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
lilavasa [31]
4 years ago
7

ONLY 3 QUESTIONS

Chemistry
1 answer:
jarptica [38.1K]4 years ago
7 0
A. The hydrogen molecule has a structural formal that looks like this: H—H. The oxygen molecule has a structural formula that looks like this: O=O (except you should make the lines longer). When you combine the molecules, it has a structural formula that looks like this:  
                                                            O
                                                          /     \
                                                        H      H

b. O=C=O (again, make the lines a little longer)

c. space-filling model of hydrogen looks like this oo (circles should be touching) and the space-filling model of carbon dioxide should look like this OoO (circles should be touching)

You might be interested in
Can someone help me on this please
ioda
Should be 27300 milligrams
4 0
3 years ago
Read 2 more answers
Match the term with the definition:
MrRissso [65]
Flammability = A
Toxicity = D
Malleability = C
Heat of Combustion = B
5 0
3 years ago
Read 2 more answers
The atomic number of phosphorus is 15. how many electrons does it have in its 3rd shell
Snowcat [4.5K]
It would be 8 would it not
7 0
3 years ago
Outline the difference between compounds and mixtures. State two examples of each.
alekssr [168]

Compounds are elements and its a pure substance with a gised composition.

Mixtures two or more subtances mixed to together.There are 2 type of mixtures.

Homegenous Mixtures (Solutions)-Two or more substances mixed but is uniform, you cant see the different mixtures.

Ex:Sugar mixed with water.The sugar dissolves and becomes one with the water.

Heterogeneous Mixtures-Two or more substances mixed but is not uniformed.You can see all the substances put into the mixture.

Ex:A salad, you can see whats all mixed in the sald and can pick it apart.

3 0
3 years ago
Complete the balanced molecular chemical equation for the reaction below. If no reaction occurs, write NR after the reaction arr
Alex Ar [27]

Explanation:

The reaction is given as;

Pb ( N O ₃ ) ₂ (aq) +  K I (aq) → Pb I ₂ +  K N O ₃

To ensure the reaction is balanced, there has to be equal number of toms of each element present in both the reactant and product side of the reaction.

This leads us to;

Pb ( N O ₃ ) ₂ (aq) + 2 K I (aq) → Pb I ₂(s) + 2 K N O ₃(aq)

Ths way all atoms of elements are the same.

3 0
4 years ago
Other questions:
  • Repeated trials and replication are the same thing. <br><br> - True<br> - False
    13·1 answer
  • EASY QUICK CHEM QUESTION!! Which line indicates a higher reaction rate?
    11·2 answers
  • How many hours would it take to reduce one mole of Al+3 to aluminum using a current of 22.2 Amps? Question 12 options: A) 3.6 ho
    9·1 answer
  • WILL MARK BRAINLIEST! ANSWER QUICKLY!!!!
    13·2 answers
  • Iron (Fe) undergoes an allotropic transformation at 912°C: upon heating from a BCC (α phase) to an FCC (γ phase). Accompanying t
    15·1 answer
  • If the water is hot then the food coloring will spread faster,because?
    14·1 answer
  • The molar mass of H2O is 18.01 g/mol. The molar mass of O2 is 32.00 g/mol. What mass of H2O, in grams, must react to produce 50.
    5·2 answers
  • What is the coefficient for O2 when the following equation is correctly balanced with the smallest integer coefficient? -As2S3+-
    9·1 answer
  • Use the heating curve of 60.0 grams of ice and the list of values to answer the question.
    5·1 answer
  • The reaction where sodium (Na) reacts with water to produce hydrogen gas is a type of reaction.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!