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
krek1111 [17]
2 years ago
15

1. we used __________ to represent an element.

Chemistry
2 answers:
Ludmilka [50]2 years ago
8 0

Answer:

1. we used <u>chemical</u><u> </u><u>formula</u> to represent an element.

choice a. is correct

2. the chemical formula of a molecule shows the <u>number and kind of atoms contained in the molecule</u>.

choice c. is correct

3. which of the following is an atom?

= K [Potassium]

choice a. is correct

4. which of the following is a molecule?

= CO [Carbon Monoxide]

choice d. is correct

scoundrel [369]2 years ago
6 0

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

1. we used <u>Symbol</u> to represent an element.

2. The chemical formula of a molecule shows the <u>number and kind of atoms contained in the molecule</u>.

3. K (potassium) is the atom among the given choices.

4. CO (carbon - monoxide) is the molecule among given choices.

You might be interested in
For each pair, choose the compound with the smaller lattice energy, and explain your choice: (b) K₂O or K₂S.
dlinn [17]

the compound with the smaller lattice energy is potassium sulphide here the size of the molecule play a important role

The quantity of energy released by the electrostatic attraction of oppositely charged ions is known as lattice energy (L.E). The ion's size and charge affect the lattice energy.

lattice energy is inversely proportional to   size of ion and directly proportional to charge of the ion. They are each charged equally that is plus two and minus two However, because the Sulphur is larger in size  and the oxygen is lesser in this case, The lattice energy of potassium oxide is larger  the lattice energy of potassium sulphide  is smaller.

To learn more about lattice energy :

brainly.com/question/18222315

#SPJ4

5 0
1 year ago
On a trip of 555 miles, an automobile consumed 55.5 gallons of gasoline costing $4.55 per gallon.
bagirrra123 [75]

Answer:

0.455

Explanation:

555/55.5 mean 10 miles per gallon, take the price per gallon and divide it by 10. 4.55/10

5 0
3 years ago
What can you summarize about the use of acid-base indicators?
densk [106]

An acid-base indicator is used to identify the presence of an acid or base. These indicators exhibit different colors depending on the solution that they are in. They are especially useful when completing titrations to determine the molarity of an unknown substance and is denoted as option D.

<h3>What is Titration?</h3>

This is done in the laboratory and involves the slow addition of one solution of a known concentration to a known volume of another solution of unknown concentration.

Acid-base indicators are used to determine the presence of an acid or base in a solution which is based on the colors seen when performing the chemical reaction.

It is used to calculate the the molarity of an unknown substance through the knowledge of the other parameters which is therefore the reason why option D was chosen as the most appropriate choice.

Read more Acid-base indicators  here brainly.com/question/2815636

#SPJ1

6 0
9 months ago
Is Shrek A God? Yes / No
Mandarinka [93]

Answer:

Shrek is best waifu UwU

And le only god i'll ever praise

7 0
3 years ago
Read 2 more answers
What type of igneous rock is cooled and solidified above ground?
valkas [14]
Hi, I think the rocks that are cooled and solidified above ground are most commonly basalt. 

Hope I helped a bit!
7 0
3 years ago
Read 2 more answers
Other questions:
  • Write a brief account of Ernest Rutherford’s personal and professional life in no more then 150 words
    8·1 answer
  • How do I balance this equation? (Number 2)
    5·1 answer
  • Gas burning in an engine is an example of a
    9·1 answer
  • Why is it difficult to determine earth's inner structure
    15·1 answer
  • (please, I need some help)
    15·1 answer
  • how many grams of sodium hydroxide are required to dissolve in 232 g of water to make a 2.88 m solution
    12·1 answer
  • M= 2 kg, a = 2 m/s^2. <br><br> Find F
    13·1 answer
  • In a heating curve, when is the temperature constant?
    7·1 answer
  • Acid rain is a term that refers to a mixture of wet and dry deposited material from the atmosphere containing higher than normal
    15·1 answer
  • In 6 months time, the Earth will revolve to the other side of the sun. During the June Solstice, the most
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!