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
Natali [406]
3 years ago
5

PLZ HELP ITS DUE IN AN HOUR I WILL GIVE BRAINLISTS TO THE RIGHT ANSWER

Chemistry
1 answer:
VARVARA [1.3K]3 years ago
6 0

Answer:

Explanation:88

You might be interested in
which best describes ionization energy? a. energy needed to add an electron to a neutral atom in the gas phase b. energy needed
SVEN [57.7K]
<span>c. energy needed to remove an electron from an atom or ion in the gas phase</span>
8 0
3 years ago
Read 2 more answers
Which the following statement ia correct for the equation shown here​
Shkiper50 [21]
B.

As you can see both NO and NH3 have 4 moles therefore it is 4:4 between the molecules or in other words a 1:1 ratio in simplest forms
7 0
3 years ago
2.What is the scientific method and how does it work?
never [62]

Answer:A hypothesis is a conjecture, based on knowledge obtained while seeking answers to the question

Explanation:

he process of the scientific method involves making conjectures (hypotheses), deriving predictions from them as logical consequences, and then carrying out experiments or empirical observations based on those predictions.

6 0
3 years ago
Consider the following reaction at constant P. Use the information here to determine the value of ΔSsurr at 355 K. Predict whet
Sloan [31]

The given reaction is as follows:

2NO (g) + O₂ (g) = 2NO₂ (g), ΔH = -114 kJ

It is known that dSsurr = -dHsys / T (Temp = 355 K)

So,  dSsurr = - (-114 × 1000) / 355

dSsurr = +321.12 J/K

Hence, the value of dSsurr is +321.12 J/K

For a reaction to be spontaneous, dG<0,

Also dStotal = dSsys + dSsurr > 0

It is known that dG = dHsys - TdSsys,

Now let us assume,

dG<0

Also, dStotal = dSsys + dSsurr > 0

(-114 × 1000) - (355 × dSsys) <0

355 × dSsys > -114 × 1000

dSsys > -321

dSsys >dSsurr

dSsys + dSsurr > 0

dStotal > 0

Thus, the assumption is correct, and the given reaction is spontaneous. Hence, the final answer is Ssurr = +321 J/K reaction is spontaneous.



8 0
3 years ago
Does data from mass spectrometry indicate that modern scientists have made modifications to Dalton''s model? Justify.
Gelneren [198K]
John Dalton was a scientist who proposed that all matter consists of atoms. At this stage, no one had yet discovered neutrons and the nucleus. As a result, Dalton's model consisted of a single atom i.e. the atom was the smallest object. 
A mass spectrometer is an instrument that is able to see what is inside an atom. Scientists have been able to prove that the item is not the smallest object in the world. Atoms are made up of smaller objects called protons, neutrons and electrons. 
We can, therefore, safely conclude that data  from mass spectrometry has helped modern scientists to make modifications to Dalton's model. <span>
</span>
5 0
3 years ago
Other questions:
  • A chemist prepares a solution of iron(II) bromide FeBr2 by measuring out 0.55kg of iron(II) bromide into a 500.mL volumetric fla
    14·1 answer
  • #1: What is the charge on an electrically neutral atom of hydrogen?
    15·2 answers
  • Use dimensional analysis to find the number of cm/min in 5.8 m/hr. Show your work on the white board. Be sure to calculate the a
    12·1 answer
  • How many molecules are present in a sample of carbon dioxide, CO2 with a mass of 168.2?
    10·1 answer
  • Q1.What is the mass of 5 moles Of 1.Mg
    8·2 answers
  • What is the balanced chemical equation for the reaction used to calculate ΔH∘f of SrCO3(s)?
    15·1 answer
  • What is the oxidation state of nitrogen in N2?<br> O A. +5<br> O B.-3<br> O C. +3<br> O D.O
    5·1 answer
  • What is the frequency of a particular type of electromagnetic
    7·1 answer
  • Write the general formula of a. alkane b. aikyl radicals radicals
    10·1 answer
  • What is crucial in the formation of metamorphic rock?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!