Questions and answers by

valentine

Questions (124)

Use the paragraph to answer the question.The scuba instructor said that the occasional nurse shark might swim near the reef, but
1. 19 answers
2. 223 views
Which of the following could provide definitive evidence of a chemical reaction? Choose two correct answers.(1 point)Responses A
1. 15 answers
2. 168 views
Consider the reaction represented by the space-fill models shown. Drag the correct label to each box.Blank 1 represents the
1. 3 answers
2. 164 views
Which statement describes a benefit of summarizing a text?(1 point)Responses Summarizing helps you learn more about the topic of
1. 7 answers
2. 352 views
Which is most likely to occur during a chemical reaction?(1 point)Responses Atoms of the original substance are lost. Atoms of
1. 17 answers
2. 329 views
Chemical Reactions Quick Check1 of 51 of 5 Items Question Use the chemical reaction to answer the question.
1. 6 answers
2. 532 views
Opposites Make Zero Quick Check5 of 55 of 5 Items Question Which situation describes opposite quantities that when combined
1. 2 answers
2. 282 views
Which expression correctly shows the sum of opposite numbers?(1 point)Responses (−25)+25=50 left parenthesis negative 25 right
1. 5 answers
2. 262 views
Which expression shows x and its opposite are 0?(1 point)Responses x+(−1x)=0 x plus left parenthesis negative Start Fraction 1
1. 1 answer
2. 241 views
How does opportunity cost affect people's wants and needs?(1 point) Responses It changes the supply and demand of goods. It
1. 9 answers
2. 226 views
why is it a phisical change to freeze waterheat is released during the process the new and original substances are different a
1. 7 answers
2. 92 views
Which observation most likely indicates that only a chemical change has taken place?(1 point)Responses States of matter changes.
1. 1 answer
2. 89 views
1. Which observation most likely indicates that only a chemical change has taken place?(1 point)Responses States of matter
1. 7 answers
2. 461 views
The temperature on Monday is −4°C. On Tuesday, it is 13° colder. What is the temperature on Tuesday?A - 9°C B - 17°C C -
1. 5 answers
2. 194 views
Which context describes a difference of rational numbers?A - finding the average of daily high temperatures B - determining the
1. 3 answers
2. 175 views
Which of these parts of an informational text supports a central idea?A - evidence B - transitions C - citation of sources D -
1. 5 answers
2. 198 views
Which of the following describes members of an extended family?A - mother, father, sisters, and brothers B - aunts, uncles,
1. 16 answers
2. 440 views
Which term refers to the general subject of a text?A - topic B - outline C - supporting detail D - central idea
1. 9 answers
2. 220 views
_______ are renewable resources because they can be replaced in a short time.A - fossil fuels B - metal ores C - minerals D -
1. 5 answers
2. 128 views
Rapid population growth can result in large increases in the infant mortality rate if there is -a shortage of clean food and
1. 5 answers
2. 163 views
Rapid population growth can result in large increases in the infant mortality rate if there is ___________
1. 1 answer
2. 127 views
A sports medicine major wanted to conduct an experiment to determine if there is a correlation between the members of the soccer
1. 9 answers
2. 9,586 views
CaO(s) reacts with SO2(g) according to the following equations: CaO9(s)+So2(g)--> CaSO3(g).A 8.85g mixture containing CaO(s) is
1. 1 answer
2. 1,255 views
the solution is (2/3,-1/2)(-3,-8) and he formula is f(x)=mx+b given the slope and one point
1. 1 answer
2. 333 views