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
erik [133]
3 years ago
15

Coffee is homogeneous. heterogeneous.

Chemistry
1 answer:
Basile [38]3 years ago
3 0
The answer is homogeneous
You might be interested in
Most atoms have no net charge because they have
Ne4ueva [31]

Atoms have no electric charge because the protons and electrons "cancel out" each others charges. Neutrons have no charge. What is the atomic number of an element? The atomic number is the number of protons in the atom's nucleus.

Hope this helps have a great day :)

6 0
3 years ago
Read 2 more answers
How does increasing the temperature affect collisions?
ddd [48]
Combustion Have a great day!
8 0
2 years ago
Read 2 more answers
What is the percent composition of dinotrogen pentoxide? With work shown please
iris [78.8K]

Answer:

%N = 25.94%

%O = 74.06%

Explanation:

Step 1: Calculate the mass of nitrogen in 1 mole of N₂O₅

We will multiply the molar mass of N by the number of N atoms in the formula of N₂O₅.

m(N): 2 × 14.01 g = 28.02 g

Step 2: Calculate the mass of oxygen in 1 mole of N₂O₅

We will multiply the molar mass of O by the number of O atoms in the formula of N₂O₅.

m(O): 5 × 16.00 g = 80.00 g

Step 3: Calculate the mass of 1 mole of N₂O₅

We will sum the masses of N and O.

m(N₂O₅) = m(N) + m(O) = 28.02 g + 80.00 g = 108.02 g

Step 4: Calculate the percent composition  of N₂O₅

We will use the following expression.

%Element = m(Element)/m(Compound) × 100%

%N = m(N)/m(N₂O₅) × 100% = 28.02 g/108.02 g × 100% = 25.94%

%O = m(O)/m(N₂O₅) × 100% = 80.00 g/108.02 g × 100% = 74.06%

7 0
3 years ago
Which three groups of the periodic table contain the most elements classified as metalloids (semimetals)?
attashe74 [19]
The metalloids are mostly concentrated in groups 14, 15, and 16. (Some simpler charts will show them as 4A, 5A, and 6A - take a look at the top of the periodic table your class uses to double-check).

If you like my answer, please vote me a 'brainliest' - trying to improve my rank :-)

8 0
3 years ago
Read 2 more answers
What is biological difference ​
topjm [15]

Answer:

Sex refers to biological differences between males and females. For example, chromosomes (female XX, male XY), reproductive organs (ovaries, testes), hormones (oestrogen, testosterone). Gender refers to the cultural differences expected (by society / culture) of men and women according to their sex.

Explanation:

4 0
3 years ago
Other questions:
  • What is the answer to number one
    9·1 answer
  • For the reaction ? Fe+? H2o ⇀↽? Fe3o4+? H2 , a maximum of how many grams of fe3o4 could be formed from 354 g of fe and 839 g of
    11·2 answers
  • BRAINLIEST IF YOU SHOW WORK!
    10·1 answer
  • What are the differences between cholesterol and ergosterole?​
    7·1 answer
  • A solution contains 0.182 molmol NaClNaCl and 0.897 molH2OmolH2O. Calculate the vapor pressure of the solution at 55 ∘C∘C. The v
    12·1 answer
  • If you are using a thermometer, you are measuring the
    11·1 answer
  • What is the scientific term for rocks made in lava?
    6·2 answers
  • Some chemical factories make hydrogen gas (H2) using a process called steam methane reforming. In this process, methane (CH4) co
    15·1 answer
  • Use the table to determine the number of protons for each atom. Then, choose the statement below that is true about the two atom
    12·1 answer
  • Four difference between electrolytic cell and electrochemical cell​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!