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
Fofino [41]
3 years ago
6

Why is charcoal black?

Chemistry
1 answer:
sp2606 [1]3 years ago
8 0
Charcoal absorbs all wavelengths of light  that fall on it.

You might be interested in
How do molecular shape affect polarity
devlian [24]
The shape of the molecule will determine the direction of each of the individual bond dipoles, and thus, will always play a role in determining the polarity of the molecule as a whole.
6 0
1 year ago
What is the molecular formula of the hydrocarbon whose molar mass is 536 g/mol and contains 89.55 w/w% carbon?
leonid [27]

Given the percentage composition of HC as C → 81.82 % and H → 18.18 %

So the ratio of number if atoms of C and H in its molecule can will be:

C : H = 81.82 12 : 18.18 1 C : H = 6.82 : 18.18 = 6.82 6.82 : 18.18 6.82 = 1 : 2.66 ≈ 3 : 8

So the Empirical Formula of hydrocarbon is:

C 3 H 8

As the mass of one litre of hydrocarbon is same as that of C O 2 The molar mass of the HC will be same as that of C O 2 i.e 44 g mol

Now let Molecular formula of the HC be ( C 3 H 8 ) n

Using molar mass of C and H the molar mass of the HC from its molecular formula is:

( 3 × 12 + 8 × 1 ) n = 44 n So 44 n = 44 ⇒ n = 1

Hence the molecular formula of HC is C 3 H 8

Does that help?

7 0
3 years ago
A positively charged substance is brought near the ion. What will most likely happen and why
d1i1m1o1n [39]

<u>Answer:</u> It repels positive ion and attracts negative ion.

<u>Explanation:</u>

There are 2 types of ions:

1. Cations: These ions are positively charged ions which are formed when a substance looses electrons.

2. Anions: These ions are negatively charged ions which are formed when a substance gains electrons.

It is known that, like charges repel each other and unlike charges attract each other.

As, it is given that the substance is positively charged, so it will attract anion and repel cation.

4 0
3 years ago
Can you guys help me please!!!!
Masteriza [31]

Answer:

i think it is true

Explanation:

if it correct plz plz mark as brainliest

thank you

19NBoli

4 0
3 years ago
Read 2 more answers
Plz help me it a timed test
Shtirlitz [24]

Answer:

B

Explanation:

6 0
2 years ago
Other questions:
  • Explain why we did not see distinct lines (like on an emission spectrum) when the metal salts were burned.
    12·1 answer
  • you need 16.66ml (+-0.01) of 53.4 (+-0.4)wt% of NaOH with a density of 1.52 (+-0.01)g/mL to prepare 2.00L of 0.169M of NaOH. Wha
    8·1 answer
  • what is the molar mass of a gaseous flouride of sulfur containing 70.4% F and having a density of approximately 4.5g/L at 20 deg
    15·1 answer
  • Can any of you unscramble the word mmncotiuy
    13·2 answers
  • What is the mass in grams of 9.45*10^24 molecules of methanol (CH3OH)?
    5·1 answer
  • Micronutrients can be classified based on the presence of ______ in their chemical structures. According to this classification
    12·2 answers
  • PLS HELP ASAP WITH THIS SCIENCE HW
    13·1 answer
  • How are mixtures and solutions different?
    13·1 answer
  • Compare How does the horse's average speed from 60 s to 120 s compare to its average speed from 120 s to 180 s?
    8·1 answer
  • a 1.00-l solution contains 2.50×10-4 m cu(no3)2 and 1.20×10-3 m ethylenediamine (en). the kf for cu(en)22 is 1.00 × 1020. chegg
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!