All scientists observing the same event will record identical descriptions.

Answers

Answer 1

Answer: TRUE OR FALSE
always find the important keyword in this case IDENTICAL which means: similar in every detail; exactly alike.
FALSE because scientists all have different ways of thinking and they might observe things from a different perspective.

Answer 2

Answer:

Answer:

FALSE

Explanation:

i got it right

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Solve and show work. Li2S + 2 HNO3 --> 2 LiNO3 + H2S (a) Calculate the mass of lithium sulfide that will react with 250 mL of 0.65 M nitric acid (b) How many mL of 9.6 M HNO3 are needed to make 250 mL of 0.65 M HNO3 solution? (c) How many grams of nitric acid are needed to make 750 mL of 9.6 M HNO3.

Answers

Li2S + 2 HNO3 --> 2 LiNO3 + H2S

Li2 S + H2 N2 O2 --> Li2 N2 O5 + H2 S

Li S + H2 N2 O5 -> Li N2 O5 + H2 S

Li2 S2 + H4 N4 O10 --> Li2 N4 O10 + H4 S2

Li^2 S^2 + H^4 N^4 O^10 --> Li^2 N^4 O^10 + H^4 S^2

In your own words, compare and contrast transverse and longitudinal waves. Be sure to include at least one similarity and one difference.

Answers

A transversewave is a wave is a wave in which the particles in the medium oscillate in a direction that is perpendicular or at 90 degrees to the direction in which the wave propagates. Light waves or electromagnetic waves are a good example of transverse waves. When an electromagnetic wave propagates, the medium in which it propagates vibrates in a direction perpendicular to the direction of travel.

A longitudinal wave is a wave in which the particles of the medium oscillate in a direction parallel to the direction in which the wave is travelling. Sound waves are good examples of longitudinal waves. When sound propagates, the particles of the medium which it travels through will vibrate in the direction in which the wave is travelling.

Similarities

Both transverse and longitudinal waves carry energy.
Both transverse and longitudinal waves obey the wave equation.
Both transverse and longitudinal waves show behavior such as refraction, reflection, absorption, diffraction, etc.

Differences

The main difference is that for longitudinal waves, the particles in the medium will vibrate in the direction of the wave and that for transverse waves, the motion of the particles in the medium is in a direction perpendicular to the direction of propagation of the wave.

If an industrial worker knows that his chemical process is 87.3% efficient and he needs tocollect 100.0g of the product when all is said and done, what should his theoretical yield
be (in grams)?

Answers

I legitimately think it's 87.3 grams

Which statement best compares coastal ecosystems to open ocean ecosystems?Coastal ecosystems include abyssopelagic depths, and open ocean ecosystems do not.
Coastal ecosystems have less sunlight, fewer nutrients, and less diversity than open ocean ecosystems.
Coastal ecosystems have a greater range of water pressures than open ocean ecosystems.
Coastal ecosystems have more sunlight, more nutrients, and higher levels of productivity than open ocean ecosystems

Answers

The statement that best compares coastal ecosystems to open ocean ecosystems is Coastal ecosystems have more sunlight, more nutrients, and higher levels of productivity than open ocean ecosystems.

What is ecosystem?

ecosystems can be regarded as the biological community of interacting organisms as well as their physical environment.

However, there is coastal ecosystems and open ocean ecosystems, but there are more sunlight, more nutrients, and higher levels of productivity in Coastal ecosystems than ocean ecosystems.

Learn more about ecosystems at:

brainly.com/question/2189549

Answer:

I believe the last one is correct Coastal ecosystems have more sunlight, more nutrients, and higher levels of productivity than open ocean ecosystems

How many grams of KNO3 would recrystallize from 100 g of water, if a saturated solution were cooled from 50 degrees celcius to 20 degrees celcius?

Answers

Answer:

$m_(cryst)=58g$

Explanation:

Hello there!

In this case, according to the attached solubility chart, it is possible for us to realize that about 88 grams of KNO3 are soluble at 50 °C but just 30 grams are soluble at 20 °C in the same 100 g of water.

In such a way, the crystalized mass of this solute can be calculated by subtracting the mass at 50 °C and the mass at 20 °C:

$m_(cryst)=88g-30g\n\nm_(cryst)=58g$

Best regards!

Which of the statement below states the negative impact did chemistry have on society through the production and use of chlorofluorocarbons (CFCs)? A. Hazardous coolants in refrigeration units were replaced. B. Better refrigeration reduced loss of food through spoilage. C. Lower levels of ozone allowed more ultraviolet radiation to reach Earth. D. Fire safety improved through the use of fire extinguishers.

Answers

I think the correct answer from the choices listed above is option A. The statement that states a negative impact of chemistry on the society is that hazardous coolants in refrigeration units were replaced. One example of this coolant is the production and use of chlorofluorocarbons (CFCs) which replaced by more safer coolants.

Answer:

C. Lower levels of ozone allowed more ultraviolet radiation to reach Earth.

Explanation:

got it right on edge 23

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