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
dalvyx [7]
3 years ago
11

What is chalk made of?

Chemistry
2 answers:
aksik [14]3 years ago
7 0
I think it is calcium carbonate, from sedimentary rocks and such
skelet666 [1.2K]3 years ago
6 0
Calcium carbonate
---------------------------
You might be interested in
When we destroy soil, it releases?
lord [1]

Answer:

Ch02

Explanation:

5 0
3 years ago
Why the is ratio of magnesium ions to chloride ions in MgCl2 is 1:2?
Monica [59]
You should read up on Proust's law, better known as the Law of Definite Proportions. This is a chemical law that defines your question more generally, on why the ratio of elements and ions are always fixed.

Basically, this compound Magnesium(II) Chloride is MgCl2 because it has the same number of protons, neutrons, and electrons all the way. This defines the properties of the compound or atom. 
5 0
3 years ago
True or false. adding more neutrons to a neutrally charged atom will not change the charge
san4es73 [151]
The statement is true.
6 0
3 years ago
Once an enzymatic reaction is completed, the enzyme releases what?
sleet_krkn [62]

Answer:

Once an enzymatic reaction is completed, the enzyme releases substrates.

Explanation:

The enzyme will always return to its original state at the completion of the reaction. One of the important properties of enzymes is that they remain ultimately unchanged by the reactions they catalyze. After an enzyme is done catalyzing a reaction, it releases its products (substrates).

5 0
2 years ago
Question
andreev551 [17]

Answer:

Sln

n=m/mr

n=25/100

n=0.25mole of Caco3

Malality =number of moles/volume (divided by number of moles both sides)

volume =Malality /number of moles

v=0.125/0.25

v=0.500L

I hope this help

5 0
3 years ago
Other questions:
  • Why does solid change to liquid when heat is added
    12·1 answer
  • One mole of nitrous acid (HNO2) contains 1.00 gram of hydrogen (H), 14.0 grams of nitrogen (N), and 32.0 grams of oxygen (O). Wh
    12·1 answer
  • Which of the following is the largest volume? (B?)
    7·1 answer
  • Which of the compounds, c3h8, mgcl2, zn(no3)2, ocl2, are expected to exist as molecules?
    12·2 answers
  • Consider the balanced equation for the following reaction:
    9·1 answer
  • 4. All of the following are examples of natural causes of air pollution
    14·1 answer
  • A gas takes up a volume of 17.0L, has a pressure of 2.3 atm, and a temperature of 299K. If I raise the temperature to 355K and l
    7·1 answer
  • Q7-A graduated cylinder is filled to the 12.0 mL line with water. A solid with a mass of 14.52 g is placed in the graduated cyli
    10·1 answer
  • CH3CH3Li ionic or covalent
    13·1 answer
  • How many carbon monoxide molecules are in 0.75 moles of carbon monoxide?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!