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larissa
Questions (14)
Consider the following expression: 4+(−6)⋅2−(−3)2
4 + ( − 6 ) ⋅ 2 − ( − 3 ) 2 . What is the simplified
1 answer
23 views
Solve for x
𝑥 . 92x+3=(13)x+4 9 2 𝑥 + 3 = ( 1 3 ) 𝑥 + 4 (1 point) Responses x=−2 𝑥 = − 2 x is equal to negative 2
1 answer
18 views
Which expression simplifies to 65–√3
6 5 3 ?(1 point) Responses 440−−√3−25–√3 4 40 3 − 2 5 3 4 cube root of 40
1 answer
35 views
Create a problem where the sum of the two numbers is an irrational number.(2 points)
1 answer
30 views
Show all of your steps for how to simplify 3 5–√⋅2 10−−√
Your final answer should be in simplest radical form (not a
1 answer
19 views
Between which types of elements do ionic bonds occur, and how do electrons act within the bond?(1 point)
Responses metals and
7 answers
39 views
Which element would have the lowest electronegativity? (1 point)
Responses an element with a small number of valence electrons
11 answers
82 views
When solving the problem 7x+2=73x−8
7 𝑥 + 2 = 7 3 𝑥 − 8 , your fiend does the following: 7(x)+2=7(3x)−8 7 ( 𝑥 ) +
1 answer
31 views
What is the distance between the points (-30, -10) and (-30, 19) in the xy-plane?
A. 29 units B. 9 units C. 20 units D. 49 units
2 answers
276 views
Mary has rehearsed her ballet solo for five and a half hours. A week from now, she wants to have rehearsed at least a total of
1 answer
591 views
what is the answer a number n times 9 decreased by 11?
1 answer
481 views
Two bicyclists, starting at the same place, are riding toward the same campground by different routes. One cyclist rides 1040 m
0 answers
1,220 views
solve:
the square root of (x) +2= the square root of (5-x) +3
3 answers
711 views
Solve the equation:
_ ___ �ãx +2=�ã5-x +3
2 answers
499 views
Answers (9)
Which option describes the structure of the electron shells in a neutral carbon atom?(1 point) Responses The inner shell is incomplete with three electrons. The outer shell is incomplete with three electrons. The inner shell is incomplete with three
Why is carbon said to provide a “backbone” in many molecules?(1 point) Responses Carbon atoms can form chains and branches with each other, and other atoms can attach to these. Carbon atoms can form chains and branches with each other, and other atoms
Which kind of bond would occur between sodium (Na, Group IA) and chlorine (Cl, Group VIIA)?(1 point) Responses covalent covalent no bond no bond ionic ionic metallic
Metallic bonds are responsible for many properties of metals, such as conductivity. Why is this possible?(1 point) Responses An attraction between a positive charge and a negative charge is created. An attraction between a positive charge and a negative
Which elements would react most easily with each other? (1 point) Responses an element with a high electronegativity and an element with low reactivity an element with a high electronegativity and an element with low reactivity an element with a high
Which element listed would have the greatest electronegativity? (1 point) Responses boron boron carbon carbon fluorine fluorine lithium
How are reactivity and electronegativity related?(1 point) Responses An element will be more reactive if it has a very high or very low electronegativity. An element will be more reactive if it has a very high or very low electronegativity. An element will
Which elements on the periodic table are the least reactive? (1 point) Responses the group with helium at the top the group with helium at the top the group with carbon at the top the group with carbon at the top the group with fluorine at the top the
i just took exam. the answer is b.
