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
maks197457 [2]
3 years ago
15

One difference between mixtures and pure substances is that A) mixtures can be physically separated. B) mixtures are made of one

type of atom. C) pure substances have no chemical bonds. Eliminate D) pure substances can be physically separated.
Chemistry
2 answers:
Taya2010 [7]3 years ago
8 0

The answer is A on Usatestprep

Alborosie3 years ago
5 0
The answer your looking for is a)
 -please give me brainliest answer
You might be interested in
Consider the reaction 2NO(g) 1 O2(g) ¡ 2NO2(g) Suppose that at a particular moment during the reaction nitric oxide (NO) is reac
GalinKa [24]
<h2>a) The rate at which NO_2 is formed is 0.066 M/s</h2><h2>b) The rate at which molecular oxygen O_2 is reacting is 0.033 M/s</h2>

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

2NO(g)+O_2(g)\rightarrow 2NO_2(g)

The rate in terms of reactants is given as negative as the concentration of reactants is decreasing with time whereas the rate in terms of products is given as positive as the concentration of products is increasing with time.

Rate in terms of disappearance of NO = -\frac{1d[NO]}{2dt} = 0.066 M/s

Rate in terms of disappearance of O_2 = -\frac{1d[O_2]}{dt}

Rate in terms of appearance of NO_2= \frac{1d[NO_2]}{2dt}

1. The rate of formation of NO_2

-\frac{d[NO_2]}{2dt}=\frac{1d[NO]}{2dt}

\frac{1d[NO_2]}{dt}=\frac{2}{2}\times 0.066M/s=0.066M/s

2. The rate of disappearance of O_2

-\frac{1d[O_2]}{dt}=\frac{d[NO]}{2dt}

-\frac{1d[O_2]}{dt}=\frac{1}{2}\times 0.066M/s=0.033M/s

Learn more about rate law

brainly.com/question/13019661

https://brainly.in/question/1297322

7 0
3 years ago
Which of the following is an example of a chemical change?
Lynna [10]
The answer is burning paper

6 0
3 years ago
Read 2 more answers
What is the evaluation of 60.1 x -9.2?
poizon [28]
That's the evaluation

5 0
3 years ago
The capability of a substance to be stretched into thin wires without breaking is known as —
PSYCHO15rus [73]
The answer is ductility
3 0
3 years ago
Read 2 more answers
BRAINLIEST TO FIRST CORRECT ANSWER, THANKS!
Tamiku [17]

Answer:

increased

Explanation:

Consuming a compound increases the concentration. When you increase the concentration, the rate constant for that reaction also increases.

5 0
3 years ago
Other questions:
  • 24. Element X has five valence electrons, element Y has one valence electron, and element Z has one valence electron. Which two
    7·2 answers
  • Place the following descriptions in the correct order (1 to 4) to explain how lightning forms.
    5·1 answer
  • What is the total pressure of a gaseous mixture that contains three gases with partial pressures of 0.845 atm, 120 torr and 210
    7·1 answer
  • Determine the amount of heat(in Joules) needed to boil 5.25 grams of ice. (Assume standard conditions - the ice exists at zero d
    6·1 answer
  • I have a block of gold and the density is 13.54g/ml If I cut the block in half what is the density of the smaller pieces of gold
    13·1 answer
  • What is the correct way to show carbon dioxide in the gas phase?
    5·1 answer
  • An object with a mass of 0.225 kg and density of 2.89 g/cm3 measures 34mm in length and 46mm in width. what is the hight of the
    12·1 answer
  • Give IUPAC name
    5·1 answer
  • Determine the hydroxide ion concentration in<br> a solution that is 0.028 M NaOH.
    8·1 answer
  • How many grams of potassium carbonate are needed to make 300ml of a 4.5M solution?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!