Article 1 informs readers about the benefits of hand washing, and Article 2 persuades readers to wash their hands more. Given this information, which method of writing is different between the two articles?(1 point)
Responses
text organization
text organization
topic
topic
purpose for writing
purpose for writing
tone
13 answers
tone
What is text organization?(1 point)
Responses
the reason an author is writing
the reason an author is writing
the attitude of a writer toward a subject or an audience
the attitude of a writer toward a subject or an audience
the method an author uses to present information in writing
the method an author uses to present information in writing
the style in which an author is writing
Responses
the reason an author is writing
the reason an author is writing
the attitude of a writer toward a subject or an audience
the attitude of a writer toward a subject or an audience
the method an author uses to present information in writing
the method an author uses to present information in writing
the style in which an author is writing
the method an author uses to present information in writing
How does text organization help an author achieve the desired purpose? (1 point)
Responses
The text structure allows an author to avoid conveying a certain tone in the writing.
The text structure allows an author to avoid conveying a certain tone in the writing.
The text structure allows an author to have a specific point of view.
The text structure allows an author to have a specific point of view.
The text structure allows an author to present information in a way that supports an argument.
The text structure allows an author to present information in a way that supports an argument.
The text structure allows an author to explain information in a formal way.
Responses
The text structure allows an author to avoid conveying a certain tone in the writing.
The text structure allows an author to avoid conveying a certain tone in the writing.
The text structure allows an author to have a specific point of view.
The text structure allows an author to have a specific point of view.
The text structure allows an author to present information in a way that supports an argument.
The text structure allows an author to present information in a way that supports an argument.
The text structure allows an author to explain information in a formal way.
The text structure allows an author to present information in a way that supports an argument.
Suppose 10 atoms of carbon (C) react with 20 atoms of oxygen (O) to form 10 molecules of carbon dioxide (CO2
). According to the law of conservation of matter, how many atoms are present in this reaction?(1 point)
Responses
10
10
20
20
30
30
15
). According to the law of conservation of matter, how many atoms are present in this reaction?(1 point)
Responses
10
10
20
20
30
30
15
30
Which procedure could be used to demonstrate that matter is conserved during a chemical change or reaction?(1 point)
Responses
Find the mass of a stick of butter. Heat the butter until it melts. Find the mass of the melted butter.
Find the mass of a stick of butter. Heat the butter until it melts. Find the mass of the melted butter.
Find the mass of an acid and a base. Combine them to produce water and a salt. Find the mass of the water and salt.
Find the mass of an acid and a base. Combine them to produce water and a salt. Find the mass of the water and salt.
Find the mass of a log. Burn the log until it turns to ash and smoke. Find the mass of the ash.
Find the mass of a log. Burn the log until it turns to ash and smoke. Find the mass of the ash.
Find the mass of a piece of paper. Tear the paper into smaller pieces. Find the mass of the pieces.
Responses
Find the mass of a stick of butter. Heat the butter until it melts. Find the mass of the melted butter.
Find the mass of a stick of butter. Heat the butter until it melts. Find the mass of the melted butter.
Find the mass of an acid and a base. Combine them to produce water and a salt. Find the mass of the water and salt.
Find the mass of an acid and a base. Combine them to produce water and a salt. Find the mass of the water and salt.
Find the mass of a log. Burn the log until it turns to ash and smoke. Find the mass of the ash.
Find the mass of a log. Burn the log until it turns to ash and smoke. Find the mass of the ash.
Find the mass of a piece of paper. Tear the paper into smaller pieces. Find the mass of the pieces.
Find the mass of a stick of butter. Heat the butter until it melts. Find the mass of the melted butter.
What is always true according to the Law of Conservation of Matter?(1 point)
Responses
Atoms can be rearranged during a chemical reaction but cannot be added or taken away.
Atoms can be rearranged during a chemical reaction but cannot be added or taken away.
New molecules cannot be formed from the reactants during a chemical reaction.
New molecules cannot be formed from the reactants during a chemical reaction.
Atoms created during a chemical reaction must have the same mass as the atoms in the reactants.
Atoms created during a chemical reaction must have the same mass as the atoms in the reactants.
The total number of molecules before and after a chemical reaction stays the same.
Responses
Atoms can be rearranged during a chemical reaction but cannot be added or taken away.
Atoms can be rearranged during a chemical reaction but cannot be added or taken away.
New molecules cannot be formed from the reactants during a chemical reaction.
New molecules cannot be formed from the reactants during a chemical reaction.
Atoms created during a chemical reaction must have the same mass as the atoms in the reactants.
Atoms created during a chemical reaction must have the same mass as the atoms in the reactants.
The total number of molecules before and after a chemical reaction stays the same.
Atoms can be rearranged during a chemical reaction but cannot be added or taken away.
A student combines two liquids in a beaker. She observes that the mass of the combined liquid is less than the mass of the two separate liquids. The student claims that this observation shows that matter is not conserved in chemical reactions. Which statement explains why the student’s claim is incorrect?(1 point)
Responses
The reaction produced a gas that escaped the beaker.
The reaction produced a gas that escaped the beaker.
The reaction did not change the physical properties of the liquids.
The reaction did not change the physical properties of the liquids.
The product contained fewer atoms than the reactants.
The product contained fewer atoms than the reactants.
The combined liquid was warmer than the two separate liquids.
Responses
The reaction produced a gas that escaped the beaker.
The reaction produced a gas that escaped the beaker.
The reaction did not change the physical properties of the liquids.
The reaction did not change the physical properties of the liquids.
The product contained fewer atoms than the reactants.
The product contained fewer atoms than the reactants.
The combined liquid was warmer than the two separate liquids.
The reaction produced a gas that escaped the beaker.
7 answers