1. Thein an atom of that element.
number of an element equals the number of protons
2. The exact position of the electrons of an atom cannot be determined because they are
in constant
to the nucleus of an atom have the least
3. The electrons
amount of energy
4. The number of
bonds that atom can form.
in an atom tells you how many chemical
Answers
Answer:
1. Proton = electron if the element is not in an ionic state
proton = atomic number
Related Questions
Which one of the following combinations cannot function as a buffer solution?A) HCN and KCNB) NH3 and (NH4)2SO4C) HNO3 and NaNO3D) HF and NAFE) HNO2 and NaNO2
7. A change of state is a(n)_process.a. Irreversibleb. Reversible
Identify each element below, and give the symbols of the other elements in its group. a. [Ar] 4s23d104p4 b. [Xe] 6s24f145d2 c. [Ar] 4s23d5.
A protein is Select one: a. a saturated ester of glycerol. b. a polysaccharide. c. an aromatic hydrocarbon. d. a polymer of amino acids. e. one of the units making up a nucleic acid.
Answers
Explanation:
Butanol (С4Н9OH)
Structural formula is :-
CH3-CH2-CH2-CH2-OH
Answers
The data that should be plotted to show that experimental concentration data fits a first-order reaction is: C. In [reactant] vs. time.
What is a first-order reaction?
A first-order reaction can be defined as a type of chemical reaction in which the reaction rate (rate of reaction) is directly proportional to the concentration of the reacting chemical substance or elements.
Mathematically, the integrated rate law equation for a first-order reaction is given by this formula:
Where:
- A is the concentration after time (t).
is the initial concentration of the reactant.
- t is the time.
- k is the rate constant.
Taking the ln of both sides, we have:
Therefore, the data that should be plotted to show that experimental concentration data fits a first-order reaction is In[reactant] versus time.
Read more on rate constant here: brainly.com/question/24749252
Answer:
C) In[reactant] vs. time
Explanation:
For a first order reaction the integrated rate law equation is:
where A(0) = initial concentration of the reactant
A = concentration after time 't'
k = rate constant
Taking ln on both sides gives:
Therefore a plot of ln[A] vs t should give a straight line with a slope = -k
Hence, ln[reactant] vs time should be plotted for a first order reaction.
Answers
Answer:
The most likely reason is that spent fuel bars can infect the community with radiation causing numerous health problems.
Explanation:
A spent fuel is a fuel that has been exposed to irradiation in a nuclear reactor. This fuel expels radiation and this is one of the main reasons why a group of people oppose the storage of spent fuel bars in their community. This is because through this fuel can occur a leak of radiation contaminating the community and generating major health problems.
Answers
Answer : The value of 'x' for this expression is, 5.59
Explanation :
The given expression is:
Now we have to determine the value of 'x' by solving the above expression.
Thus, the value of 'x' for this expression is, 5.59
What is the mole ratio of oxygen to pentane?
Answers
Answer:
8 : 1
Explanation:
The balanced equation for the reaction is given below:
C5H12 + 8O2 → 5CO2 + 6H2O
From the balanced equation above,
1 mole of C5H12 reacted with 8 moles of O2.
Thus the mole ratio of O2 to C5H12 is:
8 : 1
Answer:
8:1 !!!
Explanation:
I Just take the test
Answers
Answer:
S²⁻(aq) + Cr²⁺(aq) ⇄ CrS(s)
Explanation:
The molecular equation includes all the species in the molecular form. Usually, it is useful to write this first to balance the equation. This is a double displacement reaction.
K₂S(aq) + Cr(NO₃)₂(aq) ⇄ 2 KNO₃(aq) + CrS(s)
The full ionic equation includes all ions and the species that no dot dissociate in water.
2 K⁺(aq) + S²⁻(aq) + Cr²⁺(aq) + 2 NO₃⁻(aq) ⇄ 2 K⁺(aq) + 2 NO₃⁻(aq) + CrS(s)
The net ionic equation includes only those ions that participate in the reaction and the species that do not dissociate in water.
S²⁻(aq) + Cr²⁺(aq) ⇄ CrS(s)
The net ionic equation for the precipitation reaction is: Cr+ + 3S → CrS(s)
The net ionic equation for the precipitation reaction between potassium sulfide and chromium(II) nitrate can be written as:
Cr + 3S → CrS(s)
In this reaction, the chromium(II) ions (Cr) react with the sulfide ions (S) to form chromium(II) sulfide (CrS) which precipitates as a solid.
Learn more about Net ionic equation here:
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