HELLPP!!! What is needed in order to write the electron configuration for elements? Choose all that applies.
Answers
Answer:
atomic number and electrons
Explanation:
Related Questions
Breathe.
You are going to be okay.
Breathe and remember that you've been in this place before. You've been this anxious and scared... and YOU'VE SURVIVED.
Breathe and know that you can survive this too. These feeling can't break you.
They're painful and debilitating, but you can sit with them and eventually... they WILL pass.
Maybe not immediately, but sometimes soon, they are going to fade, and when they do, you'll look back at this moment and laugh for having doubted your resilience. I know it feels unbearable right now, but keep breathing, again and again. THIS WILL PASS.
Answers
Answer:
thank you so much i really needed that
Explanation:
A 13.9 - g piece of metal ( specific heat capacity is 0.449 /g^ C)who whose temperature is 54.2 degrees * C was added to a sample of water at 13.4 degrees * C in a constant - pressure calorimeter of negligible heat capacity . If the final temperature of the water is 15.6 °C, calculate the mass of the water in the calorimeter .
Answers
Answer:
26.2g = Mass of water in the calorimeter
Explanation:
The heat absorbed for the water is equal to the heat released for the metal. Based on the equation:
Q = m*C*ΔT
Where Q is heat, m is the mass of the sample, C is specific heat of the material and ΔT is change in temperature
Replacing we can write:
[tex]m_{metal}*C_{metal}*dT_{metal}=m_{water}*C_{water}*dT_{water}[/tex]
13.9g * 0.449J/g°C * (54.2°C-15.6°C) = m(H₂O) * 4.184J/g°C * (15.6°C-13.4°C)
240.9J = m(H₂O) * 9.2J/g
26.2g = Mass of water in the calorimeterWhich of the following is the smallest particle of matter?
A. Atom
B. Cell
C. Molecule
D. Organ
Answers
Answer:
A. Atom
Explanation:
Hope this helps !
can someone help answer this? thanks!
if surface tension relies on intermolecular forces, how could you make surface tension decrease?
(think about how and where molecules bind to each other)
Answers
Answer:
We could make the surface tension to decrease by removing and causing a disruption to the intermolecular forces(hydrogen bonds).
Explanation:
To explain this answer, we will consider an experiment whereby a paper clip is made to rest at the top surface of water inside a container/beaker.
First of all, the intermolecular forces present in water are also known as hydrogen bonds.
It's relationship with surface tension is that when there is high surface tension in the water, this high tension will allow the paper clip to rest on top of the hydrogen bonds present at the top surface in between the water molecules.
However, the surface tension will decrease when we remove or cause a disruption to the intermolecular forces (hydrogen bonds).
when 48 .0g of carbon reacts with oxygen gas to form carbon dioxide, no carbon or oxygen is left over. How much oxygen is reacted if 176.0g of carbon dioxide is produced
Answers
Answer:
128g
Explanation:
Given parameters:
Mass of carbon = 48g
Mass of carbon dioxide = 176g
Unknown:
Mass of oxygen that reacted = ?
Solution:
Every chemical reaction must obey the law of conservation of mass. It states that "in a chemical reaction, matter is neither created nor destroyed" .
So;
Mass of carbon + Mass of oxygen = Mass of carbon dioxide
Mass of oxygen = Mass of carbon dioxide - Mass of carbon
Mass of oxygen = 176 - 48 = 128g
What information does a life-cycle diagram of a product contain?
a) Only information about the materials used to make the product
b)Information about the entire process of making a product from start to finish
c) Only information about the recycling process used for that material
d) Only information about how the product is made in a factory
Answers
Answer: c
Explanation: i think its right on edge
What does microbiome do to your cells?
Answers
Describe two differences between transition elements and alkali metals?
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Explanation:
On the periodic table, we can find a wide range of elements from alkali metals, to the alkali earth metals, transition metals and through to the noble gases.
The alkali metals are found on the first group in the periodic table and they are group of metals. Also, the transition elements are also a group of metals.
Transition elements are known to have variable oxidation states whereas, alkali metals have an oxidation state of +1. Transition metals belong the d-block on the periodic table whereas alkali metals are found in the first group on the periodic table.what is the magnitude of earthquake took place in manila?
A.5.2
B.5.3
C.5.4
D.5.5
Answers
Answer:
i believe its 5.2
Explanation:
Which has more mass: a stick of 4 counting cubes or a pile of 4 counting cubes?
Answers
i have thids quuuuesstttttttiopn
What are the three parts of the cell theory?
Answers
Second cell theory. Cells are the basic unit of structure and function in living things.
Third cell theory. All cells are produced from other cells
A vernier calipers are more precise than metre rule
True
False
Answers
Answer:
true
Explanation:
Vernier caliper can give exact measurements in mm.
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Which statement below BEST describes the difference between mixtures and pure substances? Group of answer choices Mixtures are made of a single kind of matter but a pure substance is two or more substances that are chemically bonded. Pure substances can be physically separated but mixtures cannot be physically separated. Pure substances are not created through a chemical reaction and mixtures are the result of a chemical reaction. Mixtures can be physically separated but pure substances cannot be physically separated.
Answers
Answer: Mixtures can be physically separated but pure substances cannot be physically separated.
Explanation: Mixtures can be physically separated by using methods that use differences in physical properties to separate the components of the mixture, such as evaporation, distillation, filtration and chromatography. A pure substance, any compound or element, can't be separated into different atoms by physical methods. Pure substances are compounds and elements (made up of the same atom or same molecule respectively), while mixtures are an assortment of different substances put together. Hope this helps ^-^.
Pure substances cannot be physically separated but mixtures can be physically separated. Therefore, option (4) is correct.
What are a mixture and pure substance?Pure substances such as elements cannot be created by chemical reactions and cannot be broken down into simple substances. They have only one type of atom in the entire composition.
A pure substance consists of two or more elements that are chemically combined and has a fixed composition such kind of pure substance is called a compound. Pure substances can not be physically separated such as gold, silver, copper, etc.
A mixture is formed when two or more different substances are only physically combined or mixed together. They are not formed by the chemical reaction so that a mixture can be separated physically into its original components.
A mixture cannot be formed from a single type of matter even a homogeneous mixture has two or more types of substances but the composition of the substance in the entire mixture is always the same.
Learn more about mixture and a pure substance, here:
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Q1; ___________ have almost half a set of electrons in the outer most energy level.
1- metalloids
2- metals
3- nonmetals
Q2;________ are known to be gasses at room temperature.
1- nonmetals
2- metalloids
3- metals
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Answer:
2 metalliods....
1 metals
Are two atoms of the same element identical?
Answers
Answer:Two atoms of the same chemical element are typically not identical. First of all, there is a range of possible states that the electrons of an atom can occupy. Two atoms of the same element can be different if their electrons are in different states.
Explanation:This is not mine write it in your own words.
Can someone help me determine the name of the formula
Answers
SnI2 is Tin(II) Iodine
Sni4 is Tin
SnS is Tin(II) Sulfide
SnS2 is Tin Sulfide
A 5.0 g sample of metal was heated to a temperature of 100.0 °C then placed into a calorimeter containing 35 mL of water at 20.0°C.
The final temperature was 26.5°C What is the specific heat capacity of the metal?
Answers
The specific heat capacity of the metal : c = 2.59 J/g °C
Further explanationGiven
5 g sample
35 ml water = 35 g
Required
The specific heat capacity of the metal
Solution
Heat can be formulated :
Q = m.c.Δt
Q in = Q out
Q absorbed = Q released
Q water = Q metal
35 g x 4.184 J/g °C x (26.5-20)= 5 x c x (100-26.5)
951.86 J = 367.5 x c
c = 2.59 J/g °C
Step 7: Determine the Limiting Reactant (Trial 2)
50
Analysis: The limiting reactant(s) appeared to be
because ...
Answers
Answer:
aluminum
no aluminum is left over
Explanation:
the next answers for step 7 are 0.019, 0.0093, aluminum
Answer:
Aluminum because no aluminum is left over
Explanation:
Calculate the mass of a
molecule of sulfur (IV) oxide
and express it in grams,
kilograms and daltons.Please help
Answers
Answer:
10.63 × 10^(-24) g
10.62 × 10^(-27) kg
64 daltons
Explanation:
Formula for sulfur (IV) oxide is; SO2
Now,
Atomic mass of Sulphur is 32 while atomic mass of oxygen is 16.
Thus;atomic mass of SO2 is;
32 + (16 × 2) = 64 amu
Now,
1 mole of a substance has 6.02 × 10^(24) molecules
Therefore mass of 1 molecule of SO2 will yield;
Mass(g) = 64/(6.02 × 10^(24)) = 10.63 × 10^(-24) g
Converting to kg, we have;
10.63 × 10^(-24) ÷ 1000 = 10.62 × 10^(-27) kg
Now, converting to Dalton, we know that;
1kg = 6.022 × 10^(26) amu
Thus; 10.62 × 10^(-27) kg will yield;
(10.62 × 10^(-27) × 6.022 × 10^(26))/1 ≈ 64 amu
Now, from conversion;
1 amu = 1 Dalton.
Thus, 64 amu = 64 daltons
Scientists have observed that when oceanic plates and continental plates collide, the oceanic plate is driven under (slides below) the continental plate. The MOST LIKELY reason for this happening is
Answers
Answer:
thi s is 4 ano
Explanation:
sjfdbbjjbfogfg
Answer:
the continental plate is bigger than the oceanic plate.
Explanation:
Which statement describes the conditions in which diamonds form?
A.they form deep underground, in certain areas that are under a great deal of pressure.
B.they form as water evaporates on the shores of very salty bodys of water.
C.They form as water evaporates on the shore of any body of water.
D.they form deep underground, in most regions of earth.
Answers
Answer:
b for sure
Explanation:
At what temperature will equal masses of HCl and NH4CI dissolve in 100g water?
Answers
Explanation:
NH4Cl at 90°C _.70 a ... m aximum amount of solute that will dissolve at that specific temperature (no ... A mass of 100 g of NaNO3 is dissolved in 100 g of water at 80°C. Is the ... SO2, NH3, HCl.
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please helppp!!
How do ion charges differ
for the fourth main group
column and the transition
metals?
Answers
Answer:
How do ion charges differ for the fourth main group column and the transition metals? Do not have common charges. Transition metals tend to form positive ions, but the number of electrons that are lost varies. Describe how atoms with a large difference in electronegativity form ionic bonds.
Explanation: ?
Coffee is an example of a
Answers
Answer:
I think it is mixture and of chemical reaction
Can you guys help me I have missing assignments and I need help.
Answers
PLeas hurry
Which of the following matches a human action with its impact?
Construction of dam : Scarcity of water for animals
Use of fertilizers : Increase in the population of aquatic animals
Decrease in honeybee population : Increase in plant population
Construction of roads : Improvement in quality of water in local lakes
Answers
Answer:
construction aka A
Explanation:
got 100
potassium(k)=1s22s22p63s23p64s
Answers
Answer:
That is correct.
Explanation:
What is the name of the ionic compound with the formula:
AlF3
Answers
Answer:
potassium chloride.
what is selection in science?
Answers
Answer:
Selection, in biology, the preferential survival and reproduction or preferential elimination of individuals with certain genotypes (genetic compositions), by means of natural or artificial controlling factors.
Explanation:
Hope it helps you
Natural selection, process that results in the adaptation of an organism to its environment by means of selectively reproducing changes in its genotype, or genetic constitution.
Nonliving and living things are made of matter.which of the following statements is true about matter
Answers
Answer:
list the statements so i can help
Explanation:
Answer :Nonliving and living things can be made up of combined elements
Explanation: