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
Svetlanka [38]
3 years ago
12

Please Help 20 points+ Brainliest

Chemistry
1 answer:
Alexeev081 [22]3 years ago
7 0
I think A I'm sorry if I'm wrong I hope I'm right :)

You might be interested in
A piece of metal with a mass of 147g and a volume of 21ml. Calculate the density of the metal.
kipiarov [429]

Answer:

density of a piece of metal = 7 gr/ml

Explanation:

See the file please

3 0
3 years ago
Read 2 more answers
An isotope of carbon has 6 protons and 8 neutrons. What is the atomic mass of this element?
notsponge [240]

Answer:

14

Explanation:

Atomic mass = protons + neutrons

6 + 8 = 14

8 0
3 years ago
Considering 2N2H4(g) + N2O4(g) -> 3N2(g) +4H2O(g)
Tema [17]

Answer:

107.8

Explanation:

64 gram of N2H4 produce 72 gram of H20

then by crossmultiplication

64*121.3/72=107.82

3 0
3 years ago
What reaction is C+O2=CO2
slamgirl [31]

Answer:

Combination or synthesis

Explanation:

The reaction given below:

             C    +  O₂    →  CO₂  

The reaction above is termed a synthesis or combination reaction because two substances are combining to give a product.

  • A synthesis reaction involves the formation of a single product from two or more reactants.
  • The driving force for such reaction is the large and negative heat of formation of the product.
5 0
3 years ago
A learner was assigning oxidation numbers for different elements in the compounds OF2 and NaF. The learner assigned F an oxidati
77julia77 [94]

Answer: B. No, fluorine is always assigned an oxidation number of -1.

Explanation:

6 0
2 years ago
Other questions:
  • Which of the following is the correctly balanced chemical equation for the reaction Ca(OH)2 and HNO3
    10·2 answers
  • Find the mass of 250.0mL of benezene. The density of benezene is 0.8765 g/mL
    15·2 answers
  • If a bottle of fruit juice contains 2.00L, what volume of fruit juice does it contain?
    10·2 answers
  • You have a 2 Liter solution that contains 1 mole of NaCI. What is the molarity of the solution?
    15·1 answer
  • A student made the table below to compare high air pressure and low air pressure. Which correction is required to make the table
    11·1 answer
  • In the western U.S., ranchers aggressively killed wolves because they posed a threat to their cattle. As the wolf population dec
    15·2 answers
  • Is The reaction time is different for different stimuli<br> true or false?
    5·1 answer
  • 5. Which happens last in the process of photosynthesis?
    8·1 answer
  • C3H8 + 5O2 → 3CO2+ 4H2O, if 5.75L of oxygen are consumed in the above reaction, how many L of carbon dioxide are produced?
    15·1 answer
  • Which of the "planetary health measures" shown here have humans already exceeded?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!