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
weeeeeb [17]
3 years ago
8

All of the following require breaking and forming chemical bonds except

Chemistry
1 answer:
skad [1K]3 years ago
3 0
As far as I know, the answer is B (breaking a rock)
You might be interested in
How much carbon dioxide can a single tree absorb in its lifetime?
Bess [88]

Answer:

a tree absorb as much as 48 pound of carbon dioxide per year and can sequester 1 ton of carbon dioxide by the time it reaches 40 years old

5 0
3 years ago
What is the fraction of the hydrogen atom's mass (11h) that is in the nucleus? the mass of proton is 1.007276 u, and the mass of
ololo11 [35]
Hello there!

To determine the fraction of the hydrogen atom's mass that is in the nucleus, we have to keep in mind that a Hydrogen atom has 1 proton and 1 electron. Protons are in the nucleus while electrons are in electron shells surrounding the nucleus. The mass of the nucleus will be equal to the mass of 1 proton and we can express the fraction as follows:

Mass Fraction= \frac{mass 1 Proton}{mass H atom} = \frac{1,007276 u}{1,007825}=0,9995

So, the fraction of the hydrogen atom's mass that is in the nucleus is 0,9995. That means that almost all the mass of this atom is at the nucleus.

Have a nice day!
3 0
3 years ago
How does this article relate to me?
mario62 [17]
I cant help unless there is an article..
4 0
3 years ago
Read 2 more answers
200.0 mL of 3.85 M HCl is added to 100.0 mL of 4.6 M barium hydroxide. The reaction goes to completion. What is the concentratio
Ede4ka [16]

Answer:

2.387 mol/L

Explanation:

The reaction that takes place is:

  • 2HCl + Ba(OH)₂ → BaCl₂ + 2H₂O

First we <u>calculate how many moles of each reagent were added</u>:

  • HCl ⇒ 200.0 mL * 3.85 M = 203.85 mmol HCl
  • Ba(OH)₂ ⇒ 100.0 mL * 4.6 M = 460 mmol Ba(OH)₂

460 mmol of Ba(OH)₂ would react completely with (2*460) 920 mmol of HCl. There are not as many mmoles of HCl so Ba(OH)₂ will remain in excess.

Now we <u>calculate how many moles of Ba(OH)₂ reacted</u>, by c<em>onverting the total number of HCl moles to Ba(OH)₂ moles</em>:

  • 203.85 mmol HCl * \frac{1mmolBa(OH)_{2}}{2mmolHCl}= 101.925 mmol Ba(OH)₂

This means the remaining Ba(OH)₂ is:

  • 460 mmol - 101.925 mmol = 358.075 mmoles Ba(OH)₂

There are two OH⁻ moles per Ba(OH)₂ mol:

  • OH⁻ moles = 2 * 358.075 = 716.15 mmol OH⁻

Finally we <u>divide the number of OH⁻ moles by the </u><u><em>total</em></u><u> volume</u> (100 mL + 200 mL):

  • 716.15 mmol OH⁻ / 300.0 mL = 2.387 M

So the answer is 2.387 mol/L

7 0
3 years ago
You'll be given 100 points if you answer this question!!!!!!!!!!!!
storchak [24]

Answer:conducts ,steel, polystyrene, thermal insulation

Explanation:

5 0
2 years ago
Other questions:
  • A bacteria culture begins with 15 bacteria which double in amount at the end of every hour. Solve for the number of bacteria tha
    10·1 answer
  • In the PhET activity, “Properties of Gases”, when volume is kept the same, as the temperature is increased
    7·1 answer
  • When the name of a molecule ends in -ose, the molecule is a
    7·2 answers
  • What increases and stays the same?
    12·1 answer
  • Zinc + Hydrochloric acid — Zinc chloride + Hydrogen [Zn +2 HCI → ZnCl2 + H2] is an
    11·1 answer
  • Indicar que elemento es de transición *
    9·1 answer
  • If I have an unknown quantity of gas at a
    12·1 answer
  • What do I do if I like someone but they think your annoying
    10·1 answer
  • What type of energy is a light switch
    12·2 answers
  • A silver necklace has a density of 10.5 g/mL and a volume of 1.5 mL. What is the mass of the silver necklace?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!