Answer:
its c
Explanation:
because i have the most wrinkly brain
If you find yourself rushing to complete many different tasks at once, it may be useful to clarify the deadlines for each of the tasks with your boss.
What do you do when you have many tasks at once?It is common in an office setting to be assigned many tasks to be completed within a short time frame. However, all these tasks must be prioritized in order.
Hence, If you find yourself rushing to complete many different tasks at once, it may be useful to clarify the deadlines for each of the tasks with your boss.
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_______ dm^3 = 4.0 L
Answer:
[tex]4dm^{3}[/tex]
Explanation:
1dm^3 is equal to 1L.
What do molecules put together form?
In other terms what do you call a molecule that is put together with another molecule to form a what?
Which have a mass of 0 amu?
A. Protons
B. Neutrons
C. Electrons
D. Protons and neutrons
E. Protons and electrons
F. Neutrons and electrons
I give Brainliest!
Answer:
c
Explanation:
Answer:
C. electrons. They also have a charge of -1
for an atom to be considered electrically neutral it must contain the same number of
Remember! All ___________________________ are __________________________
but not all Atoms are elements.
Answer:
all element are atom but all at all atom are element
Explanation:
because all atoms of an element are same whereas atom of different element are different
WILL GIVE BRAINLIEST AND 20 POINTS How many grams are in 2.36 L of neon gas
Answer:
2.088464 grams.
Explanation:
The density of neon is 0.9002 g/L. Multiplying this value by the number of liters gives how many grams of neon it contains.
0.9002(2.32) = 2.088464
How does weathering, erosion and deposition shape the Earth and contribute to the rock cycle
Answer:
it think like it kicks all the stuff away from the ground stuff, thats the best i can do sorry., im not a science person.
Explanation:
which one of these is NOT a unit for a reaction rate. 1) g/mL 2) M/min
Study the image. Warm and cold air fronts with points labeled 1 through 4. 1: cold air entering from the left and moving down. 2: clouds with rain. 3: warm air entering from the right and moving up. 4: warm air entering from the top left and moving down toward the clouds. Warm and cold air fronts with points labeled 1 through 4. 1: cold air entering from the left and moving down. 2: clouds with rain. 3: warm air entering from the right and moving up. 4: warm air entering from the top left and moving down toward the clouds. At which point is cool air circulating beneath warm air? 1 2 3 4
Answer:
1
Explanation:
Warm and cold air fronts with points labeled 1 through 4, cold air entering from the left and moving down. Therefore, the correct option is option 1.
What is air?The term "air" is used to refer generally to the concoction of gases that composes the Earth's atmosphere. Nitrogen makes up the majority of this gas (78%), with oxygen, water vapor, argon, carbon dioxide, and trace gases also present.
There is no color or smell in pure air. Dust, pollen, and spores are common airborne contaminants; additional pollutants are alluded to as "air pollution." Since there isn't air in space, the so-called air on another planet, like Mars, would have different manufacturer. Warm and cold air fronts with points labeled 1 through 4, cold air entering from the left and moving down.
Therefore, the correct option is option 1.
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How many moles of bromine are needed
Answer:
8.0 moles
Explanation:
Cobalt(II)chloride is commonly obtained from chemical supply houses as a hydrate with the formula CoCl2.6H2O. An analysis showed that 25.0g of this hydrate contains 11.3g of water. What us the present water by weight in this hydrate?
Answer:
The present water by weight for the hydrate = 45.2%
Explanation:
From the given information;
The present water by weight = (weight of the water/ total weight of the hydrate) × 100
The present water by weight = (11.3/25) × 100%
The present water by weight = 0.452 × 100%
The present water by weight for the hydrate = 45.2%
Which of the following has the smallest atomic radius?
a B
b Al
c F
d N
e Ga
Answer:
c. F
Explanation:
As you go top to bottom down a column of the periodic table, atomic radius increases.
As you go left to right across a period of the periodic table, atomic radius decreases.
Knowing this trend, that means that the smallest atomic radius would be located in the top right of the periodic table. The closest element to that point is fluorine, or answer C.
What is the formula for nickel || dichromate
Answer: Cr2NiO7 is the molecular formula for nickel II dichromate.
An equimolar mixture of X (g) and Y (g) is placed inside a rigid container at constant temperature. The particle diagram above represents the changes that occur over time. Based on the particle
diagram, which of the following best predicts whether or not the system has reached equilibrium by 300 s?
a. It is not possible to determine that the system has reached equilibrium by 300 s because the stoichiometry of the reaction is not known.
b. it is not possible to determine that the system has reached equilibrium by 300 s because the amounts of X, Y, and XY have continued to change
c. The system has reached equilibrium by 300 s because the rate of formation of XY is constant
d. The system has reached equilibrium by 300 s because the rates of consumption of X and Y are equal
Answer:
B
Explanation:
t= 300s has more XY than t=200s, which means that it continues to change
*i think
The system has been predicted to be not possible to reach equilibrium as changing X and Y concentration. Thus, option B is correct.
Equilibrium has been described as the condition in the reaction mixture, when the concentration of the product and the reactant are equal.
The given reaction has been represented as:
[tex]\rm X+Y\rightarrow\;XY[/tex]
Reaction mixture at 300 sThe given reaction has been represented as, with the increase in time, there has been the consumption of the reactant and the formation of product.
The concentration has been continuously changing with time. Thus, the determination of the equilibrium has been difficult with changing X and Y concentration.
Thus, option B is correct.
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Explain the trend in boiling points as you move down group v11
Answer:
Fluorine
Chlorine
Bromine
Iodine
Boiling point increases as you go down the group v11
Explanation:
The elements of Group VII are the halogens consisting of f fluorine (F), chlorine (Cl), bromine (Br), iodine (I). All of which are non metals and exists as diatomic molecules - F2, Cl2, Br2, I2 with intermolecular attractions between the two molecules of each element held by Van der Waals dispersion force.
Moving down the group, the size of the atoms increases in size from Fluorine, F2 and Chlorine, Cl2 which are gases to Bromine , Br2 which exists as a liquid to solid, Iodine, I2. This attributes to the increasing in Strength of the Van der Waals forces as you go down the group. In order to break the vanderwaals forces , More heat energy is required to change thier states leading to the increase in boiling point going down the group.
Fluorine
Chlorine
Bromine
Iodine
Boiling point increases as you go down the group
6. What does a numerical subscript following a set of parentheses in a chemical
formula mean?
A numerical subscript following a set of parentheses represents the number of the group or poly-atomic ion in parentheses are present in a chemical formula.
As an example, calcium hydroxide is [tex]\bold { Ca(OH)_2 }[/tex] . The subscript (2) indicates that calcium hydroxide contains two hydroxide ions.
Therefore, A numerical subscript following a set of parentheses represents the number of the group or poly-atomic ion in parentheses are present in a chemical formula.
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How many electrons will strontium lose to satisfy the octet rule?
Answer:
Two Electrons.
Explanation:
Strontium is the atom with atomic number 38, and electron configuration is [Kr] 5S^2 which mean just two electrons more than Krypton which one of the Noble gases.
Single displacement (replacement)
Explanation:
Single displacement (replacement) is kind of reaction in which 1 atom of reactants only change in product.
A mixture of metals with properties different than the metals by themselves is called a(n) __________.
Answer:
Alloy
Explanation:
What is the farthest distance the moon gets from Earth?
Answer:
When the Moon is the farthest away, it's 252,088 miles away. That's almost 32 Earths.
Explanation: The orbit is not a perfect circle.
Answer:
Explanation:
At perigee its closest approach the moon comes as close as 225,623 miles (363,104 kilometers).
At apogee the farthest away it gets the moon is 252,088 miles (405,696 km) from Earth.
i miss flirting at school, can anyone help ;)
Answer:
Don't worry school's will re-open in August 2021. ._.
Explanation:
i think everyone does. so i'll help you
What mass of CO2 would you need so that you had 2.5 moles of it?
A:44g
B: 88g
C. 110g
D: 132g
Match the landform to its description.
caldera
made of pieces of lava
volcanic soil
material fills in valleys
cinder cone
bowl-shaped depression
shield volcano
wide summit, gentle slope
lava plateau
rich in nutrients
Answer:
cinder cone: made of pieces of lava
shield volcano: wide summit, gentle slope
volcanic soil: rich in nutrients
caldera: bowl shaped depression
lava plateau: material fills in valleys
Explanation:
it’s right
Answer:
Caldera, Bowl-Shaped depression
Shield volcano, Wide summit, Gentle slope
Lava plateau, Material fills in valleys
Volcanic soil, Rich nutrients
Cinder Cone, Made of pieces of lava
Explanation:
Got it right on edge
Which is an example of physical weathering?
limestone in rock dissolving when acid rain flows across it
bits of rock rusting when exposed to oxygen and water
wind blowing off bits of a rock over time
oxidation of certain metals in rock
answer: bits of rock rusting when exposed to oxygen and water
Explanation: i think because when it rains the water is left and freezes and night making the rock expand or start to Rust
How many moles are there in 3.9 grams of potassium
Answer:
0.0997485824191857
Explanation:
Potassium in 1 mol is 39.0983.
Divide 3.9 by 39.0983.
How does Natural selection lead to the Evolution of bacteria?
Answer:
Bacteria can evolve quickly because they reproduce at a fast rate.
Explanation:
Bacteria can evolve quickly because they reproduce at a fast rate. Mutations in the DNA of bacteria can produce new characteristics. A random mutation might cause some bacteria to become resistant to certain antibiotics, such as penicillin.
What are the 2 basic parts of an atom?
Answer:
nucleus and electrons
Explanation:
nucleus contains protons and neutrons
What is the total amount of heat needed to change 2.25 kg of silver at 0.0°C to 200.0°C? The specific heat of silver is 0.129 J/g·°C (2.25 kg = 2250 g)
Answer:
Q = 5805 Joules.
Explanation:
Given the following data;
Mass = 2250g
Specific heat capacity of silver = 0.129 J/g·°C
Initial temperature, T1 = 0.0°C
Final temperature, T2 = 200.0°C
To find the quantity of heat needed;
Heat capacity is given by the formula;
[tex] Q = mcdt[/tex]
Where;
Q represents the heat capacity or quantity of heat. m represents the mass of an object. c represents the specific heat capacity of water. dt represents the change in temperature.dt = T2 - T1
dt = 200 - 0
dt = 200°C
Substituting the values into the equation, we have;
[tex] Q = 225*0.129*200[/tex]
Q = 5805 Joules.
Therefore, the amount of heat needed is 5805 Joules.
Given values:
Mass, [tex]m = 2250 \ g[/tex]Specific heat capacity, [tex]0.129 \ J/g.^{\circ} C[/tex]Initial temperature, [tex]T_1 = 0.0^{\circ} C[/tex]Final temperature, [tex]T_2 = 200.0^{\circ} C[/tex]then,Change in temperature, [tex]dt = T_2-T_1[/tex][tex]= 200-0[/tex]
[tex]= 200^{\circ} C[/tex]
As we know the formula,
→ Heat capacity, [tex]Q = mcdt[/tex]
By substituting the values, we get
[tex]= 225\times 0.129\times 200[/tex]
[tex]= 5805 \ Joule s[/tex]
Thus the above answer is right.
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9. _____________ have a mass number of 0.
10. Particles found in the nucleus are called ______________________.
11. _____________________________ is when electrons are released by a hot filament.
12. The number of protons and neutrons in an element is called the _______________ number.
13. ____________________ was the first atomic bomb dropped.
14. _________________ would be an example of a spontaneous change to the nucleus.
15. _____________ decay results in the release of two protons and two neutrons.
16. __________________ are particles that would be attracted to a positively charged plate.
17. __________________________ coined the word radioactivity.
18. ____________________________________ is used to produced radioactive isotopes by
forcing nuclear reactions.
19. During __________________, the nucleus of a Uranium 235 atom is split into lighter
elements, neutrons, and energy.
20. _________________ are the fastest form of radiation.
21. The number of protons in an element is called the _______________ number.
22. Irene Curie used ___________________ as the source of alpha particles for her research.
23. Uranium goes through _____________ decay ____________ (a number) times to produce
Plutonium.
24. ________________ is a raw Uranium ore which was central to the discovery of radioactivity.
25. The ____________________ was cited in the letter signed by Einstein as having ore with
high concentrations of U-235.
Answer:
sheeesh thats a lot
Explanation:
Answer:
9. Neutronium
10. Protons and Neutrons
11. cathode
12. mass
13. Little Boy
14. Radioactive decay
15. Alpha
16. Electrons
17. Marie Curie
18. Nuclear fission
19. fission
20. Gamma
21. atomic
22. aluminum foil
23. beta/ 2
24. X-rays
25. Einstein–Szilárd letter
The parts of the Earth that contain living organisms
Answer:
Biosphere
The Biosphere --contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth. Within the biosphere, living things form ecological communities based on the physical surroundings of an area.
Explanation:
Answer:
Biosphere
Explanation:The Biosphere --contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth. Within the biosphere, living things form ecological communities based on the physical surroundings of an area. hope this helps (: