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
Ratling [72]
2 years ago
13

HELP ASAP!!!!!!!!!!

Chemistry
1 answer:
weqwewe [10]2 years ago
8 0

Answer:

D) food that a chef seal in a plastic bag and cook under a controlled temperature condition.

Explanation:

Sous vide, also known as low temperature long time cooking, is a method of cooking in which food is placed in a plastic pouch or a glass jar and cooked in a water bath for longer than usual cooking times at a precisely regulated temperature. 

You might be interested in
Most gases exist as molecules, for example, fluorine is F2.
Kryger [21]
They are all stable and have eight valence electrons
4 0
2 years ago
Read 2 more answers
Which is the most likely to be reduced
ollegr [7]

Answer:

B

Explanation:

4 0
3 years ago
Read 2 more answers
The hydrogen atom is not actually electronegative enough to form bonds to xenon. were the xenon-hydrogen bond to exist, what wou
Marat540 [252]

Answer : The structure of XeH_4 will be square-planar.

Explanation :

In the given molecule XeH_4, 'Xe' is the central atom and 'H' is the terminal atom.

Xenon has 8 valence electrons and hydrogen has 1 valence electron. Therefore, the total number of valence electrons are 8 + 4(1) = 12 electrons.

The number of electrons used in Xe-H bonding = 8 electrons

The remaining electrons which are used as lone pair on central atom (Xe) = 12 - 8 = 4 electrons

There are 4 bonding pairs and 2 lone pairs of electrons, they will be arranged in the octahedral arrangement around the central atom with 2 lone pairs of electrons on central atom. The lone pairs are arranged linearly across the central atom. The resulting structure will be square-planar.

The structure of XeH_4 is shown below.

5 0
2 years ago
The reaction described by H2(g)+I2(g)⟶2HI(g) has an experimentally determined rate law of rate=k[H2][I2] Some proposed mechanism
MatroZZZ [7]

Answer:

Mechanism A and B are consistent with observed rate law

Mechanism A is consistent with the observation of J. H. Sullivan

Explanation:

In a mechanism of a reaction, the rate is determinated by the slow step of the mechanism.

In the proposed mechanisms:

Mechanism A

(1) H2(g)+I2(g)→2HI(g)(one-step reaction)

Mechanism B

(1) I2(g)⇄2I(g)(fast, equilibrium)

(2) H2(g)+2I(g)→2HI(g) (slow)

Mechanism C

(1) I2(g) ⇄ 2I(g)(fast, equilibrium)

(2) I(g)+H2(g) ⇄ HI(g)+H(g) (slow)

(3) H(g)+I(g)→HI(g) (fast)

The rate laws are:

A: rate = k₁ [H2] [I2]

B: rate = k₂ [H2] [I]²

As:

K-1 [I]² = K1 [I2]:

rate = k' [H2] [I2]

<em>Where K' = K1 * K2</em>

C: rate = k₁ [H2] [I]

As:

K-1 [I]² = K1 [I2]:

rate = k' [H2] [I2]^1/2

Thus, just <em>mechanism A and B are consistent with observed rate law</em>

In the equilibrium of B, you can see the I-I bond is broken in a fast equilibrium (That means the rupture of the bond is not a determinating step in the reaction), but in mechanism A, the fast rupture of I-I bond could increase in a big way the rate of the reaction. Thus, just <em>mechanism A is consistent with the observation of J. H. Sullivan</em>

5 0
3 years ago
a substance has a definite volume but no definite shape ? state whether this substance is a solid , a liquid , or a gas.​
DerKrebs [107]

Answer:

A liquid

Explanation:

This is the answer!! Hope this helps.

4 0
3 years ago
Other questions:
  • Dalton hypothesized that atoms are indivisible and that all atoms of an element are identical. It is now known that _____.
    7·2 answers
  • Explain why the boiling point of water decreases as elevation increases
    14·1 answer
  • Given the reaction: C6H12O6 + 6O2 → 6CO2 + 6H2
    5·2 answers
  • If 0.138g of cyclohexene (c6h10) was obtained from 0.240g of cyclohexanol (c6h120), what is the percentage yield of cyclohexene?
    6·1 answer
  • A scientist performs an experiment in which a radium–226 (Ra–226) atom decays into radon–222 (Rn–222). The scientist concludes t
    8·2 answers
  • Which of the following are chemicals?
    9·1 answer
  • Describe and explain how electrical conductivity occurs in mercury bromide and mercury, in both solid and molten states.
    9·1 answer
  • HELP ASAP!! is this the correct answer!
    14·2 answers
  • 10) Calculate the energy change for the formation of LiCl(s) from its elements in their standard states and the following tabula
    9·1 answer
  • Does food passes through liver, pancreas and appendix?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!