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
Licemer1 [7]
4 years ago
11

PLEASE HELP !!!

Chemistry
1 answer:
garri49 [273]4 years ago
7 0
According to the Law of Definite Proportions from Dalton's Atomic Theory, each compound is composed of a fixed ratio of each of its individual elements. So, the number of individual elements per 1 particle of that compound is represented by the subscripts. The answers are as follows:

Table sugar: 12 atoms of carbon, 22 atoms of hydrogen; 11 atoms of oxygen; 45 total atoms
Marble: 1 atom of calcium, 1 atom of carbon; 3 atoms of oxygen; 5 total atoms
Natural gas: 1 atom of carbon, 4 atoms of hydrogen; 5 total atoms
Rubbing alcohol: 3 atoms of carbon, 8 atoms of hydrogen; 1 atom of oxygen; 12 total atoms
Table sugar: 1 atom of silicon; 2 atoms of oxygen; 3 total atoms
You might be interested in
A buffer solution is prepared by adding NHACI
MAXImum [283]
Reactants would be the answer I think
5 0
4 years ago
NEED HELP with 7. 8. 9. 10. 11. 12. And 14 !!
aleksley [76]

Answer:

1.      0.00040 calories

2.   8.57 calories

3.   0.196 calories

4.  68 calories

5. 243 calories

6.  83680 joules

7.  1,054,368 joules

8. 2.45 calories

9. 556 (it says calories to calories so it wouldn't change)

10. 28367.52 joules

11. 59.6 calories

12. 449.6 joules

13.  0.00234 calories

14. 23292.328 joules

15. 22877693.6 joules

Hope this helps!

Explanation:

6 0
3 years ago
Which statement best describes an effect of tension acting on Earthis crudo
shtirl [24]

Answer:

layers of rock get folded

3 0
4 years ago
The volume of 350. mL of gas at 25°C is decreased to 250. mL at
Cloud [144]

V1/T1 = V2/T2

V1 = 350. mL

T1 = 25 + 273 = 298 K

V2 = 250. mL

T2 = ?

Solve the equation for T2: T2 = V2T1/V1 = (250. mL)(298 K)/(350. mL) = 213 K = -60°C

5 0
3 years ago
You have 3.012x10^23 molecules of sodium chloride - how many grams do you have?
lapo4ka [179]

Answer:

29.26 gram

Explanation:

No of molecules = no of mole × Avogadro's number

No of molecules = mass in gram/ molar mass × Avogadros number

Mass in gram =No of molecules×molar mass / Avogadros number

Mass in gram = 3.012 ×10^23 × 58.5/6.02×10^23

29.26 gram

8 0
3 years ago
Other questions:
  • What is formed when atoms join together with a covalent bond?
    6·2 answers
  • What was the approximate overall change in the carbon dioxide content between 1900 and 1962?
    13·1 answer
  • What combines to form compounds? A. atoms of elements B. molecules C. minerals D. valences
    13·1 answer
  • The change of size or shape of a substance is a ( ) change.
    14·2 answers
  • As sample of gas occupies 2.00L with 5.00 moles present. What would happen to the volume if the number of moles is increased to
    10·1 answer
  • Balance Na2CrO4 + AlPO4
    6·1 answer
  • A compound contains 7.79% C and 92.21% Cl. What is the molecular formula if it has a molar mass of 152g?​
    9·2 answers
  • 6. It took me 3 hrs to drive to the next city at the speed of 48km/h. How far a way are the cities?s ​
    11·1 answer
  • What is the percent composition of water found in tin (IV) oxide octahydrate?
    12·1 answer
  • If a gas at 25.0 °C occupies 3.60 liters at a pressure of 1.00 atm, what will be its
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!