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egoroff_w [7]
3 years ago
11

Which of these statements about reaction rates is accurate? All chemical reactions occur at the same rate. All chemical reaction

s occur at a fast rate. All chemical reactions occur at a slow rate. All chemical reactions occur at different rates.
Chemistry
2 answers:
elena-s [515]3 years ago
7 0

Answer:

All chemical reactions occur at different rates.

Explanation:

<em>The rate of a chemical reaction can the defined as the speed at which the chemical reaction occurs. It can also be defined as the speed at which the reactants disappear during a reaction or the speed at which products form.</em>

All chemical reactions occur at different rates depending on some factors which include:

  • Concentration of reactants or pressure of reactants in case of gases
  • Surface area of reactants (in case of solid)
  • Temperature of reactions
  • Nature of reactants
  • Presence/absence of catalysts.

The correct answer is that <em>"all chemical reactions occur at different rates".</em>

Nadya [2.5K]3 years ago
5 0

Answer:

The correct answer is "All chemical reactions occur at different rates".

Explanation:

The reaction speed is given by the amount of substance that is transformed into a given reaction per unit volume and time. Several factors influence the speed of a chemical reaction. One of them is the concentration of the reagents and the other the temperature, as well as the pressure.

Have a nice day!

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monitta
<span>Which of the following gases would be most likely to experience ideal behavior at high pressures? 
a. F2 
b. Ne 
c. C2H6 

Yes. The answer is (b) Ne (Neon). This is because monoatomic gases such as neon do not experience </span><span>intermolecular attractions and thus most likely to be close to ideal gases behavior. Not only that, Neon is a noble gas and is unreactive. </span>
5 0
4 years ago
Ionic compounds conduct electricity in the solid state true or false​
antoniya [11.8K]
<h3>Answer: False</h3>

In solid form, ionic compounds do not conduct electricity. Ionic compounds will conduct electricity when melted to their liquid state. This is due to the electrons being locked in place when in solid form, but liquid form allows for the electrons to move freely.

6 0
3 years ago
water and ammonia are polar. The hydrogen atoms in each have a slight positive charge. What does that tell you about the oxygen
Andreas93 [3]

Answer:

More electronegative

Explanation:

The oxygen and nitrogen in ammonia shows that they are more electronegative than the hydrogen  atoms.

  • Electronegativity shows the affinity of an atom for valence electrons.
  • Electronegativity is the measure of the relative tendency with which the atoms of the element attract valence electrons in a chemical bond.

The oxygen atom in water and the nitrogen atom in ammonia are more electronegative.

They attract the electrons more and they then become negatively charged.

The hydrogen will then become positively charged in the shared covalency.

4 0
3 years ago
What volume (mL) of a concentrated solution of sodium hydroxide (6.00 M) must be diluted to 187 mL to make a 1.53 M solution of
Len [333]

Answer:

47.68 mL

Explanation:

In this case, we have a <u>dilution problem.</u> So, we have to start with the dilution equation:

C_1*V_1=C_2*V_2

We have to remember that in a dilution procedure we go from a <u>higher concentration to a lower one</u>. With this in mind, We have to identify the <u>concentration values</u>:

C_1~=~6.00~M

C_2~=~1.53~M

The higher concentration is C1 and the lower concentration is C2. Now, we can identify the <u>volume values</u>:

V_1~=~X

V_2~=~187~mL

The V2 value has <u>"mL"</u> units, so V1 would have <u>"mL"</u> units also. Now, we can include all the values into the equation and <u>solve for "V1"</u>, so:

6.00~M*V_1=1.53~M*187~mL

V_1=\frac{1.53~M*187~mL}{6.00~M}=47.68~mL

So, we have to take 47.68 mL of the 6 M and add 139.31 mL of water (187-47.68) to obtain a solution with a final concentration of 1.53 M.

I hope it helps!

6 0
3 years ago
H. Identity of unknown metal
OLEGan [10]

Answer:

you can identify an unknown substance by measuring its density and comparing your results to a list of known densities. Density=mass/volume. Assume that you have to identify an unknown metal. You can determine the mass of the metal on a scale.

8 0
4 years ago
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