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Questions (23)
Multiply the polynomial expression (x+2)(x−4) .(2 points)
5 answers
153 views
Multiply the polynomial expression%C2%A0 (x+2)(x−4) .(2 points)
Remember to multiply each term in the first binomial by each
3 answers
103 views
Which of the following shows that polynomials form a closed system under multiplication? Option #1: 3(2x+5)=6x+15 Option #2:
5 answers
185 views
You have now learned the importance and benefits of weight training and cardiovascular activity. Decide which athlete might use
16 answers
502 views
How many credits does it take to be classified as a tenth-grade student?
5 answers
382 views
Which incorrect aspect of Rutherford’s model was fixed by Bohr’s model?(1 point)
3 answers
85 views
Which statement about metals and nonmetals is correct?(1 point)
7 answers
62 views
Use the periodic table to answer the question.
11 answers
35 views
Which structure defines the hydroxyl functional group?(1 point)
options: CH3 NH 2 OH SH
3 answers
64 views
Which of the following is an example of only a physical change?(1 point)
13 answers
53 views
What are the reactants in a chemical formula?(1 point)
19 answers
135 views
Which feature defines a neutral atom?(1 point)
a full outer electron shell the number of electrons equal to the number of protons
5 answers
80 views
Which change is likely to happen to an atom of the element strontium (Sr) during bonding?
15 answers
127 views
Which of the following soccer skills is employed only by the goalkeeper? (1 point)
Punting Shooting Dribbling None of the above
10 answers
141 views
What does al Gore,author of an inconvenient true, demonstrate about the level of atmospheric carbon dioxide levels?
Each year,
15 answers
107 views
What does the Law of Conservation of Mass state?(1 point)
19 answers
288 views
1.Which element would most likely lose electrons to form positive ions when bonding with other elements?
A. argon (Ar) B. gallium
19 answers
192 views
In the decomposition of water, why is twice as much hydrogen as oxygen formed?(1 point)
Hydrogen gas has two atoms, and oxygen
7 answers
149 views
_______ are collections of l large monuments created from huge stone slabs.
options: Monoliths Megaliths Petroglyphs Hieroglyphs
10 answers
145 views
The left side of a chemical reaction is shown. Cu + AgNO3 → Which type of reaction will the reactants undergo? (1 point)
3 answers
222 views
Which of the following refers to data that has been scrambled, making it unreadable to hackers and other potential sources of
3 answers
87 views
Which change will always take place in nuclear fusion?(1 point)
3 answers
19 views
Which change will always take place in nuclear fusion?(1 point)
the total charge will be less than before the fusion took place.
3 answers
46 views
Answers (75)
Moai are examples of _______.
no its not
_______ is a site of one of the largest groupings of megaliths in the world, located in the South Pacific.
not right
In a chemical reaction, substance A transfers electrons to substance B. Which statement is correct?(1 point) Substance B is oxidized and acts as the reducing agent. Substance B is reduced and acts as the oxidizing agent. Substance A is reduced and acts as
Which component is transferred between substances in an oxygen-reduction reaction?(1 point)
In a synthesis reaction, two atoms of sodium (Na) combine with one molecule of chlorine gas (Cl2) to produce sodium chloride (NaCl). How many molecules of sodium chloride are produced?(1 point) four two one three
Which statement correctly describes the classification of chemical reactions into different categories?(1 point) All reactions fit into a category, and some reactions can fit into more than one category. All reactions fit into a category, and a reaction
no because you are going to make my grade low
that is wrong idiot
whats the answer??
here is the information: Element Electronegativity bromine 2.8 oxygen 3.5 nitrogen 3.0 phosphorus 2.1
what is the answer?
Based on the information in the table, which pair of elements would likely form the least polar bonds with each other? (1 point) phosphorus and bromine bromine and nitrogen nitrogen and oxygen oxygen and phosphorus
Based on the information in the table, which pair of elements would likely form the least polar bonds with each other? A. oxygen and phosphorus B. phosphorus and bromine C. nitrogen and oxygen D. bromine and nitrogen
1.Which element would most likely lose electrons to form positive ions when bonding with other elements? A. argon (Ar) B. gallium (Ga) C. iodine (I) D. rubidium (Rb) 2.Which statement about sodium chloride is correct? A. The sodium atom transfers electrons
oh never mind lol thanks
not it isn't correct lier
i keep telling you, that isn't the answer so what is it?
that is not the answer and you are very useless
what is the answer?
If the mass of elements before a chemical reaction is 30 grams, after the chemical reaction, the mass will be __. 28 grams 0 grams 30 grams 32 grams 3. 78 g of potassium (K) react with 71 g of chlorine (Cl) to produce potassium chloride. According to the
2 grams of potassium (K) reacts with 5 grams of Oxygen (O). According to the Law of Conservation of Mass, how many grams of potassium oxide (K2O) will be produced? (1 point) Responses 5 grams
artasticdrawing avatar artasticdrawing 09/08/2022 Chemistry High School answered • expert verified Pls Help ASAP! 2 grams of potassium (K) reacts with 5 grams of Oxygen (O). According to the Law of Conservation of Mass, how many grams of potassium oxide
2H2 + 1O2 →→ 2H2O if you change the 2H2 to 3H2 molecules and balance the equation, which statement is correct? Each oxygen molecule will combine with 2 hydrogen molecules with no leftover molecules. The equation will produce three molecules of water.
Which statement correctly explains why the ashes of burnt paper have less mass than the original paper? A.) The ash is created from new atoms that have less mass than the paper. B.) Some of the atoms in the paper are destroyed when it burns. C.) Some of
One molecule of calcium oxide, CaO, and one molecule of carbon dioxide, CO2, combine in a chemical reaction to form one substance. Given that matter is neither created nor destroyed, which chemical formula is the product of this reaction?(1 point)
substance. Given that matter is neither created nor destroyed, which chemical formula is the product of this reaction? (1 point) Ca2CO3 CaCO2 Ca203 0 CaCO3
When iron rusts and forms iron oxide, the iron oxide has more mass than the iron. Which statement correctly explains this observation? (1 point) (A)Iron oxide has oxygen atoms, and pure iron does not. (B)The oxygen atoms in iron oxide have more mass than
In which sentence below is the underlined word an indirect object? A. Gore published *An Inconvenient Truth* a few years after he ran for president. B. My sister gave *me* a signed copy of the book c. She said she preferred the documentary *film*
According to An Inconvenient Truth, what is the role of infrared radiation in global warming? A. All of the sun’s energy is converted to infrared radiation and then remains in the atmosphere. This warms the atmosphere. B. Over time, infrared radiation
Which type of trap is used to stop a ball at waist level? (1 point) foot trap chest trap thigh trap any of the above
How is play resumed in soccer when the ball goes out of bounds? (1 point) throw-in free throw goal kick instep pass
Which of the following soccer terms shares its name with a popular basketball term? (1 point) punting heading trapping dribbling
Which of the following is not true about a soccer throw-in? (1 point)
what is the answer??
What is the term in soccer for when a player moves the ball into the goal post past the goalie? (1 point)
What is the term for when a player stops the soccer ball with their foot?
Name the term in soccer that is used when a player stops a pass at his/her feet. (1 point)
(1 point) The _________ pass is used when a player wants to make a short, quick, and accurate pass in soccer.
A goal is scored in soccer when_____. (1 point)
what is the answer?
Which change is likely to happen to an atom of the element strontium (Sr) during bonding? (1 point) It will gain electrons, forming a positive ion. It will give up electrons, forming a negative ion. It will give up electrons, forming a positive ion. It
How many valence electrons are in an atom of the element fluorine? (1 point) two five eight seven
what is the answer??
Why do atoms exchange or share electrons during bonding?(1 point)
Which phrase describes valence electrons?(1 point) the electrons in an atom’s outermost energy level the electrons surrounding an atom’s nucleus electrons that are exchanged between atoms electrons that are shared between atoms
Which phrase describes a valence electron?(1 point) an electron in the innermost orbit of an atom an electron that has been removed from an atom any negatively charged particle in an atom an electron in the outer energy level of an atom
From the Periodic table, it can be determined that iron (Fe) has an atomic mass of 56 amu, oxygen (O) has an atomic mass of 16 amu, and hydrogen (H) has a mass of 1 amu. What would the atomic mass of Fe(OH) 3 be?(1 point) 219 amu 73 amu 75 amu 107 amu
Which of the following molecules shows two atoms of hydrogen (H)?(1 point) H2SO4 cap h sub 2 cap s cap o sub 4 2H2O 2 cap h sub 2 cap o HO2 cap h cap o sub 2 2CH4 2 cap c cap h sub 4
