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
Anna007 [38]
3 years ago
9

The length breadth and thickness of a brick is 18cm 8 cm and 5cm respictively find the area of the widest part of rhe brick​

Chemistry
1 answer:
Sunny_sXe [5.5K]3 years ago
4 0

Answer:

144cm²

Explanation:

Given dimensions:

     Length x breadth x thickness

        18cm  x   8cm    x    5cm

The widest part of this figure will be the face containing the length and the breadth.

The breadth is the width of the figure;

Area of the widest part  = length x breadth = 18cm x 8cm  = 144cm

The area of the widest part of the figure is 144cm²

You might be interested in
Where does most of the mass of an atom come from?
Sedaia [141]

Where does most of the mass of the universe come from? In ordinary matter, most of the mass is contained in atoms, and the majority of the mass of an atom resides in the nucleus, made of protons and neutrons. Protons and neutrons are each made of three quarks.

7 0
3 years ago
What does Q=mcdeltaT stand for ?
AVprozaik [17]
Its a formula relating to specific heat capacity

Δθ refers to the change in temperature

Q refers to the energy neededto raise the temperature of an object by the change in temperature

m stands for the mass of tje object

c is the specific heat capacity which is the amount of energy needed to heat up an object per unit mass
4 0
3 years ago
How many milliliters of a 17% benzalkonium chloride stock solution would be needed to prepare a liter of a 1:200 solution of ben
Nuetrik [128]

Here is the complete question.

Benzalkonium Chloride Solution ------------> 250ml

Make solution such that when 10ml is diluted to a total volume of 1 liter a 1:200 is produced.

Sig: Dilute 10ml to a liter and apply to affected area twice daily

How many milliliters of a 17% benzalkonium chloride stock solution would be needed to prepare a liter of a 1:200 solution of benzalkonium chloride?

(A) 1700 mL

(B) 29.4 mL

(C) 17 mL

(D) 294 mL

Answer:

(B) 29.4 mL

Explanation:

1 L  =   1000 mL

1:200 solution implies the \frac{weight}{volume} in 200 mL solution.

200 mL of solution = 1g of Benzalkonium chloride

1000 mL will be \frac{1000mL}{200mL}=\frac{1g}{xg}

200mL × 1g = 1000 mL × x(g)

x(g) = \frac{200mL*1g}{1000mL}

x(g) = 0.2 g

That is to say, 0.2 g of benzalkonium chloride in 1000mL of diluted solution of 1;200 is also the amount in 10mL of the stock solution to be prepared.

∴ \frac{10mL}{250mL}=\frac{0.2g}{y(g)}

y(g) = \frac{250mL*0.2g}{10mL}

y(g) = 5g of benzalkonium chloride.

Now, at 17% \frac{weight}{volume} concentrate contains 17g/100ml:

∴  the number of milliliters of a 17% benzalkonium chloride stock solution that is needed to prepare a liter of a 1:200 solution of benzalkonium chloride will be;

= \frac{17g}{5g} = \frac{100mL}{z(mL)}

z(mL) = \frac{100mL*5g}{17g}

z(mL) = 29.41176 mL

≅ 29.4 mL

Therefore, there are 29.4 mL of a 17% benzalkonium chloride stock solution that is required to prepare a liter of a 1:200 solution of benzalkonium chloride

4 0
3 years ago
What does scientist use to deign their experiments
joja [24]

Answer:

a chart

Explanation:

a chart a chart is the answer

8 0
2 years ago
Determine the mass of 4.25x10^26 formula units of barium hydroxide​
Andru [333]

4.25x10x^{26}

5 0
3 years ago
Other questions:
  • Alpha-emitting substances, such as radon gas, can be a serious health hazard only if A. your eyes are open. B. their radiation s
    12·2 answers
  • Explain how scientific knowledge and reasoning can help us make difficult decisions.
    15·1 answer
  • Many popular beverages are sold in two-kilo bottles. true or false
    13·1 answer
  • Question 26(Multiple Choice Worth 1 points) [01.03]Which of the following statements does not support scientific evidence of the
    5·1 answer
  • Janice is given a mixture of alcohol and water. The teacher tells her that she can use temperature to separate these compounds.
    13·2 answers
  • When liquid detergent dissolves in water, which is the solvent and which is the solute
    6·1 answer
  • Rank the following elements by effective nuclear charge, Zeff, for a valence electron.F LI Be B N
    5·2 answers
  • A family takes a summer vacation to Florida. They drive for 8 hours before stopping at a hotel for the night. They
    11·1 answer
  • Marcus read that systems provide feedback, or the return of information. Feedback can either cause a change in the system or kee
    6·1 answer
  • Why are gamma rays not able to reflect off a mirrors surface
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!