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
Marrrta [24]
3 years ago
6

Which of the following is a chemical change?

Chemistry
1 answer:
JulijaS [17]3 years ago
8 0
The answer is D, carbon and oxygen reacting to form carbon dioxide.
You might be interested in
I need number 5,6 please thanks
bulgar [2K]
5. b is the right answer

6. c is the right answer
6 0
3 years ago
Titration Volume & Concentration
polet [3.4K]

Answer:

18,1 mL of a 0,304M HCl solution.

Explanation:

The neutralization reaction of Ba(OH)₂ with HCl is:

2 HCl + Ba(OH)₂ → BaCl₂ + 2 H₂O

The moles of 17,1 mL≡0,0171L of a 0,161M Ba(OH)₂ solution are:

0,0171L*\frac{0,161moles}{L} = 2,7531x10⁻³moles of Ba(OH)₂

By the neutralization reaction you can see that 2 moles of HCl reacts with 1 mole of Ba(OH)₂. For a complete reaction of 2,7531x10⁻³moles of Ba(OH)₂ you need:

2,7531x10^{-3}molBa(OH)_{2}*\frac{2molHCl}{1molBa(OH)_{2}} = 5,5062x10⁻³moles of HCl.

The volume of a 0,304M HCl solution for a complete neutralization is:

5,5062x10^{-3}molHCl*\frac{1L}{0,304mol} = 0,0181L≡18,1mL

I hope it helps!

4 0
3 years ago
Three reasons for air is mixture and water is compound
zhannawk [14.2K]
1. air components change from place to place, while water will just stay the same

2. Water doesn't have nor show individual properties, but air does show that it has it's own property

3. You can separate different gases from air physically, but with water you must pass electricity through it.

Don't take my word for it, this is just what I learned back in middle school. 
8 0
3 years ago
Read 2 more answers
A simple circuit consists of a battery to provide power, wires to carry the ______, and load that uses the _________-for example
kipiarov [429]
A simple circuit consists of a battery to provide power, wires to carry the electrical power, and
load that uses the electrical power for example a light globe




good luck
6 0
3 years ago
What is the density if<br> a sample of rock has a mass of 69<br> g and a volume of<br> 23<br> ml?
kiruha [24]
Density = mass / volume

= 69g / 23 ml

= 3 g / ml.

Thus, the density of the sample is 3 grams per ml or 3g/ ml
4 0
3 years ago
Read 2 more answers
Other questions:
  • What are the measurements for standard temperature and pressure (stp)? kp?
    14·1 answer
  • Help !! Just number 10 ,11 ,12 thanks!
    10·1 answer
  • When you can not see what is taking place, but other senses indicate occurences. this is called?
    12·1 answer
  • When a 1.0 M solution of HCl is titrated with a 1.0 M solution of KOH, which is the approximate pH at the equivalent point?
    11·1 answer
  • How many grams are in 2.75 moles of Calcium
    5·2 answers
  • A certain shade of blue has a frequency of 7.05 × 1014 hz. What is the energy of exactly one photon of this light?
    7·1 answer
  • What is the percent of Heterozygous rabbits
    12·2 answers
  • What does it mean when it asks for the planet’s composition?
    10·2 answers
  • Plsssssssssssssssssssssss herlppppppppppppppppppppppppp meeeee
    6·1 answer
  • Help what are the answers FAST
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!