The total uncertainty from two readings and an end point error in using a burette is ± 0.15 cm3 What is the total percentage uncertainty in using the burette in this experiment?

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Answer 1

Answer:

Answer:

the boy needs the girl so bittayi of esey delik did fin

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If a cell is placed in salt water, water leaves the cell by _____. A. Osmosis B. Diffusion C. Active transport D. Phagocytosis
A mixture of oxygen, hydrogen, and nitrogen exerts a total pressure of 378 kPa. If the partial pressures of oxygen and hydrogen are 212 kPa and 101 kPa respectively, what is the partial pressure exerted by nitrogen?
When fossil fuels are burned, _____ is released into the atmosphere.A. oxygen B. nitrogen C. ammonia D. carbon dioxide

The element in Period 4 and Group 1 of the Periodic Table would be classified as aA. metal
B. metalloid
C. nonmetal
D. noble gas

Answers

Option A. Metal

Starting from K- Potassium up to As-Arsenic are all metals, the three elements are special: Se-Selenium(Non-Metals),Br-Bromine(Halogens),Kr-Noble gas still part of the row but not classified as metal.

Is NH3 a molecular crystal, metal, ionic crystal, or a network solid?

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Hi! NH3 is ammonia and it is a gas. It is a polar molecular solid and it can exhibit hydrogen bonding.

Answer:

Molecular Crystal

Explanation:

Hope this helps!

The component which dissolves in a solution is called the.....

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Explanation:

A solution consists of two type of substances. These are solute and solvent.

A solvent is defined as the substance present in lesser amount as compared to a solvent. A solute is able to dissolve in a solvent.

For example, sugar dissolves in water. Here, sugar is the solute and water is the solvent.

Combination of both solute and solvent results in the formation of a solution.

Whereas a solvent is a substance that is present in more quantity as compared to a solute.

Thus, we can conclude that the component which dissolves in a solution is called the solute.

The component which dissolves is called the Solute. It is dissolved by the Solvent.

What does the atomic mass describe?a. The mass of the protons in the atom
b. The mass of the nucleus of the atom
c. The mass of the neutrons in the atom
d. The mass of the electrons in the atom

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B., the mass of the nucleus of the atom.
Both the protons and the neutrons are inside the nucleus. The atomic number of an atom is the number of protons, and if you subtract the atomic number from the atomic mass you can find the number of neutrons an atom has.
So, the mass of the protons plus the mass of the neutrons, which are both inside the nucleus, equals the atomic mass.

. SE7.12D Which of the following statements accurately represents the differences inplant and animal cells?
Only plant cells have a cell wall, chloroplasts, and a large vacuole.
Only animal cells have a cell wall, chloroplasts, and a large vacuole.
Only plant cells have a cell membrane, mitochondria, and cytoplasm.
Only animal cells have a cell membrane, mitochondria, and
cytoplasm.
CLEAR ALL

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Features which are found in plant cellsonly are the chloroplast, large vacuole and cell wall.

Plants and animal cells consists of the following parts ; Mitochondria, cell membrane, vacuole, cytoplasm and so on.

The vacuole present in animal cells are much smaller than those found in plant Cells. Hence, vacuole in animal cells are called small vacuole

Plant cells also consists of cell wall, chloroplast and a large vacuole. All these are missing in animal cells.

Therefore, Only plant cells have "acellwall,chloroplastsandalargevacuole."

Learn more : brainly.com/question/18012076?referrer=searchResults

Only plant cells have a cell wall, chloroplasts, and a large vacuole.

I hope this helped :)

A dog may become frightened and cower when it hears loud thunder. This is an example of a reaction to what kind of stimuli?chemicals

light

touch

sound

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A dog may become frightened and cower when it hears loud thunder. This is an example of a reaction to sound stimuli. Therefore, option D is correct.

What do you mean by stimuli ?

Stimuli are changes in the internal or external environment that can be detected. That which influences or causes an increase in physiological activity or response in the entire organism or any of its parts.

Touch and pain are examples of external stimuli, as are vision, smell, taste, sound, and balance. External changes activate these sensory stimuli. Pain and touch: Pain is a stimulus that can elicit a significant response from the body. Pain can also alter an organism's behavior.

A dog may become frightened and cower when it hears loud thunder. This is an example of a reaction to sound stimuli because dogs have excellent hearing so when it hears loud thunder it was a frightened reaction.

Thus, option D is correct.

To learn more about the stimuli, follow the link;

brainly.com/question/29381470

#SPJ6

The answer to your question would be sound because dogs have excellent hearing so when it hears loud thunder it was a frightened reaction. :)

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Which statement about one atom of an element identifies the element?(1) The atom has 1 proton. (2) The atom has 2 neutrons.(3) The sum of the number of protons and neutrons in the atom is 3.(4) The difference between the number of neutrons and protons in the atom is 1.

What do the formulas for table salt, NaCl, and water, H2O indicate about the compounds?