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
andreev551 [17]
2 years ago
13

I need help in science

Chemistry
1 answer:
astraxan [27]2 years ago
7 0
The answer is D . I hope this help you :) .
You might be interested in
Jesse travels 3.0 meters east and then turns and travels 4.0 meters north. What distance did Jesse travel? 1 m 5 m, northeast 7
boyakko [2]
7.0 meters because 3.0+4.0=7 
3 0
3 years ago
Read 2 more answers
Which statement describes how technology has increased our information on Mars?
Luden [163]

The Curiosity rover found sulfur compounds in rocks and carbon in organic compounds like propane, butene, benzene, toluene and thiophene.

It detected methane, not in soil samples, but in the Martian atmosphere.

It did not discover helium in underground pockets. The hole it can drill is only 5 cm deep.

4 0
3 years ago
Read 2 more answers
Define Condensation .​
ozzi

Answer:

Condensation is the change of the physical state of matter from the gas phase into the liquid phase.

6 0
2 years ago
Read 2 more answers
Who was the first to state the concept of an atom
marin [14]
Democritus, a Greek philosopher, first developed the idea of atoms (around 460 B.C., I believe).
Hope this helps!
6 0
3 years ago
What is the emperical formula of a compound containing 40.1% carbon and 6.6% hydrogen​
levacccp [35]

Answer:

CH₂

Explanation:

Given parameters:

Percentage composition:

          Carbon  = 40.1%

          Hydrogen  = 6.6%

Unknown:

Empirical formula of the compound  = ?

Solution:

The empirical formula of a substance is its simplest formula.

 Elements                             Carbon                             Hydrogen

Percentage

Composition                           40.1                                     6.6

Molecular mass                        12                                         1

Number of moles                  40.1/12                                  6.6/1

                                                3.342                                    6.6

Divide through by

the smallest                         3.342/3.342                           6.6/3.342

                                                      1                                        2

So the empirical formula of the compound is CH₂

5 0
3 years ago
Other questions:
  • A voltaic cell with an aqueous electrolyte is based on the reaction between Cd2 (aq) and Mg(s), producing Cd(s) and Mg2 (aq). Wr
    13·1 answer
  • HCL is slowly added to aqueous Na2CO3 forming NaCl, H2O, and CO2. Follow the steps above to write a balanced equation for this r
    14·1 answer
  • This planet is know as the "Red" planet. It has polar ice caps and is believed to have once had liquid water on its surface.
    15·1 answer
  • ILL GIVE BRAINLIEST ANSWER IN 5 MIN!
    8·1 answer
  • Which of the following is consistent with a reaction that proceeds spontaneously in the reverse direction (assume all variables
    15·1 answer
  • A Series of choices between two characteristics that is used to identify an organism is called a
    10·1 answer
  • Susan and her friend found a piece of metal which they want to
    7·1 answer
  • How many grams of CaCl, are in 250 mL of 2.0 M CaCl ?
    11·1 answer
  • How does energy from the Sun drive the cycling of matter?
    9·1 answer
  • Classify the following substances as an element,a mixture or a compound<br>1.limestone​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!