The third choice is the answer.
This is because chemical change occurs when the (for a lack of better wording) interior of the object is changed in the second one the bread is being broken down chemically by the stomach acid this is because the acid is breaking down the formation of the bread dissolving it and chainring it into something else.
In the 4th one the change that is seen is chemical because the formation of the roof is change the physical appearance may be the same (ie. The size & shape) but their are other changes in the color, texture and maybe taste ( don’t taste a rusting roof lol) these are ways in which you can figure out if a change is chemical or physical.
Physical change occurs when the size and/or shape of an object is changed.
Chemical change occurs when the texture, taste and/or color of the object is changed, but-sometimes chemical change cannot be seen.
Hope this helped :)
Inherited Traits are passed down and are not influenced by organism’s surroundings
Answer:
This condition states that Xander's body temperature is normal. The human feels a little warm. It is due to the various metabolic activities that takes place inside human body.
Not everyone has the same body temperature. The normal body temperature is 38°C. But this can be a bit higher in case of children.
The temperature of the human does not stays same all day. It varies according to the work you do and the time of the day.
Explanation:
The terms given are match of the followings such as acid is matched with option C, base is match of option D, pH is match of option A and litmus paper is match of option B.
<h3>Briefing :</h3>
Acid is a compound that increases hydroxide ions (OH−) when it is dissolved in a solution.
Base is a compound that increases hydrogen ions (H+) when it is dissolved in a solution.
pH is a value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water.
Litmus paper is used to measure the pH of substances by determining their hydrogen ion concentration.
To know more about hydroxide ions :
brainly.com/question/14619642
#SPJ9
I understand the question you are looking for :
Match the term with its description.
Acid
Base
pH
Litmus paper
Definition
A) A value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water
B) Used to measure the pH of substances by determining their hydrogen ion concentration
C) A compound that increases hydroxide ions (OH−) when it is dissolved in a solution
D) A compound that increases hydrogen ions (H+) when it is dissolved in a solution
Answer:
<h3>Things NOT to Do in a Research Lab</h3>
Wearing open-toed shoes.
Keeping long hair down.
Eating or drinking.
Erasing data from your notebook.
Showing up late.
Forgetting to label samples or materials.
Incorrectly disposing of your materials.
Wearing shorts.
