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
elena55 [62]
2 years ago
12

All of the following are reasons why equations or balanced EXCEPT

Chemistry
1 answer:
Anni [7]2 years ago
4 0

Answer:

monkey

Explanation:

You might be interested in
Given the equation:
My name is Ann [436]

Answer:

this isnt even a question...

Explanation: what the heck

6 0
3 years ago
What does airbag, used for safety of car driver, contain?
MrRa [10]
<span>Answer : B. hope it helped</span>
6 0
3 years ago
Read 2 more answers
Can someone help?? This is really hard.
Sergeu [11.5K]

Answer:

See Explanation

Explanation:

Let us consider the first two reactions, the initial concentration of CO was held constant and the concentration of Hbn was doubled.

2.68 * 10^-3/1.34 * 10^-3 = 6.24 * 10^-4/3.12 * 10^-4

2^1 = 2^1

The rate of reaction is first order with respect to Hbn

Let us consider the third and fourth reactions. The concentration of Hbn is held constant and that of CO was tripled.

1.5 * 10^-3/5 * 10^-4 = 1.872 * 10^-3/6.24 * 10^-4

3^1 = 3^1

The reaction is also first order with respect to CO

b) The overall order of reaction is 1 + 1=2

c) The rate equation is;

Rate = k [CO] [Hbn]

d) 3.12 * 10^-4 = k [5 * 10^-4] [1.34 * 10^-3]

k = 3.12 * 10^-4  /[5 * 10^-4] [1.34 * 10^-3]

k = 3.12 * 10^-4/6.7 * 10^-7

k = 4.7 * 10^2 mmol-1 L s-1

e) The reaction occurs in one step because;

1) The rate law agrees with the experimental data.

2) The sum of the order of reaction of each specie in the rate law gives the overall order of reaction.

8 0
3 years ago
Write the electron configurations of cu2+ and ag+. is each electron configuration consistent with the color you observed for eac
djverab [1.8K]
(1) Copper:
Copper has the atomic number : 29
Cu2+ means that it lost 2 electrons, therefore, the total number of electrons is 29-2 = 27 electrons.
The electronic configuration is:
1s2 2s2 2p6 3s2 3p6 3d9

(2) Silver:
Silver has atomic number : 47
Ag  + means that it lost one electron, therefore, the total number of electrons  is 47-1 = 46 electrons
The electronic configuration is:
<span>1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10</span>

8 0
3 years ago
Read 2 more answers
How much ice at a temperature of -17.5 ∘C must be dropped into the water so that the final temperature of the system will be 31.
Tanya [424]

Answer:

An insulated beaker with negligible mass contains liquid water with a mass of 0.205kg and a temperature of 79.9 °C How much ice at a temperature of −17.5 °C must be dropped into the water so that the final temperature of the system will be 31.0 °C? Take the specific heat for liquid water to be 4190J/Kg.K, the specific heat for ice to be 2100J/Kg.K, and the heat of fusion for water to be 334000J/kg.

The answer to the above question is

Therefore 0.1133 kg  ice at a temperature of -17.5 ∘C must be dropped into the water so that the final temperature of the system will be 31.0 °C

Explanation:

To solve this we proceed by finding the heat reaquired to raise the temperature of the water to 31.0 C from 79.9 C then we use tht to calculate for the mass of ice as follows

ΔH = m×c×ΔT

= 0.205×4190×(79.9 -31.0) = 42002.655 J

Therefore fore the ice, we have

Total heat = mi×L + mi×ci×ΔTi = mi×334000 + mi × 2100 × (0 -−17.5) = 42002.655 J

370750×mi = 42002.655 J

or mi = 0.1133 kg

Therefore 0.1133 kg  ice at a temperature of -17.5 ∘C must be dropped into the water so that the final temperature of the system will be 31.0 °C

5 0
3 years ago
Other questions:
  • Which statement best describes the properties of covalent compounds?
    9·2 answers
  • What is it with the name Sara these days!? XD
    9·1 answer
  • do you guys just sit and answer questions for fun or is it your job because that just sounds lame as shiit. I would like to know
    11·2 answers
  • (b) the absolute temperature of the gas at which 3.33x103 mol occupies 478 mL at 750 torr,​
    7·1 answer
  • 3. Determine the moles of sodium, Na, containing 7.9x1024 atoms.​
    7·1 answer
  • What is the concentration of a solution containing 0.32 moles of NaCl in 3.4 liters?
    7·2 answers
  • In a carbon dioxide molecule, a double covalent bond forms when the carbon atom shares what
    9·1 answer
  • Cu^2+ + No2^-<br>what is the formula​
    15·1 answer
  • Calculate the [H+] for a solution with a pOH of 4.75
    10·1 answer
  • The atomic number of an element:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!