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mariarad [96]
3 years ago
8

In this simulation what do you think the bread and cheese separately represent, the atom or the molecule?

Chemistry
1 answer:
Svetllana [295]3 years ago
8 0

Answer:

the atom

Explanation:

The bread and cheese separately represent the atom because both bread and cheese are different from one another and we cannot assume it as a molecule because molecules formed when the group of atoms combine together by making bonds with each other and we know that bread and cheese did not make bonds with each other, they only attached, so we called them atoms not molecule.

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What two factors must be held constant for density to be a constant ratio?
Neko [114]

Answer:

Temperature and Pressure

Explanation:

Temperature and pressure cause change in volume.

So any change in volume will alter the ratio of density as given by equation of density.

Density = mass/ volume

Change in volume will alter the ratio.

Kindly mark it branliest if the answer is little bit satisfying.

7 0
3 years ago
Which of these is the main difference between aerobic respiration and anaerobic respiration?
Anettt [7]

Answer:

Aerobic Respiration

It can be found in the cytoplasm and the mitochondria.

Glucose breaks down into carbon dioxide and water.

Anaerobic Respiration

It can be found only in the cytoplasmic.

Glucose breaks down into ethyl alcohol, carbon dioxide and energy

6 0
3 years ago
"you have a mixture made os two substances, one with a higher density than the other. how could you separate the substances in t
shtirl [24]
The correct answer is <span>D) centrifuge the mixture because the substance with the highter density will be pulled to the bottom

When things spin around, like a centrifuge, the centripetal force draws things towards the middle. If you make it a bit like a spiral and put it sideways, then the denser thing will go to the bottom while the less dense ones will remain on the outside. </span>
3 0
4 years ago
Read 2 more answers
A waste treatment pond is 50 m long and 25 m wide, and has an average depth of 2 m. The density of the waste is 75.3lbm/ft^3 .Ca
umka21 [38]

Answer:

W = 6.65 \cdot 10^{6} lbf

Explanation:

To find the weight (W) of the pond contents first we need to use the following equation:

W = m\cdot g   (1)

Where m the mass and g is the gravity  

Also, we have that the mass is:

m = \rho*V  (2)    

Where ρ is the density and V the volume

We cand calculate the volume as follows:

V = L*w*d   (3)

Where L is the length, w is the wide and d is the depth  

By entering equation (2) and (3) into (1) we have:

W = \rho*L*w*d*g

W = 75.3 lbm/ft^{3}*50 m*25 m*2 m*9.81 m/s^{2}  

W = 75.3 lbm/ft^{3}*\frac{(1 ft)^{3}}{(0.3048 m)^{3}}*\frac{0.454 kg}{1 lbm}*50 m*25 m*2 m*9.81 m/s^{2} = 2.96 \cdot 10^{7} N}*\frac{0.2248 lbf}{1 N} = 6.65\cdot 10^{6} lbf              

Therefore, the weight of the pond is 6.65x10⁶ lbf.

I hope it helps you!

6 0
4 years ago
Una teoría puede estar respaldada por pruebas considerables.?????
AlladinOne [14]
Respuesta:

Yes.

Explicación:


Las teorías se pueden mejorar o modificar a medida que se recopila más información para que la precisión de la predicción sea mayor con el tiempo.
6 0
3 years ago
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