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Questions (162,839)
copper compounds such as copper (II) sulfate are toxic. before disposal, these compounds must be treated to reduce their
6 answers
asked by
Josh
6,916 views
How many liters of CO2 form at STP if 5.0g of CaCO3 are treated with excess hydrochloric acid? show all your work
5 answers
asked by
nichole
4,179 views
The reaction of sodium hydrogen carbonate (baking soda), NaHCO3 and vinegar is a safe and effective method of opening a clogged
4 answers
asked by
Mike
1,391 views
A sample is to be analyzed for its chloride content by precipitating and weighing silver chloride. What weight (g) of sample
4 answers
asked by
Jinjin
1,302 views
Lesson 23: Biodiversity Unit Test
I NEED ANSWERS MY GRADE DEPENDS ON IT
5 answers
asked by
cat
1,165 views
Sulfuric acid is diluted in water to make new mixtures. In one container, 72 ml of a 14% acid solution and, in another
4 answers
asked by
Alex
826 views
Select the correct answer from the list.(1 point) To form a nebula, Select Answer pulls matter together or causes Select Answer
15 answers
asked anonymously
212 views
Which statement best describes the movement of galaxies in the universe?(1 point)
Galaxies are moving toward each other, with
3 answers
asked anonymously
76 views
Which statement is the most accurate definition of mutation?(1 point) Responses A mutation is a change in DNA that only causes
1 answer
asked by
boots with the fur
84 views
Wave Characteristics Quick Check
1 of 5 1 of 5 Items Question Which type of wave needs a medium to travel?(1 point) Responses
1 answer
asked anonymously
67 views
In the early 1900s, fire ants came to the mainland United States aboard ships that had docked in their native South America.
1 answer
asked anonymously
56 views
In one or two sentences, make and justify a claim about two aspects of the picture that illustrate behaviors of light.
1 answer
asked by
aaagtuygy
56 views
Which best describes the relationship between the greenhouse gas effect and climate change. (3 points) Responses The greenhouse
1 answer
asked anonymously
43 views
Which of the following describes the relationship between population growth and the underground water supply?(1 point)
Responses
1 answer
asked anonymously
38 views
Which adaptation allowed the Tibetans to live at high altitudes?(1 point)
Responses greater ability to digest starch greater
1 answer
asked by
Strawberry Cow
42 views
Click on "Back to the Water Bodies" and scroll down to Lake Erie then click "Select". Click "reset" to choose new parameters.
How
1 answer
asked anonymously
60 views
Which type of cell has a life span of four days?
brain colon skin heart
20 answers
asked by
i donno
14,485 views
Which type of information can scientists collect using a seismograph?(1 point)
1 temperatures of molten rock inside Earth 2
38 answers
asked by
HELPš¤Æ
8,923 views
What is the name of the process by which plants take in sunlight, carbon dioxide, and water, allowing them to make sugar and
34 answers
asked by
BB
10,933 views
The air temperature is 70 degrees, and the relative humidity is 90%. Which conclusion can be made?
7 answers
asked by
Your Mom
3,099 views
Drag the word to the description it matches.
What is the difference between climate and weather? day-to-day conditions, long-term
14 answers
asked by
Oof
4,895 views
The durian is an Asian fruit that is known for its incredible stench. Food writer Richard Sterling describes its odor as
7 answers
asked by
Anonymous
2,112 views
The breathing process is controlled by (Select all that apply)
A. The diaphragm B. The pharynx C. Blood vessels D. rib muscles
15 answers
asked by
Karina
7,156 views
A student adds ice to several samples of water. The results are shown in the table. Which conclusion can be drawn from the
10 answers
asked by
Sukuna
4,610 views
Walking and Swimming Whales Quick Check
1 of 4 1 of 4 Items Question Fossils are used to study(1 point) Responses organisms that
5 answers
asked by
+Dianna+
763 views
A mineral is a solid with a definite chemical composition. What does it consist of?(1 point)
Responses several elements or
6 answers
asked by
Kim
201 views
In which situation will primary succession most likely occur?
6 answers
asked by
one
227 views
Which information would a scientist be least likely to receive from a weather satellite?(1 point)
49 answers
asked by
jarell
12,125 views
A student tracks the daily weather. The studentās observations are logged in the table. Which factor in the atmosphere best
66 answers
asked by
Anonymous
14,334 views
What is amylase? (1 point)
A. a nutrient absorbed in the small intestine B. An enzyme that breaks down food C. Acid in the
17 answers
asked by
Choklat daddy
3,197 views
The gravitational force exerted by the sun keeps planets in orbit. What would happen to the force that keeps Earth in orbit if
4 answers
asked by
Okay so-
1,859 views
Which of the following describes fertilization? (1 point)
when an animal is attracted to a flower when an animal is attracted to
11 answers
asked by
Kendall
3,091 views
In 3-5 sentences, analyze why Aristotle's and Ptolemy's models were accepted for more than a thousand years in spite of being
5 answers
asked by
um
979 views
Which is the best example of a thermal conductor?(1 point)
Responses plastic ice-cube tray copper plating on bottom of a skillet
5 answers
asked by
HAELP
637 views
1. Scientists seek to acquire knowledge and understanding of the real world through the formulation, testing, and evaluation of
4 answers
asked by
Idk name here
1,559 views
The heat capacity of a material shows the amount of heat that can be taken in before the Material increases in temperature.
7 answers
asked by
Love
764 views
Samuel builds four electromagnets and tests them by picking up paperclips. Here are his partial results.
Coils Paperclips 8 2 16
4 answers
asked by
the real BARNY THE DINO :)
279 views
What mass of aluminum is deposited electrolytically in 30 minutes by a current of 40A?
13 answers
asked by
Masre
4,038 views
Some say that the hot air balloons with which the Montgolfier brothers performed their first flight had a volume of 1700 cubic
5 answers
asked by
Nick
4,830 views
explain,using the kinetic theory what happens to the particles in oxygen as it is cooled down.
7 answers
asked by
fina
3,157 views
Calculate the total number of atoms in 0.00102 mol CH3(CH2)4CH2OH
The answer in the back of my book says 1.29 x 10^22 but i do
5 answers
asked by
Bob
4,942 views
You dip your finger into a pan of water twice each second, producing waves with crests that are separated by 0.15 m. Determine
5 answers
asked by
Dominique
9,412 views
If an element has an atomic number of 10, how many electrons are in its outermost shell?
a). 5 b). 10 c). 8 d). 2 e). The answer
6 answers
asked by
Mary
2,641 views
In which case would a widely accepted scientific idea MOST likely be revised?
A) when an error is found in a previous calculation
6 answers
asked by
Rafa
4,133 views
Reaction Rates Portfolio Chemistry B Reaction Rates there are no instructions on how to do this, the teacher won't explain it
7 answers
asked by
Anonymous
1,541 views
Gas is confined in a tank at a pressure of 10.0 atm and a temperature of 15o
C. If half of the gas is withdrawn and the
5 answers
asked by
Angie
2,049 views
Two reasons why displacement method is not suitable when determining the volume of a charcoal?
5 answers
asked by
Michael
2,836 views
calculate the mass, in grams, of NaCl present in each of the following solutions.
6.25 g of 11.5% NaCl solution 452 g of 12.3%
4 answers
asked by
pat
3,474 views
Is carat earrings homogeneous mixture or heterogeneous mixture?
4 answers
asked by
Lwandile
914 views
Which of the following best describes an electric circuit that powers a load?(1 point)
Responses Electric current flows from an
1 answer
asked by
the real BARNY THE DINO :)
190 views
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