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
klemol [59]
3 years ago
11

Help me plzzzzzzzz it helps a lot

Chemistry
2 answers:
forsale [732]3 years ago
8 0
Your answer is D! :)
Sergeu [11.5K]3 years ago
4 0

Answer:

D

Explanation:

cracks from temperature changes is a type of physical weathering often known as freezing and thawing

You might be interested in
СН3 – СН = СН2 + НCl → help help help help​
Alex

СН₃ – СН = СН₂ + НCl → CH₃-CHCl-CH₃

<h3>Further explanation</h3>

Alkenes are unsaturated hydrocarbons that have a -C = C- double bond.

If there are 2 double bonds it is called an alkadiene, and if there are three double bonds it is called an alkatriene

General formula for Alkenes: CnH2n

addition reactions to alkenes follow Markovnikov's rule. in the addition reaction of hydrogen halide (HX), the halogen atom (X) will be bonded to the carbon atom that binds less H atom.

If the double-bonded carbon atom has the same number of H atoms attached to it, then the X atom will tend to be attached to the carbon atom with the longer alkyl group.

Addition reaction of propene compounds with HCl

СН₃ – СН = СН₂ + НCl → CH₃-CHCl-CH₃

CH - this carbon atom binds fewer H atoms, so Cl is bonded to this bond

5 0
3 years ago
How many moles in .5g of sodium bromide?
Genrish500 [490]
I'm not sure how many sign fig's you are required to have.
However I think the final answer would be 0.05 Moles, because of the .5g, that is considered 1 sign fig.

6 0
3 years ago
Be sure to answer all parts. Nitric oxide, NO·, is a radical thought to cause ozone destruction by a mechanism similar to that o
SIZIF [17.4K]

Answer:

See image attached and explanation

Explanation:

The stratospheric ozone layer is very important in absorbing high-energy ultraviolet radiation that is harmful to living systems on earth. The concentration of ozone in the stratosphere is determined by both thermal and photochemical pathways for its decomposition. Nitric oxide, NO, is a trace constituent in the stratosphere that reacts with ozone to form nitrogen dioxide, NO2, and the diatomic oxygen molecule. The nitrogen-oxygen bond in NO2 is relatively weak. When an NO2 molecule encounters an oxygen atom, it transfers an oxygen, forming O2 and NO. The chemical reactions involved are formations of NO2 following by reaction of NO2 with atomic oxygen for form NO and O2. The sum of both reactions show that the overall reaction is simply the reaction of ozone with atomic oxygen to form two molecules of molecular oxygen. Hence, NO only serves as a catalyst, it does not undergo a permanent change itself.

6 0
3 years ago
Il See Periodic Table See Hint
zavuch27 [327]

The molecular formula shows the number of atoms present. The molecular formula of the gas is most likely ClO2.

In terms of gas density and molar mass, the ideal gas equation can be written in the form; PM = dRT

Where;

P = pressure of the gas

M = molar mass of the gas

d = density of the gas

R = molar gas constant

T = temperature of the gas

Making the molar mass of the gas the subject of the formula;

M = dRT/P

d = 2.875 g/L

R = 0.082 atmLmol-1K-1

T =  11°C + 273 = 284 K

P = 750.0 mm Hg or 0.99 atm

Substituting values;

M =  2.875 g/L ×  0.082 atmLmol-1K-1 × 284 K/ 0.99 atm

M = 67.6 g/mol

The gas is most likely ClO2.

Learn more: brainly.com/question/11969651

6 0
3 years ago
Electronegativities of the elements Be, Mg, Ca, and Sr follow a specific trend within their group. Based on this trend, the atom
Travka [436]

Answer:

Sr

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Some atoms become unstable because (2 points)
    15·2 answers
  • How is air temperature usually measured?
    10·2 answers
  • Describe how the surface area affect the rate of a reaction
    6·1 answer
  • How many moles of carbon dioxide are released daily by a humming birds respiration?
    6·1 answer
  • Calculate the solubility of barium carbonate, baco3, in pure water (ksp = 2.0  10–9 for baco3).
    7·1 answer
  • Consider the voltaic cellZn(s) + Cu{2+}(aq)--&gt; Zn{2+}(aq)+Cu(s){}=chargeUnder standard conditions, what is the maximum electr
    11·1 answer
  • 45:06 What most likely occurred during this demonstration? In a science demonstration, a teacher mixed zinc (Zn) with hydrogen c
    7·1 answer
  • What are the parts of the cell theory?Mark all that apply
    8·1 answer
  • What does atomic structure mean?
    6·2 answers
  • A certain violet light has a wavelength of 4.12 x 10^-7 m. What is the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!