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
Neporo4naja [7]
2 years ago
12

The role of teeth in the digestive system?

Chemistry
2 answers:
GREYUIT [131]2 years ago
5 0
We use our teeth to chew our food and prepare food to travel through the rest of digestive system
USPshnik [31]2 years ago
4 0
Help saliva and makes food soft and easy to swallow
You might be interested in
What is the best description of osmosis?
Rus_ich [418]
<span>Movement of water from an area of lower solute concentration to an area of higher solute concentration</span>
8 0
3 years ago
Read 2 more answers
Which of the following statements about minerals and ores is true?
Monica [59]

Answer:

please give a photo I can't now to help u

3 0
2 years ago
Which of these do not obey the octet rule? select all that apply. select all that apply. clo clo− clo2− clo3− clo4−?
ioda

The correct answer is ClO, ClO3-, ClO- and ClO4-

Kossel and Lewis in 1916 developed an important theory of chemical combination between atoms known as electronic theory of chemical bonding. According to this, atoms can combine either by transfer of valence electrons from one atom to another (gaining or losing) or by sharing of valence electron in order to have an octet( 8 electron) in their shells. This is known as octet rule.

In ClO2-, oxygen contains 8 electrons in its valence shell and oxygen will share one electron with chlorine to complete the octet of Cl. In other four, we can clearly see that there are more or less than 8 electrons in the outer shell of oxygen so we can clearly say that ClO, ClO3-, ClO- and ClO4-  are disobeying the octet rule.

3 0
3 years ago
Read 2 more answers
What is the ∆G for the following reaction between O3 and O2? 3O2(g) 2O3(g) Given: O3: ∆H = 285.4 kJ ∆S = -137.14 J/K)
Natali [406]
We’ll be using the equation:
dG = dH - TdS (replace ‘d’ with triangle)

I’m going to assume 0 degrees Celsius.
At 0 C (273 K):

dG = dH - TdS
dG = (285,400 J) - (273 K)(-137.14 J/K)
dG = 285,400 J + 37,439.2 J
dG = 322,839.2 J or 322.84 kJ

The dG of this reaction is +322.84 kJ. This reaction is not considered spontaneous.

This answer, in this instance, would be D. If the temperature used in the question is not 0 degrees C, replace the temperature that I used for calculation with the Kelvin temperature given in the problem (K = C + 273), and simplify to find the answer.
6 0
3 years ago
What is the molar mass of Al2(SO4)3​
umka21 [38]

Answer:

The molar mass of Al_2(SO_4)_3​ is 342.145 g/mol

Explanation:

The molar mass  is stated as the “mass per unit amount of substance”of a given chemical compound  

Al_2(SO_4)_3​  is Aluminium sulphate. They easily dissolve in water. It is primarily  used as a 'coagulating agent' in the drinking water purification and also in waste and sewage water treatment plants,  

We know,

Atomic weight of Aluminium =  26.981

Atomic weight of Sulphur= 32.065

Atomic weight of  Oxygen =  15.9994

Now molar mass of  Al_2(SO_4)_3​ (Aluminium sulphate) is

=>2(26.981)+3(32.065+4(15.999))

=>53.962 +3(32.065+63.996)

=>53.962+3(96.061)

=>53.962+288.183

=>342.145

4 0
3 years ago
Other questions:
  • When burning 180g of glucose in the presence of 192g of oxygen, water and carbon dioxide are produced?
    9·1 answer
  • Abbreviation for mole
    12·1 answer
  • Alpha-tocopherol is another name for ...
    13·1 answer
  • Based on reference table S, atoms of which of these elements have the strongest attraction for the electrons in a chemical bond?
    13·1 answer
  • 3 molecules NaOH determine the amount of grams
    11·1 answer
  • Write the chemical equation for the reaction in which silver carbonate is formed
    11·1 answer
  • Please help me before june 13th
    14·2 answers
  • How does a nuclear reactor produce electricity
    10·1 answer
  • A model for a potential chemical reaction is shown here. Evaluate the model and the reaction shown. Which statements are correct
    6·1 answer
  • Write the empirical formula for at least four ionic compounds that could be formed from the following ions:
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!