1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Molodets [167]
3 years ago
13

Pls help i need help asap

Chemistry
1 answer:
Trava [24]3 years ago
7 0

Answer:

I think magnesium hydroxide.

Explanation:

You might be interested in
what is the electrons, valence electrons, and electron shells number please answer all 3 questions (look at the picture)
MariettaO [177]

In picture one, there are four electrons, one valance electrons and two shells, in image two there are three electrons, one valance electrons and two shells whereas there are 13 electrons, three valance electrons and three shells.

<h3>What is Electrons, Valence Electrons, and Electron Shells Numbers?</h3>

<u>Electrons</u>:

An electron is a negatively charged particle which can be either bounded with to an atom. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure.

<u>Valence Electrons:</u>

Valence electrons are those electrons which are present in outermost shell or in valence shell or energy level of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell.

<u>Electron Shells Numbers</u>:

Each shell can contain only a fixed number of electrons: the first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on.

So we can conclude that In picture one, there are four electrons, one valance electrons and two shells, in image two there are three electrons, one valance electrons and two shells whereas there are 13 electrons, three valance electrons and three shells.

Learn more about Valence Electrons here: brainly.com/question/371590

#SPJ1

4 0
1 year ago
a sample of a gas has a volume kf 640 cm^{3} at 100°c and 1490 mmhg,what would be its volume at stp?​
scoundrel [369]

Answer:

V₂ = 918.1 cm³

Explanation:

Given data:

Initial volume = 640 cm³

Initial temperature = 100°C (100+273 = 373 K)

Initial pressure = 1490 mmHg (1490 /760 = 1.96 atm)

Final volume = ?

Final temperature = 273 K

Final pressure = 1 atm

Solution:

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

now we will put the values in formula.

V₂ = P₁V₁ T₂/ T₁ P₂  

V₂ = 1.96 atm × 640 cm³ × 273 K / 373 K × 1 atm

V₂ = 342451.2 atm .cm³ . K / 373 K. atm

V₂ = 918.1 cm³

3 0
3 years ago
Can someone help me please
Aloiza [94]
<span>A cloud collapses to form a star and disk. Planets form from this disk.

According to our current understanding, a star and its planets form out of

a collapsing cloud of dust and gas within a larger cloud called a nebula
.his dense, hot core becomes the kernel of a new star.

Hoped this helped :D
</span>
7 0
3 years ago
Hi! I need help on 1-4 ASAP! Thanks!​
Aliun [14]

Answer:

5. a. false b. true c. false d. true e. false

6. it has to be something that can be supported or refuted through carefully crafted experimentation or observation

6 0
4 years ago
Please help me immediately!!!
serious [3.7K]

Answer:

Explanation:

Molar mass of FeCl3 = 162.2 g/mol

1 mole FeCl3 -------------- 162.2 g

mole FeCl3 ---------------- 1.1 g

moles = 1.1 / 162.2

= 0.00678 moles

8 0
3 years ago
Other questions:
  • The specific heat of nickel is 0.44 J/g*⁰C. How much energy needed to change the temperature of 95.4g of nickel from 32⁰C to 22⁰
    6·2 answers
  • Identify the type of reaction represented by each equation.
    8·2 answers
  • Which best describes the relationships between subatomic particles in any neutral atom? * 1 point the number of electrons equals
    5·1 answer
  • What type of fuel is most commonly used in nuclear power plants?
    5·2 answers
  • Everybody kept debating about is water wet so what you think?
    7·2 answers
  • Which are causes of mechanical weathering? Check all that apply.
    8·2 answers
  • Is steam a element compound, heterogeneous, mixture ,or solution?
    6·1 answer
  • Choose the correct explanations for the aromaticity of the compound.
    6·1 answer
  • • Average molarity of acetic acid
    7·1 answer
  • Guys please finnish thiissss​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!