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Science
Page 9
Questions (161,147)
Calculate the current that must be passed into a solution of aluminium salt for 30mins in order to deposit 1.5g of aluminium
6 answers
asked by
Janet
2,395 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
4,128 views
An orange contains 445 kJ of energy. What mass of water could this same amount of energy raise from 25.0 degrees C to the
5 answers
asked by
Anonymous
3,312 views
Given the following acid dissociation constants, which acid has the strongest conjugate base?
a. HCN Ka = 6.2 x 10-10 b. HOCl Ka
5 answers
asked by
Christine
2,181 views
A protein solution (0.3ml) is diluted with 0.9ml water. 0.5ml is taken and reacted with 4.5ml of reagent and the resulting
5 answers
asked by
Anonymous
1,674 views
How can you balance Cu+HNo3=Cu+(No3)2+No+H2o by using algebric or a b c d method please show me with full workout
5 answers
asked by
Eldana
2,493 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
1,295 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C. If half of the gas is withdrawn and the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
2,043 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
3,472 views
How is an echo formed?
3 answers
asked by
Need to know
242 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 :)
183 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
64 views
Which circuit will have the greatest electric current?
(1 point) Responses circuit 3 circuit 3 circuit 1 circuit 1 circuit 2
1 answer
asked anonymously
77 views
In an ecosystem where most flowers are long and bell-shaped, there are two varieties of hummingbird: birds with short beaks and
1 answer
asked anonymously
48 views
In an ecosystem where most flowers are long and bell-shaped, there are two varieties of hummingbird: birds with short beaks and
1 answer
asked by
SQU1D_K1DZ
51 views
Which statement about natural selection is true?(1 point) Responses Natural selection produces animals that are faster and
1 answer
asked anonymously
65 views
A team of students is building an electric circuit with a light bulb, battery, and switch. Which is the best description of the
1 answer
asked anonymously
67 views
How does adding a resistor to an electric circuit affect the current?(1 point)
Responses The resistor increases the current by
1 answer
asked anonymously
57 views
Which of the following is a way that populations of species are limited?(1 point)
Responses Populations are limited by how much
1 answer
asked anonymously
61 views
Have you ever noticed that adults like the taste of some bitter foods that adolescents just cannot tolerate the taste of? Things
1 answer
asked anonymously
60 views
Compare and contrast the advantages and disadvantages of selective breeding versus genetic modification. Why might a person
1 answer
asked anonymously
51 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
28 views
2 cells, each of Emf 2v and internal resistance 0.5ohms are connected in series .they are made to supply current to a
1 answer
asked by
Comrade
156 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
HELP🤯
8,912 views
the volume of a sample of gas is 650.ml at STP. what volumes will the sample occupy at 0.0degrees celsius and 950.torr???
is it
5 answers
asked by
Andy
1,910 views
Which statement describes the units of humidity and relate of humidity?
Community can be measured using g/m3, while relative
48 answers
asked by
Diovy
12,025 views
What causes the difference in the amount of sun's heat energy received by the North pole and the equator?(1 point)
the rotation
22 answers
asked by
that kid
5,252 views
For students write their ideas about the relationship between wavelength and frequency, which student is correct
4 answers
asked anonymously
747 views
How did the Industrial Revolution contribute to global climate change?
A. led to the development of non renewable sources of
9 answers
asked by
Doggy
2,040 views
What is the convection pattern between 30'S and 30°N latitude? (1 point)
O Cooler air rises and moves toward the equator, then
5 answers
asked by
gifted
1,721 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
2,099 views
We did not use the volume of the water added initially to the Erlenmeyer in our calculations. Why?
5 answers
asked by
Kim
1,961 views
A spiral galaxy can be described as what type of shape
4 answers
asked by
Zeno
466 views
Why the petrol in open container dissapeared in terms of kinetic molecular theory of matter
Use the drawings to answer
2 answers
asked by
Montshisi
132 views
A continental polar air mass moves into an area. Based on the characteristics of this type of air mass, which changes are most
46 answers
asked by
Chelsea
13,222 views
A piece of wood float on water and sinks in a methylated spirits .if the density of the wood is 0.8g/cm,explain why it would
12 answers
asked by
Raymond
4,651 views
Calculate the number of grams of dextrose in 250mL of D5W.
I know that the answer is 12.5g, but I do not understand the work.
5 answers
asked by
Elie
9,718 views
explain the importance of convection currents to pond life
5 answers
asked by
lacey
2,275 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
968 views
When measuring specific heat, why should your final temperature be the maximum temperature reached calorimeter?
4 answers
asked by
miyabi
2,788 views
If a gas in a closed container is pressurized from 12 atm to 25 atm and tis original temperature was 32 degrees C, what would
4 answers
asked by
Anonymous
1,335 views
When you are a baby, your bones begin as what type of tissue?
a. cartilage (MY ANSWER) b. cells c. ligaments d. muscle
15 answers
asked by
LOVE
3,452 views
Read the scenario.
Scientists have created an exact scale replica of a rover currently found on Mars and a miniature 3D landscape
5 answers
asked by
Brett
1,898 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
1,544 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
759 views
mosquito larvae can tolerate extremely low dissolved oxygen concentrations, yet cannot survive at temperatures above 25 degrees
4 answers
asked by
cara
1,244 views
Many power plants produce energy by burning carbon-based fuels, which also produces CO2. CO2 is a greenhouse gas, so
24 answers
asked by
Harold
18,585 views
Which statement describes a chemical reaction at equilibrium?
A. The forward reaction happens slightly faster than the reverse
13 answers
asked by
emma
9,733 views
A gas occupies 210 mL at -73°C. To have the same gas occupy 360 mL:
Should the temperature be increased or decreased? What is
5 answers
asked by
ginger
4,040 views
From XNH3+YO2=ZNO+QH2O. find the value of Z?
10 answers
asked by
Chelly
3,400 views
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