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
Leno4ka [110]
3 years ago
12

TRUE OR FALSE? Alloys are used more than pure metals because they are generally softer and less likely to react with air or wate

r. WILL GIVE BRAINLIEST
Chemistry
2 answers:
d1i1m1o1n [39]3 years ago
8 0

Answer:

False

Explanation:

They’re used cause they’re generally harder than pure metals

Vitek1552 [10]3 years ago
5 0

Alloys are used much more than pure metals because they are generally <u>stronger</u> and less likely to react with air or water...

So I would say false

You might be interested in
Oxidation is _______?
Vika [28.1K]

Answer:

the process or result of oxidizing or being oxidized

6 0
3 years ago
10. At 573K, NO2(g) decomposes forming NO and O2. The decomposition reaction is second order in NO2 with a rate constant of 1.1
leva [86]

Answer:

48.67 seconds

Explanation:

From;

1/[A] = kt + 1/[A]o

[A] = concentration at time t

t= time taken

k= rate constant

[A]o = initial concentration

Since [A] =[A]o - 0.75[A]o

[A] = 0.056 M - 0.042 M

[A] = 0.014 M

1/0.014 = (1.1t) + 1/0.056

71.4 - 17.86 = 1.1t

53.54 = 1.1t

t= 53.54/1.1

t= 48.67 seconds

Hence,it takes 48.67 seconds to decompose.

6 0
3 years ago
Different "substances" are forms of matter (having volume and taking up space) with different _______________ from each other. a
ExtremeBDS [4]

Answer:

properties

Explanation:

The properties of matter are the various ways in which matter behaves under certain circumstances.

Various substances have different volumes and shapes. These differences account for the various properties of matter.

3 0
3 years ago
What is the volume that you should dilute 30mL of a 12.0M H2SO4 solution to obtain a 0.160M H2SO4 solution?
shutvik [7]
To solve this problem, the dilution equation (M1 x V1 = M2 X V2) must be used. The given values in the problem are M1= 12.0 M, V1= 30 mL, and M2= 0.160 M. To solve for V2,
V2=M1xV1/M2
V2= (12x30)/0.16
V2= 2,250 mL.
The correct answer is 2.25 L.
8 0
3 years ago
Alum is a compound used in a variety of applications including cosmetics, water purification, and as a food additive. It can be
vlabodo [156]

Answer:

The theoretical yield of alum is 19.873 grams and percent yield for this alum synthesis is 45.33%.

Explanation:

Mass of bottle = 10.221 g

Mass of bottle with aluminium pieces = 11.353 g

Mass of aluminium = 11.353 g - 10.221 g = 1.132 g

Mass of alum and bottle = 19.230 g

Mass of alum =  19.230 g - 10.221 g = 9.009 g

Experimental yield of alum =  9.009 g

Theoretical yield of alum:

2Al(s) +2 KOH(aq) +4H_2SO_4(aq)+10 H_2O(l) \rightarrow 2 KAl(SO_4)_2.12 H_2O(s)+3H_2(g)

Moles of aluminium = \frac{1.132 g}{27 g/mol}=0.041926 mol

According to reaction, 2 moles of aluminum gives 2 moles of alum.

Then 0.041926 mol aluminium will give :

\frac{2}{2}\times 0.041926 mol=0.041926 mol of alum.

Mass of 0.041926 moles of alum:

0.041926 mol × 474 g/mol= 19.873 g

Theoretical yield of alum = 19.873 g

Percentage yield:

\% Yield =\frac{\text{Experimental yield}}{\text{Theoretical yield}}\times 100

Percentage yield of the alum:

\% Yield =\frac{ 9.009 g}{19.873 g}\times 100=45.33\%

The theoretical yield of alum is 19.873 grams and percent yield for this alum synthesis is 45.33%.

7 0
3 years ago
Other questions:
  • Which agent of erosion can create a limestone cave?
    15·2 answers
  • Tetraphosphorous decoxice (P4O10) reacts with water to produce phosphoric acid.
    15·1 answer
  • What is the least amount of energy that can be emitted by an excited electron in a hydrogen atom falling from an excited state d
    5·2 answers
  • scientist have found many marine fossils on the mountain far from any ocean or sea what is the best explanation for these fossil
    10·1 answer
  • What is the h+ concentration for an aqueous solution with poh = 3.35 at 25 ∘c? express your answer to two significant figures an
    8·1 answer
  • . Deltas form mainly due to
    7·2 answers
  • Which best describes the soils found in the southeastern United States?
    12·2 answers
  • What is the compound name of phosphate ?
    10·1 answer
  • Scientific Inquiry begins with?
    11·1 answer
  • Which island is the oldest??
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!