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
lara31 [8.8K]
3 years ago
13

What is the density of a board dimensions are 5.54 cm x 10.6 cm X 199 cm and whose mass is 28.6kg

Chemistry
1 answer:
exis [7]3 years ago
4 0

Answer:

d=2.44\ g/cm^3

Explanation:

Given that,

The dimensions of the board is 5.54 cm x 10.6 cm X 199 cm.

The mass of the board is 28.6 kg.

Since, 1 kg = 1000 grams

28.6 kg = 28.6 × 1000 g = 28600 grams

Density = mass/volume

So,

d=\dfrac{28600\ g}{(5.54\times 10.6\times 199)\ cm^3}\\\\d=2.44\ g/cm^3

So, the density of a board is 2.44\ g/cm^3.

You might be interested in
Why is Jupiter so much larger than earth ? Check all that apply .
Elina [12.6K]

Answer:   Its so much larger because it has a core.

Explanation:

Jupiter is proven to have a core, the planet still could have formed that core through disk instability. Enough dust could have collected and cemented together in the dense gas to form a core many times larger than the size of the Earth

7 0
3 years ago
The solute will dissolve quicker if the solute is more?
Vitek1552 [10]

Answer:

I think D. settled :)

Explanation:

5 0
3 years ago
Read 2 more answers
A certain shade of blue has a frequency of 7.26 × 1014 Hz. What is the energy of exactly one photon of this light?
Gekata [30.6K]
7.20 it the energy because


10\7.26 is 7.20
- 70
26
-20
6
6 0
3 years ago
Read 2 more answers
Predict the geometry around the central atom in SO2- A) trigonal pyramidal B) tetrahedral C) octahedral D) trigonal planar E) tr
liubo4ka [24]

<u>Answer:</u> The correct answer is Option D.

<u>Explanation:</u>

To calculate the hybridization of SO_2, we use the equation:

\text{Number of electron pair}=\frac{1}{2}[V+N-C+A]

where,

V = number of valence electrons present in central atom  (S) = 6

N = number of monovalent atoms bonded to central atom  = 0

C = charge of cation  = 0

A = charge of anion = 0

Putting values in above equation, we get:

\text{Number of electron pair}=\frac{1}{2}[6]=3

The number of electron pair around the central metal atom are 3. This means that the hybridization will be sp^2 and the electronic geometry of the molecule will be trigonal planar.

Hence, the correct answer is Option D.

3 0
3 years ago
Dating of Rock Layers
Sati [7]

Answer:

I'm sorry, we need the image to answer  it.

Explanation:

4 0
3 years ago
Other questions:
  • The activation energy for the reaction no2(g)+co(g)⟶no(g)+co2(g) is ea = 100 kj/mol and the change in enthalpy for the reaction
    13·1 answer
  • The ionization energy for a hydrogen atom is 1.31×106 J/mol. What is the ionization energy for He+?
    5·2 answers
  • A crime lab received a 235-gram sample. The sample had a molecular mass of 128.1 grams and the empirical formula is CH2O. How ma
    7·1 answer
  • One isotope of a non metallic element has a mass number of 127 and 74 neutrons whats the symbol
    15·2 answers
  • Which of these is not an example of a velocity?
    7·1 answer
  • If a sample of matter cannot be separated by physical means, what can be said with certainty about that sample?
    8·1 answer
  • How did the planets form?
    8·2 answers
  • Ethanol has the chemical formula C2H5OH. Write and balance the chemical reaction for the combustion of ethanol​
    14·1 answer
  • If you travel through a city and find that you travel 5 km in 30 minutes, you could say that your constant speed is 6 km/h. is i
    6·1 answer
  • The sun is 93 million miles from the earth approximately how many years would it take to travel from earth to the sun if a perso
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!