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
Bas_tet [7]
3 years ago
8

I need help with number 3. is the answer 1,2,3,or4

Chemistry
1 answer:
lubasha [3.4K]3 years ago
8 0

Answer:

1 and 4

Explanation:

in both pictures the temperature is cooling down

You might be interested in
The chemical reaction shown above takes place in a closed system. What is true about the system while the reaction occurs? A. Th
Ede4ka [16]

<u>Answer:</u> In a chemical reaction, the total mass of the particles in the system stays the same

<u>Explanation:</u>

Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.  

This also means that total mass on the reactant side must be equal to the total mass on the product side in a chemical reaction.

Every balanced chemical reaction follows law of conservation of mass.

<u>For Example:</u> Formation of water molecule

2H_2+O_2\rightarrow 2H_2O

Total mass on reactant side = [2(2\times 1)+(2\times 16)]=36g/mol

Total mass on product side = [2((2\times 1)+16)]=36g/mol

Hence, in a chemical reaction, the total mass of the particles in the system stays the same

5 0
3 years ago
How many moles of iron is 3.011 x 10^27 atoms of iron? Please show work if possible
Alisiya [41]

Answer:

...

Explanation:

The simple unit conversion tool which helps you to convert atoms to moles or moles to atoms units. Unit Conversion – Moles to Atoms. Atom. Mole. Formula: Mole = Atom * 6.0221415E+23 ... not as 1.8051

6 0
2 years ago
Molecules can be either positively or negatively charged depending upon their elemental arrangement
Nuetrik [128]
They are positively or negatively charged based on their electrical configuration of electrons*
For example an electronic configuration of 2,8,3 would have a negative charge if +3 since it needs to lose 3 electrons to gain the electrical configuration of a noble gas
2,8,1 would have a charge of +1 for the same reason
2,8,6 would be -2 since it is easier to gain 2 electrons that lose 6 electrons

Hope this helped :))
8 0
2 years ago
Oxygen has an electronegativity of 3.4, phosporus has an electronegativity of 2.2 The bond between them is
Ipatiy [6.2K]

Answer:

B. polar covalent

Explanation:

7 0
3 years ago
Tin hydrogenooxolate formula
vladimir2022 [97]

Answer:

Tin(IV) Hydrogen Oxalate. Alias: Stannic Hydrogen Oxalate. Formula: Sn(HC2O4)4. Molar Mass: 474.8178. :: Chemistry Applications:: Chemical Elements, Periodic Table.

Explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • What is the chemical formula of the ionic compound that forms from potassium and bromine?
    14·1 answer
  • Identify the characteristics of earth that makes it a special place
    5·1 answer
  • Short pea plans exist in the p1 and f2 generations . What happens to the phenotype in the f1 generation
    8·1 answer
  • Where does cellular respiration occur? What is cellular respiration?
    12·2 answers
  • What is the main idea and Detail/Evidence of Light microscopes​
    13·2 answers
  • Given samples of water:
    15·1 answer
  • The iron with which they make the houses or bridges is the same as our blood?
    7·1 answer
  • The blades of a wind turbine are at rest until the movement of air causes the blades to spin.
    13·1 answer
  • What new substance was made after they were mixed
    14·1 answer
  • What type of molecule is being modeled?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!