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
Oksanka [162]
2 years ago
9

Which of the following is an inorganic compound?

Physics
2 answers:
DiKsa [7]2 years ago
8 0

Answer:

b. aluminium, hydrogen and oxygen

Explanation:

Organic compounds are generally formed by the combination of these elements: Carbon, Hydrogen, Oxygen, Nitrogen and Sulphur. This discards options a and d.

As special case, organobromides are organic compounds that contain carbon bonded to bromine. This discards option c.

Then the correct option is b. An example of an inorganic compound formed with aluminium, hydrogen and oxygen is aluminium hydroxide, Al(OH)3, which is found in nature as the mineral gibbsite.

Lyrx [107]2 years ago
7 0

Answer:

It is b

Explanation: aluminum is a man made object or metal

You might be interested in
The speed of sound at room temperature (20 degrees Celsius) is 343 m/s. If the speed of sound in air increases about 0.60 m/s fo
stepan [7]

Answer:

36,67 degrees Celsius

Explanation:

The simplest way to approach this problem, given the information provided, is to simply start with the speed difference.

Goal: 353 m/s

Start: 343 m/s (at 20 degrees Celsius).

Difference: 10 m/s

Variation rate: 0.60 m/s/d (d = degree)

d = \frac{10 m/s}{0.60 m/s/d}  = 16,67 d

So, 16,67 degrees more than the starting point.

The temperature will then be 36.67 degrees Celsius, when the sound travels at the speed of 353 m/s.

4 0
3 years ago
Help please<br> It’s kinda urgent
user100 [1]

Answer:

a = - 50 [m/s²]

Explanation:

To solve this problem we simply have to replace the values supplied in the given equation.

Vf = final velocity = 0.5 [m/s]

Vi = initial velocity = 10 [m/s]

s = distance = 100 [m]

a = acceleration [m/s²]

Now replacing we have:

(0.5)^{2}-(10)^{2} = 2*a*(100)\\0.25-10000=200*a\\200*a=-9999.75\\a =-50 [m/s^{2} ]

The negative sign of acceleration means that the ship slows down its velocity in order to land.

4 0
2 years ago
Engineers tasked with building a car bumper need high-quality plastic that is readily available. They found the material polycar
jenyasd209 [6]

Answer:

The material must be durable (quality of the material requirement)

Explanation:

The design criteria set for the materials used for technological design are;

1) The materials should be affordable (less costly)

2) The materials should be last for a long duration (high durability)

3) The material should be readily available (easily sourced)

Therefore, given that the engineers initially had the criteria for the required plastic to be of high quality and to be readily available, and that the poly-carbonate they found is long lasting and not too costly, the criteria met that was set initially was the  quality criteria of durability.

7 0
3 years ago
Read 2 more answers
a ball thrown vertically downwatd stikes a horizontal surface with a speed of 15 meters per seconds if then bounces and reaches
Anna71 [15]

but why was it thrown is the real question

3 0
3 years ago
An electric motor moves a chain that pulls the roller coaster car 180 meters to the top of the first hill. The chain exerts a fo
MrRa [10]
The energy added here is potential energy since it is moving upward 180 meters in a gravitational field.  This is then turned into KE when it rolls down.  2524N x 180m = 454,320J
3 0
3 years ago
Read 2 more answers
Other questions:
  • A block with mass m = 4.3 kg is attached to two springs with spring constants kleft = 35 N/m and kright = 48 N/m. The block is p
    11·1 answer
  • When the power in their house unexpectedly went off, Radhika's mother said that she would check and replace the fuse. What exact
    13·1 answer
  • What is the simple average of these two velocities (0m/s, 0.4m/s)​
    15·1 answer
  • DVDs and Blu-ray disks store information in patterns that are read by laser light. The shorter the wavelength of the light, the
    5·2 answers
  • On February 15, 2013, a superbolide meteor (brighter than the Sun) entered Earth’s atmosphere over Chelyabinsk, Russia, and expl
    6·2 answers
  • Why do people eat vegetables? Not just to stay healthy!!! But why else do we eat and need vegetables?
    7·1 answer
  • What is the potential energy of a 150 kg diver standing on a diving board that is 10 m high?
    5·2 answers
  • Activity log - Chest and Back Record your time and activity below and in your unit fitness log. If a particular category does no
    9·2 answers
  • How much thermal energy is required to raise the temperature of a<br> 55-g glass ball by 15 °C?
    7·1 answer
  • 12. Suppose a person is covered head to foot by wool clothing with average thickness of 2.00 cm and is transferring energy by co
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!