All categories

2 years ago

Do you think thar solids can undergo convection? Explain.

1 answer:

6 0

No because <span>Convection works because hotter faster moving molecules have a lower density and therefore rise to the surface. In a solid the molecules can't move relative to each other they can only vibrate. </span>

You might be interested in

A solution of acetic acid and water contains 205.0 g L-1 of acetic acid and 820.0 g L-1 of water. Compute the density of the sol

LekaFEV [45]

Answer:

$\rho_t=1025000 gmL^{-1}$

Explanation:

From the question we are told that:

Density of acetic acid $\rho_a=205 gL^{-1}$

Density of Water $\rho_w=820 gL^{-1}$

Generally the equation for Solution Density is mathematically given by

$\rho_t= \rho_w+\rho_a$

$\rho_t=205+820$

$\rho_t=1025 gL^{-1}$

$\rho_t=1025000 gmL^{-1}$

6 0

2 years ago

5. After a day of testing race cars, you decide to

kvasek [131]

Noice but I don’t get why was this necessary

8 0

3 years ago

Serial dilution problem: Six test tubes are placed in a rack. To each tube add 4 mL of saline solution. Now to the first tube ad

ArbitrLikvidat [17]

Answer:

The dilution factor of protein in tube # 4 is 125. Molar concentration is 0.0088 M protein

Explanation:

The dilution factor indicates how many times is more concentrated a main solution in relationship with a diluted solution. In this case, the main solution is in tube #1. For calculating the dilution factor and molar concentration in tube #4 we need the main solution concentration which comes from next equation:

Initial volume * initial concentration = final volume * final concentration

0.5 mL * 10M = 5mL * final concentration

1.1 M = final concentration = main solution concentration

Applying the same equation for remain tubes we have 0.22 M for tube #2, 0.044 M for tube # 4 and 0.0088 for tube # 4.

Dilution factor = Main solution concentration/tube 4 concentration

Dilution factor = 1.1/0.0088 = 125

I hope my answer helps you

3 0

3 years ago

What are two ways that atoms of different elements are different?

marishachu [46]

Answer:Explanation:Protons and other subatomic particles will be discussed a little later. The atoms of different elements are different from each other because they have different numbers of protons. The graphic below illustrates this point by showing the atoms of two elements in the containers of oxygen and hydrogen.

7 0

2 years ago

When an experimenter draws a conclusion that he assumes will apply to all situations set up similarly to his test situation, eve

kirill115 [55]

Answer:

Deductive reasoning.

Explanation:

Hello,

Deductive reasoning lies on the proposal of a hypothesis and its subsequent substantiation before any observation is carried out since the statement says that "he assumes will apply to all situations" he's proposing something before observing it.

Best regards.

4 0

3 years ago