Evaluate the procedure used in this experiment by considering the properties used to identify the unknowns and the number of knowns that were tested. Revise the experimental design by proposing ways to modify the experiment to increase your certainty in the identity of the unknowns

Answers

Answer 1

Answer: Hey! its a fellow classmate from K-12! Alright so what I put for the lab report question is :  The properties used to identify the metals were mass, length, and volume. These were the extensive properties that I used. I would propose to test color, malleability, melting points, and to test how shiny or dull it is. I would propose these to increase the certainty in the identity of the metals.  Btw, please mark me brainliest.

Explanation: When it says evaluate It pretty much means " tell me what you used to figure out the identity of the unknown metals".

The part where it says " propose, revise...blah...blah blah means " How could you increase your chance to get the right metal identity, henceforth saying what properties and tools could we use to make this experiment more better; better chances of getting the right identity of metal.


Related Questions

Select all of the choices that are true regarding tides...

Spring tides occur when the gravitational pull of the sun and moon are in line with each other, while neap tides occur when the gravitational pull of the sun and moon are perpendicular to each other

Tides only occur in the ocean

Tidal forces are primarily caused by the moon's gravitational pull

Larger bodies of water have more noticeable tides

Tidal forces are caused by a combination of the gravitational pull of the Moon and the Sun

Spring tides occur when the gravitational pull of the sun and moon are perpendicular to each other, while neap tides occur when the gravitational pull of the sun and moon are in line with each other

Answers

Answer:

a,b,c,e

Explanation:

please mark as brainlists

How does glucose enter the cell.

Answers

Glucose enters most cells by facilitated diffusion. There seem to be a limiting number of glucose-transporting proteins. The rapid breakdown of glucose in the cell (a process known as glycolysis) maintains the concentration gradient.

Beaches are monitored to protect public health. Waterborne pathogens can cause illnesses. Which of the following ways can pathogens enter coastal waters?
Leaking sewer pipes and untreated wastewater
Precipitation through the water cycle
The changing of low tide to high tide
Through the interactions of marine organisms and plants

Answers

Waterborne pathogens can enter coastal waters via leaking sewer pipes and untreated wastewater.

Sewage and untreated wastewaters are filled with microbes some of which are capable of causing diseases to humans and livestock if given the opportunity. Hence, the seeping of these waters into coastal water is a risk to humans who might want to swim or make use of coastal waters.

Precipitation, changing of tides and the interactions of marine organisms and plants will ordinarily not form pathways through which pathogens can gain access to coastal waters.

More on waterborne pathogens can be found here: https://brainly.com/question/2269083?referrer=searchResults

Question 1 of 5
How do stories differ from scientific explanations?
A. Stories avoid presenting bias.
B. Stories are based on evidence.
C. Stories are based on imagination.
D. Stories are always negative.
SUBMIT

Answers

The answer is C. Stories are based on imagination
The answer is C stories are based

the middle primary brain vesicle, the mesencephalon, gives rise to which adult brain structure?

Answers

The midbrain

The term mesencephalon means "midbrain." As it develops from a primary brain vesicle to a secondary brain vesicle and finally an adult brain structure, it retains its name--the midbrain.

Sofia’s favorite meal is breakfast, and she is careful to include healthy components along with her favorite foods. She knows breakfast helps to keep her energy levels up until lunch. Sophia's digestive system helps her body get energy from food. How do the nutrients from food get to the body's cells? A. The nutrients are distributed by the digestive system to the parts of the body that need them. B. The nutrients are picked up and transported around the body by blood from the circulatory system. C. The nutrients are absorbed directly into the cells that need them. D. The circulatory system brings nutrients to the digestive system to be processed for the cells.

Answers

Answer: c

Explanation:because it needs cells I think…

The nutrients from the food get to the cells of the body by the action of two organ systems i.e. the digestive system and the circulatory system.

What is the role of the digestive system?

The digestive system may be defined as a type of organ system that significantly deals with the breakdown of food substances into simpler components that can easily be consumed by the body.

According to the context of the question, the food that we eat reaches the stomach through the esophagus where multiple enzymes perform their roles. After the stomach, the food may be passed to the small intestine which is absorbed here and then the nutrients assimilate in the blood.

Through the blood, the nutrient can be transported around the body by blood from the circulatory system. Thus, the correct option for this question is B.

To learn more about the Transport of nutrients, refer to the link:

https://brainly.com/question/26228299

#SPJ2

What way does ribosomes mobe.

Answers

forward
The ribosome moves forward on the mRNA, codon by codon, as it is read and translated into a polypeptide (protein chain). Then, once translation is finished, the two pieces come apart again and can be reused.

The presence of which type of intercellular connections between endothelial cells of brain capillaries results in the blood–brain barrier?.

Answers

The answer is right junctions

Psychology Short Essay
100 points and Brainliest quick!!!!!!!


40. Discuss some of the reasons suggested that we need sleep, and then explain what happens
during the early and late stages of sleep.

Answers

Answer:

Here is your answers hope I helped!

Explanation:

Here are some reasons why we need to sleep.

If you don't sleep enough or sleep well it's going to cause types of headaches, insomnia, or other types of syndromes etc, this could also lead to stress and anxiety.

If you sleep well your body and muscles well be healthy and relaxed, it also depends how much hours you sleep if you oversleep too much it could led to narcolepsy

Stages

The first stage of sleep, known as light stage sleep, is one of the shortest, lasting five to ten minutes on average. In this stage, the mind and body begin to 'slow down,' causing us to feel drowsy and relaxed.

Stage 2 and stage 3 can have light or deep Slow waves, delta sleep, or deep sleep it depends.

Stage 4 which is the last stage is called the REM or aka rapid eye movement, this stage causes your brain activity to increase and this stage is where you might be dreaming the most.

Prolactin (PRL) is a pituitary hormone that regulates milk production in lactating mammals.

a. True
b. False

Answers

Answer:

true

Explanation:

Look at the diagram Which structure holds the original code from the DNA gene?​

Answers

Answer:

The answer is 4/D)4. Don't expect me to get scientific in this, I'm using brainly and coursehero after all. Sorry for being a year late, hopefully it took you a year to finish the test. . .

Explanation:

K12/Keystone

1. Transcription happens in the _______ and translation happens at the _________.
a. mitochondria, chloroplasts
b. chloroplasts, mitochondria
c. nucleus, ribosome
d. ribosome, nucleus

2. Proteins are long chains of _________ assembled by _____ bringing them to the ribosomes.
a. nucleotides, mRNA
b. mRNA, nucleotides
c. amino acids, tRNA
d. tRNA, amino acids

3. What are three amino bases on the mRNA strand that codes for a specific amino acid is? What is the complementary bases on a tRNA molecule called?
a. Genetic code, DNA
b. DNA, RNA
c. Codon, anticodon
d. bird, dog

Answers

Answer:

1. C

2. C

3. C

Explanation:

Hope this helps.

Which structure is found in all eukaryotic cells?


flagella


large central vacuole


cilia


Golgi apparatus

Answers

Answer:

The nucleus

Explanation:

eukaryotic cells have a the nucleus, which means the cells DNA is surrounded by a membrane. Therefore, the nucleus houses the cells DNA

What type of cell is shown above?
A.
prokaryotic
B.
plant
C.
eukaryotic
D.
animal

Answers

Answer:

A

Explanation:

The awnser is A ___________

why would you not use green light and white light if you wanted to determine the dependence of specific color wavelengths on the rate of photosynthesis?

Answers

Given our understanding of the situation, we can confirm that the use of green or white light would not be ideal for the experiment at hand because it will not yield any useful information.

In this experiment, we wish to determine the dependence of specific color wavelengths on the rate of photosynthesis. The use of white light for this experiment will defeat the purpose, given that white is the naturally occurring color of light and the available data on this is vast.

Furthermore, we would not use green colored light because it will not be effective. The effectiveness of the color of light that we decide to use will be based on the absorption rate of the light at a cellular level. Green light is known to not be well absorbed by the chlorophyll of plants and therefore will not be useful.

To learn more visit:

https://brainly.com/question/1172560?referrer=searchResults

help 4-6 pls!!??!!!!!!!!!!!!!!!

Answers

Answer:

Hopefully this is correct!! Not sure...

Explanation:

4) D

5) A

6) C

D, A, C are the right answers, I think

Plant cells like ____ hair cells have a long projection to increase the surface area for absorption of water

Answers

Answer:

root hairs

Explanation:

QUIK QUESTION: have any of y'all be on probation lol? And if so help a gurley out what ya gotta do?

Answers

Answer:

yes

Explanation:

6. What are convection currents?

Answers

Convection currents are fluid that result from convention this can be a Pacific plate floating

What features distinguish annelids from roundworms?

Answers

Answer:

Annelids have a well developed mesoderm while round worms lack a mesoderm.

Annelids are segmented worms whereas round worms are not segmented.

Annelids have a true coelom while round worms have a pseudo coelom.

Sưa Sống ở đâu cách di chuyển cấu tạo tao dinh dưỡng bằng gì

Answers

Explanation:

Sưa Sống ở đâu cách di chuyển cấu tạo tao dinh dưỡng bằng gì

can you write questions in english

Choose one of the food chains
shown within the food web in Figure 4-3. Write
a paragraph describing the feeding relation-
ships among the organisms in the food chain.

Answers

Answer:

I can't see the figure so sorry I can't answer

Is the circled karyotype a male or female?


female


male

Answers

Answer: A normal female karyotype is written 46, XX, and a normal male karyotype is written 46, XY.

Explanation:

A normal female karyotype is written 46, XX, and a normal male karyotype is written 46, XY.


Explanation:

Match each brachial spinal nerve with the correct label.

Answers

Answer:

yes those are the correct answers labeled.

Explanation: post protected

Do viruses consume energy in order to live.

Answers

Answer:

Viruses are too small and simple to collect or use their energy – they just steal it from the cells they infect. Viruses only need energy when they make copies of themselves, and they don't need any energy at all when they are outside of a cell.

Explanation:

Answer:

yes and no

Explanation:

Viruses only need energy when they make copies of themselves, and they don't need any energy at all when they are outside of a cell.

why did active transport need energy?&where it get it from?​

Answers

Answer:

Active transport needs energy because it is not a passive process.The molecules has to go against the concentration gradient.Hence, it requires energy to be carried out by the carrier proteins.

The answer is not full but I hope it helps

What neutron type carries impulses WITHIN the central nervous system?

Answers

Answer:

NEURONS

Explanation:

It can be sensory or motor neurons

Where is most of the water on Earth found?

Answers

Answer:

in the oceans

Explanation:

Over 97 percent of the earth's water is found in the oceans as salt water. Two percent of the earth's water is stored as fresh water in glaciers, ice caps, and snowy mountain ranges. That leaves only one percent of the earth's water available to us for our daily water supply needs.

Why do the cells in all living things need energy?


to help them decompose


to fuel their chemical reactions


to communicate with other cells


so they can block sunlight

Answers

Answer:

I think is the second one

Answer:

to fuel their chemical reactions

Give an example of an attitude which you have observed between people in different levels of society.

Answers

Explanation:

I have been seen a person who always want eat a food that I have never heard it before when I am born. he cherish it Soo much

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