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
Igoryamba
3 years ago
6

You need to determine the

Chemistry
1 answer:
velikii [3]3 years ago
5 0

Answer:

3.7 mL

Explanation:

Step 1: Given data

Volume of water before the chalk is added: 8.7 mL

Volume of water after the chalk is added: 12.4 mL

Volume of the chalk: ?

Step 2: Calculate the volume of the chalk

The volume of the chalk is equal to the volume of water after the chalk is added minus the volume of water before the chalk is added.

V = 12.4 mL - 8.7 mL = 3.7 mL

You might be interested in
A. In a separatory funnel containing ethyl acetate and 10% aqueous sodium bicarbonate (NaHCO3), which layer would contain the br
castortr0y [4]

Answer:

ethyl acetate layer

Explanation:

This question tests your knowledge of the principle of solvent extraction.

In solvent extraction, there is always an organic layer and an aqueous layer. The ethyl acetate is the organic layer while the sodium bicarbonate is the aqueous layer.

A brominated aromatic compound will be extracted into the organic layer (ethyl acetate layer).

3 0
3 years ago
In a balanced equation, coefficients always represent
steposvetlana [31]

Answer:

D. The number of atoms present

Explanation:

In a balanced equation, coefficients always represent the number of atoms present.

8 0
3 years ago
Water Fluoridation and Cancer Risk
Diano4ka-milaya [45]

If you have a concern about fluoride in your drinking water,  you can get more information by contacting the local community water system and is denoted as option D.

<h3>What is Water?</h3>

This is referred to as a universal solvent and is usually colorless and used for various purposes such as drinking, washing etc.

Fluoride is added to water by the the community water system as it helkps to build strong teeth and cavities thereby preventing tooth decay. They know the concentration which is added to the water which is why they need to be contacted for more information.

Read more about Water here brainly.com/question/5060579

#SPJ1

4 0
1 year ago
The cell theory states that all new cells come from other cells. How do unicellular organisms reproduce? How is it different fro
Natalka [10]

the cell theory states that all new cells come from other living cells, and it's true for both multicellular as well as unicellular organisms.unicellular organisms reproduce through asexual reproduction,There are different types of reproduction like binary fission, vegetative, budding, fragmentation etc reproduction in unicellular organisms, through that they directly divide into new similar cells.

whiltin multicellular organisms, reproduction takes place through sexual reproduction, where male and female gametes are formed in separate reproductive organs and get transferred to form an embryo.

so in nut cell in unicellular organisms there is no specific organs,that is responsible for reproduction, while in multicellular there coplex reproductive system

5 0
3 years ago
An increase in which of the following does not increase the rate of a chemical reaction?
prisoha [69]

Answer:

product

Explanatiion:

3 0
3 years ago
Other questions:
  • What forms when all of the continents on earths surface merge into one massive landform?
    9·1 answer
  • What is the name of the fluid that protects the brain and spinal cord?
    8·1 answer
  • The specific heat of water is 4.18 J (g°C) and that of wood is 1.97 J/(g°C). Whích statement is correct?
    6·2 answers
  • How do you balance this equation? __Ag+__H2S+__O2➡__Ag2S+__H2O
    13·1 answer
  • Each diagram below represents the nucleus of an atom. How many different elements are represented by the diagrams
    12·1 answer
  • Which of the following is an example of an observation?
    10·1 answer
  • What will most likely happen when two bromine atoms bond together
    6·1 answer
  • How many protons and neutrons are in an atom of ^249 Bk?
    6·1 answer
  • What is included in the study of chemistry?
    13·2 answers
  • Rank the following oxides in order of increasing aqueous acidity: Ga₂O₃, Al₂O₃,In₂O₃
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!