Answers
Answer:
in my opinion its going to be B because the moles of experiment I are more than moles of experiment II
Related Questions
Which set of numbers gives the correct possible values of l for n = 2?
0
0, 1
0, 1, 2
0, 1, 2,
Answers
Answer:
0,1
Explanation:
Diffusion of water across the cell membrane is called ____
a. Diffusion
b. Osmosis
c. Concentration
Answers
Answer:
B Osmosis
Explanation:
As one of the periodic trends studied in this unit, reactivity of metals varies in a
predictable manner. Of the elements listed, which one is the most reactive metal and
why?
A:Rubidium because it has a large atomic radius, a low ionization energy, and a low
electronegativity
B:Barium because it has a small radius, high ionization energy, and high
electronegativity
C:Aluminum because it has a small atomic radius and a small number of protons
D:Lithium because it has a smaller radius than most other metals
Answers
What moon phase will she observe approximately one week later?
O A First quartel
OB Full Moon
OC Waning gibbous
OD New Moon
Answers
Answer:
Why does the Moon have phases?
At the new Moon phase, the Moon is so close to the Sun in the sky that none of the side facing Earth is illuminated (position 1 in illustration). In other words, the Moon is between Earth and Sun. At first quarter, the half-lit Moon is highest in the sky at sunset, then sets about six hours later (3). At full Moon, the Moon is behind Earth in space with respect to the Sun. As the Sun sets, the Moon rises with the side that faces Earth fully exposed to sunlight (5).
At the new Moon phase, the Moon is so close to the Sun in the sky that none of the side facing Earth is illuminated (position 1 in illustration). In other words, the Moon is between Earth and Sun. At first quarter, the half-lit Moon is highest in the sky at sunset, then sets about six hours later (3). At full Moon, the Moon is behind Earth in space with respect to the Sun. As the Sun sets, the Moon rises with the side that faces Earth fully exposed to sunlight (5).
The Moon has phases because it orbits Earth, which causes the portion we see illuminated to change. The Moon takes 27.3 days to orbit Earth, but the lunar phase cycle (from new Moon to new Moon) is 29.5 days. The Moon spends the extra 2.2 days "catching up" because Earth travels about 45 million miles around the Sun during the time the Moon completes one orbit around Earth.
At the new Moon phase, the Moon is so close to the Sun in the sky that none of the side facing Earth is illuminated (position 1 in illustration). In other words, the Moon is between Earth and Sun. At first quarter, the half-lit Moon is highest in the sky at sunset, then sets about six hours later (3). At full Moon, the Moon is behind Earth in space with respect to the Sun. As the Sun sets, the Moon rises with the side that faces Earth fully exposed to sunlight (5).
You can create a mockup of the relationship between Sun, Earth, and Moon using a bright lamp, a basketball, and a baseball. Mark a spot on the basketball, which represents you as an observer on Earth, then play with various alignments of Earth and Moon in the light of your imaginary Sun.
When is the Harvest Moon?
The full Moon that occurs closest to the autumnal equinox is commonly referred to as the "Harvest Moon," since its bright presence in the night sky allows farmers to work longer into the fall night, reaping the rewards of their spring and summer labors. Because the equinox always falls in late September, it is generally a full Moon in September which is given this name, although in some years the full Moon of early October earns the "harvest" designation.
Why do we always see the same side of the Moon from Earth?
The Moon always shows us the same face because Earth's gravity has slowed down the Moon's rotational speed. The Moon takes as much time to rotate once on its axis as it takes to complete one orbit of Earth. (Both are about 27.3 Earth days.) In other words, the Moon rotates enough each day to compensate for the angle it sweeps out in its orbit around Earth.
Gravitational forces between Earth and the Moon drain the pair of their rotational energy. We see the effect of the Moon in the ocean tides. Likewise, Earth's gravity creates a detectable bulge -- a 60-foot land tide -- on the Moon. Eons from now, the same sides of Earth and Moon may forever face each other, as if dancing hand in hand, though the Sun may balloon into a red giant, destroying Earth and the Moon, before this happens.
When does the young Moon first become visible in the evening sky?
There is no real formula for determining the visibility of the young Moon. It depends on several factors: the angle of the ecliptic (the Moon's path across the sky) with respect to the horizon, the clarity of the sky (how much dust and pollution gunks it up), and even the keenness of the observer's eyesight.
The young Moon becomes visible to the unaided eye much earlier at times when the ecliptic is perpendicular to the horizon, and the Moon pops straight up into the sky. In these cases, it may be possible to see the Moon as little as 24 hours after it was new, although every hour beyond that greatly increases the chances of spotting it. When the ecliptic is at a low angle to the horizon, and the Moon moves almost parallel to the horizon as it rises, the Moon probably doesn't become visible until at least 36 hours past new.
The record for the earliest claimed sighting of the young crescent Moon is around 19 hours, although most experts are suspicious of any claims of times less than about 24 hours.
Explanation:
What is the maxlmum number of electrons that can be present in each principal energy level of hydrogen?
Answers
Answer:
Two electrons
Explanation:
Durning a chemical reaction, the law of_____ ______ states that the total mass of the products must be equal to the total mass of the recent
Answers
Answer: conservation of mass
Explanation:
1. If you increase the force on an object, it’s acceleration increases.
True or false
2. If you increase the mass of an object, it’s acceleration decrease.
True or false
Vote you brainiest:)
Answers
Answer:
Answer is given below............
1) true
2) false
A balloon with a mass of 5 grams is blown up and popped. If all the pieces are weighed what would be their total mass?
2.5 grams
5 grams
10 grams
7.5 gram
Answers
Answer:
5 grams
Explanation:
How does the number of valence electrons in sodium (Na) compare to the number of valence electrons in calcium (Ca)?
Answers
calcium has one more valence electron than sodium.
calcium has 2 valence electrons, sodium has 1.
Answer:
Na has one fewer valence electron than Ca. I did it
Explanation:
The functions carried out by all types of cells are functions that allow the
cell to?
A: create new life
B:adapt to environment
C: sustain life
Answers
Answer:
They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body's hereditary material and can make copies of themselves. Cells have many parts, each with a different function
Explanation:Its A
How do scientists identify the bond type in a compound using the chemical formula
Answers
Answer:
How do scientists identify the bond type of a chemical formula? ... By definition, an ionic bond is between a metal and a nonmetal, and a covalent bond is between 2 nonmetals. So you usually just look at the periodic table and determine whether your compound is made of a metal/nonmetal or is just 2 nonmetals.
Explanation:
Answer:
There is a couple different ways to determine if a bond is ionic or covalent. By definition, an ionic bond is between a metal and a nonmetal, and a covalent bond is between 2 nonmetals. So you usually just look at the periodic table and determine whether your compound is made of a metal/nonmetal or is just 2 nonmetals.
☆ I HOPE ITS HELP YOU ☆A scientist suggested that the movement of compound
X across a cellular membrane could be sped up by
the addition of enzyme Y. According to Figure 1, an
enzyme speeds the reaction because:
F. the activation energy is lower with the enzyme
than without the enzyme.
G. the activation energy is higher with the enzyme
than without the enzyme.
H. the activation energy is equal with and without
the enzyme.
J. the free energy change is higher with an enzyme
than without enzymes.
Answers
uhhhh sorry i have no idea try a different site
Explanation:
Which statement best describes how sediment forms?
A. Loose material is cemented by pressure.
B. Chemical changes cause sediment to compact together.
C. Weathering breaks down rock and other material.
D. Molten rock cools above Earth’s surface.
Answers
Answer:
C. Weathering breaks down rock and other material.
Explanation:
Answer:
Weathering breaks down rock and other material.
Explanation:
Have a nice day!!
QUOTE: " Out of the mountain of despair, a stone of HOPE. "- By: Martian Luther King JR.
why do you divide 1 by 10???
Answers
Answer: 0.1
Explanation: because if you divide 1/10 gives you 0.1
will mark brainliest if its right
Answers
Answer:
Rutherford's!
expiation step by step
Help you could take your time and give a explanation that you didn’t guess
Answers
All phase change require energy to be taken away or added.
True
False
Answers
Answer:
true
Explanation:
What occurs in a chemical reaction?
A: Products are formed from reactants by the breaking and forming of new bonds.
B: Reactants are formed without chemical bonds being broken.
C: Products are formed without chemical bonds being broken.
D: Reactants are formed from products by the breaking and forming of bonds.
Answers
Answer:
A: Products are formed from reactants by the breaking and forming of new bonds.
Answer:c
Explanation:
Which two elements non the periodic table are in the same period
Answers
If I added 10 kJ of heat to a 100 g cube of copper and 10 kJ of heat to a 100 g cube of aluminum, which cube would experience a greater change in temperature. Explain your answer in terms of specific heat.
Answers
Answer:
The cube of copper
Explanation:
Cube of copper has a lower specific heat than the cube of aluminum. This pretty much shows that the lower specific heat, the higher change in temp.
(yeah i just found out how to do it like a minute ago cos its on my hw)
A cube of copper would experience a greater change in temperature in comparison with a cube of aluminum.
Given the following data:
Quantity of heat = 10 kJ = 10,000 JoulesMass of copper cube = 100 gMass of aluminum cube = 100 gSpecific heat capacity of aluminum = 0.89 J/g°CSpecific heat capacity of copper = 0.39 J/g°C.To determine which cube would experience a greater change in temperature:
Mathematically, quantity of heat is given by the formula;
[tex]Q = mc\theta[/tex]
Where:
Q represents the quantity of heat.m represents the mass of an object.c represents the specific heat capacity.∅ represents the change in temperature.Making change in temperature (∅) the subject of formula, we have:
[tex]\Theta = \frac{Q}{mc}[/tex]
For copper cube:
[tex]\theta = \frac{10000}{100(0.39)}\\\\\theta = \frac{10000}{39}[/tex]
Change in temperature ([tex]\theta[/tex]) = 256.41°C
For aluminum cube:
[tex]\theta = \frac{10000}{100(0.89)}\\\\\theta = \frac{10000}{89}[/tex]
Change in temperature ([tex]\theta[/tex]) = 112.36°C
Based on the above calculations, we can deduce and conclude that a cube of copper would experience a greater change in temperature in comparison with a cube of aluminum.
Read more: https://brainly.com/question/188778
connexus sience 6 a lesson 10 unit test
Answers
Answer:
Whats the qeustion
Explanation:
think pls
also what is the arrow a pointing to?
Answers
What is the speed of a rocket that traveled 1400 m in 11 seconds?
Answers
Answer:
The answer is 127.27 m/sExplanation:
The speed of the rocket can be found by using the formula
[tex]v = \frac{d}{t} \\ [/tex]
where
d is the distance
t is the time
From the question we have
[tex]v = \frac{1400}{11} \\ = 127.272727...[/tex]
We have the final answer as
127.27 m/sHope this helps you
What happens when the lava “meets” the ocean? *
Answers
Answer:
Steam
Explanation:
When lava meets the sea it cools quickly while boiling the ocean into steam. The billowing steams clouds can be deadly as they contain small glass shards of fragmented lava and acid mist from sea water.
How many dots should be placed around argon in a dot diagram? A) 2 C) 6 D) 8
Answers
The number of dots that should be placed around argon in a dot diagram is : ( D ) 8
Argon is a noble gas ( inert gas ) just like helium and neon and they have their outer most shell completely filled with its electrons ( 8 valence electrons ), which makes them non-reactive with any other element or compound.
Every valence electron in the Lewis structure of an atom is represented with a dot therefore the 8 valence electrons in Argon will be represented with 8 dots.
Hence we can conclude that the number of dots that should be placed around Argon in a dot diagram is 8.
Learn more : https://brainly.com/question/21329765
There should be 8 dots placed around argon in a dot diagram. The correct answer is option D.
A dot diagram is a way of representing the valence electrons of an atom using dots around the atomic symbol. Each dot represents one valence electron.
Argon is an element in the noble gas family with atomic number 18.The electron configuration of argon is[tex]\rm 1s^2\ 2s^2\ 2p^6\ 3s^2\ 3p^6[/tex], which means that it has 8 valence electrons.
In a dot diagram, argon should have 8 dots around it, representing the 8 electrons in its outermost shell.
Therefore, the correct answer is D) 8. Argon has a full valence shell of electrons, so in a dot diagram, it should have 8 dots around the atomic symbol to represent its 8 valence electrons.
Learn more about dot diagram here:
https://brainly.com/question/29350539
#SPJ6
How does atomic radius change from left to right across a period in the periodic table? A. it tends to decrease B. it tends to increase C. it first increases, then decreases D. it first decreases, then increases
Answers
Answer:
it decreases from left to right
Answer: It’s A. It tends to decrease.
Explanation:
Which of the picture demostrate a state of matter without a fixed shape or dices volumen?
•J
•K
•L
•M
Answers
Answer:
we need picture
Explanation:
Which best explains why conservation of mass should be studied in a closed
system?
A. to prevent contamination of the products
o
B. to prevent the loss of any reactants
c. to prevent the release of any gases produced
D. to prevent the absorption of heat from the outside
Answers
Answer: C
Explanation:
The option that best explains why conservation of mass should be studied in a closed system is to prevent the release of any gases produced.
The law of conservation of mass states that mass can neither be created nor destroyed in a reaction, but can be converted from one form to another during the course of the reaction.
A closed system is one that cannot exchange matter with its surrounding while an open system is free to exchange both matter and energy with its surrounding.
When a system is opened, gaseous reactants of products may be lost to the surroundings and the mass will not be conserved as a result.
However, in a closed system, gaseous reactants or products remain within the system and the mass of the system before and after the reaction remains constant.
More on the law of conservation of mass can be found here: https://brainly.com/question/13383562
What is the acceleration that this box will move? (Don't forget your units)
Answers
Answer:
160 I think or 200
Explanation:
the lines are pulling on the same side so you add those
The form of a frog immediately after hatching: _____
A.Fish
B.Pupa
C.Tadpole
D.Larva