red light. The light that enters the water is scattered by the tiny particles in the water such that the blue light which is the spectrum of light water allows to pass through is reflected along with the reflection of the sky and the colors of the water surface match the colors of the sky.

Answer:

C.

Explanation:

I took the quiz

Answer:

Cellular division has three main functions: (1) the reproduction of an entire unicellular organism, (2) the growth and repair of tissues in multicellular animals, and (3) the formation of gametes (eggs and sperm) for sexual reproduction in multicellular animals.

Answer:

There are four key reasons why a cell may be required to divide mitotically:

Tissue repair / replacement.

Organismal growth.

Asexual reproduction.

Development (of embryos)

Answer:

Three types of chemical bonds are important in human physiology, because they hold together substances that are used by the body for critical aspects of homeostasis, signaling, and energy production, to name just a few important processes. These are ionic bonds, covalent bonds, and hydrogen bonds.

Explanation:

Answer:

a. They are staying at the same speed

Explanation:

IF CORRECT PLSPLSPLS GIVE BRAINLIEST WOULD APPRECIATE :)

Answer:

a. They are staying at the same speed