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3 years ago

Explain the first three steps of scientific inquiry

1 answer:

5 0

1. Observation-- making observations and taking notes about what you see, smell, hear, think, etc.
2. Question-- developing a question to test your observations.
3. Hypothesis-- creating an educated guess as to the answer of your question.

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Is this true or false?

IceJOKER [234]

Answer:

true

Explanation:

7 0

3 years ago

Which best describes how sediment forms?

Svetllana [295]

Inside the ground, different types of rocks and minerals are pressed together. The pressure causes the rocks to go together and form the sediments. Examples of sedimentary rocks are: sandstone, siltstone, and shale.

3 0

3 years ago

if kept at a constant temperature, what is the concentration at 865s if the initial concentration was 0.0225M

Anestetic [448]

Answer:

$[SO_2Cl_2]=0.0175M$

Explanation:

Hello!

In this case, considering that the decomposition reaction of SO2Cl2 is first-order, we can write the rate law shown below:

$r=-k[SO_2Cl_2]$

We also consider that the integrated rate law has been already reported as:

$[SO_2Cl_2]=[SO_2Cl_2]_0exp(-kt)$

Thus, by plugging in the initial concentration, rate constant and elapsed time we obtain:

$[SO_2Cl_2]=0.0225Mexp(-2.90x10^{-4}s^{-1}*865s)$

$[SO_2Cl_2]=0.0175M$

Best regards!

8 0

2 years ago

What do the toxic chemicals used in paving roads, rocket fuel, and rat poison have in common? What do the toxic chemicals used i

MArishka [77]

Answer: Arsenic

Explanation:. Arsenic, is found in several different chemical forms in paving roads--- arsenic release from asphalt, rocket fuel--- from combustion of fuel causing release of arsenic and carbon monoxide and among the composition of rat poison in different oxidation states,which can lead to toxicity called arsenic poisoning--- which occurs when much arsenic is accumulated in the body causing acute and chronic adverse health effects, from diarrhea to cancer.

3 0

3 years ago

If two gases are present in a container, the total pressure in the container is equal to

dmitriy555 [2]

Answer: the sum of the partial pressures of the individual gases.

Explanation:

According to Dalton's Law of partial pressure, the total pressure of a mixture of gases is equal to the sum of the partial pressures which each individual gas would exert if it were confined alone in the volume occupied by the mixture.

Hence, Ptotal = P1+ P2

where Ptotal is the total pressure

P1 and P2 are the partial pressures exerted seperately by the individual gases 1 and 2 that make up the mixture.

8 0

3 years ago