You have the compound CH4. The first element is a
(metal, nonmetal) and the second element is a
(metal, nonmetal). You would predict that this would form a(n).
(ionic, covalent) bond.
Answers
Answer:
1. Nonmetal
2. Nonmetal
3. Covalent
Explanation:
Methane is the molecule being described in this question. It has a chemical formula of CH4 where four hydrogen atoms are bonded to one central carbon atom. Carbon as well as hydrogen are non-metallic elements, which means that they can only share their valence electrons to form a COVALENT BOND.
A covalent bond is a type of chemical bond in which two atoms share their valence electrons. It occurs between two non-metallic atoms. In this molecule, CH4, carbon and hydrogen share their valence electrons to form a covalent bond.
Related Questions
Look at the leaves on these plants which pair of sentences about the leaves is true
HELP
Answers
5. Name three different waves you use on a daily basis, Explain how you use them
Answers
Answer:
We use radio waves for communicating or a for television and radio. We use Heat waves to heat things. We uses heat waves everyday for heat up food in the microwave and drying clothing when using the dryer or when drying our hair with a hairdryer. Infrared light is used by electrical heaters, cookers for cooking food, and by infrared cameras which detect people in the dark.
Hopefully, it helps :) Give me brainiest please!
How many atoms are in 4.25 g of Ag?
Group of answer choices
2.76 x 10^26 atoms
2.37 x 10^23 atoms
2.76 x 10^23 atoms
2.37 x 10^22 atoms
Answers
If you place a piece of iron at 90 °C into water that is 25 °C, in which direction heat will flow?
Answers
Answer:
Determine the final temperature when a 25.0 g piece of iron at 85.0 °C is placed into 75.0 grams of water at 20.0 °C.
First some discussion, then the solution. Forgive me if the points seem obvious:
a) The colder water will warm up (heat energy "flows" in to it). The warmer metal will cool down (heat energy "flows" out of it).
b) The whole mixture will wind up at the SAME temperature. This is very, very important.
c) The energy which "flowed" out (of the warmer water) equals the energy which "flowed" in (to the colder water)
Explanation:
In an experiment, marble chips reacted with dilute hydrochloric acid and carbon dioxide gas was given
off. The experiment was done twice, once using small marble chips and again with large marble chips.
Look at the graph. Was the total mass of marble chips the same each time?
Answers
Answer:
no
Explanation:
Small marble chips reacts faster
Zinc chloride + Magnesium →
Answers
Answer:
im assuming you need the balanced equation
Explanation:
Zn + MgCl2 = ZnCl2 + Mg
Answer:
it will mgcl2 + zn
Explanation:
Mg will replace zn from its salt solution
to form mgcl2
hope it helps
2) A student determined the melting point of a substance to be 55.2DC. If the accepted value
is 50.1C, what is the percent error in the student's determination?
A) 12.0 B) 5.10 C) 10.2 D) 9.24
Answers
Answer:
C) 10.2
Explanation:
Formula: Actual-Expected/Expected
The actual was 55.2 while the expected was 50.1
55.2-50.1/50.1=0.101796407 * 100= 10.2%
The percentage error in the student's determination is 10.2%
The correct answer to the question is Option C. 10.2
From the question given above, the following data were obtained:
Measured value = 55.2 °C
Accepted value = 50.1 °C
Percentage error =?Next, we shall determine the absolute error. This can be obtained as follow:
Measured value = 55.2 °C
Accepted value = 50.1 °C
Absolute error =?Absolute error = |Measured – Accepted|
Absolute error = |55.2 – 50.1|
Absolute error = 5.1Finally, we shall determine the percentage error.
Absolute error = 5.1 °C
Accepted value = 50.1 °C
Percentage error =?[tex]Percentage error = \frac{Absolute error }{Accepted value} * 100\\\\= \frac{5.1}{50.1} * 100\\\\[/tex]
Percentage error = 10.2%Therefore, the percentage error in the student's determination is 10.2%.
The correct answer to the question is Option C. 10.2
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What is an isotope and how are they formed?
Answers
Answer:
Long story short, isotopes are simply atoms with more neutrons — they were either formed that way, enriched with neutrons sometime during their life, or are originated from nuclear processes that alter atomic nuclei. So, they form like all other atoms.
Explanation:
You have 1.6 x10 21 atoms of oxygen, what is the mass of that number of atoms
Answers
Answer: 166.023×1023
Explanation:
Mass of 6.023×1023 atoms of oxygen = gram atomic mass of oxygen.
Mass of 6.023×1023 atoms of oxygen = 16g
∴ Mass of 1 atom of oxygen =166.023×1023
B. Fill in the blanks with the correct answer. Choose from the choices inside the box.
1. The bones that protect the delicate organs of the body.
2. It is a long flat bone at the middle of the chest and attached to the ribs,
3. They are the bones that protrude at the base of the neck.
4, This bone connects the backbone and the legs.
5. This bone protects our brain.
6. This system of the body gives structural support and shape.
7. These muscles are connected to the bones and are responsible for movements.
8. These are involuntary muscles that are not attached to the bones.
9. These muscles are moving rhythmically, contracting and relaxing alternately to generate force to
pump blood throughout the body.
10. A system of the body that supports the skeleton and responsible for body movement.
Muscular system
skeletal system
smooth muscles
cardiac muscles
Skeletal muscles
hipbone
collarbone
axial skeleton breastbone
skull
Answers
Answer:
Answer:
Asan po yung choices?
What is the problems in the HYDROELECTRIC?? Please tell me I will mark you !!!!
Answers
Answer:
Using hydroelectricity or Hydropower can cause enviromental threats, such as damaging wild life, habitat, water quality, and obstruct fish behaviors. Also it diminish recreational benefits of rivers.
Explanation:
The first law of thermodynamics is observed when
Answers
Answer:
Explanation:
The first law of Thermodynamics is known as Conservation because it explains that energy is always maintained within a closed system and cannot be created or destroyed. Therefore, this is observed when there is no longer change in temperature in a system. Mainly because the energy is not being transferred to and from another system. Without this transfer of energy, the energy itself gets conserved within the system and the temperature no longer fluctuates.
determine the kinetic energy of an 833.0 kg roller coaster car moving at a speed of 20.0 m/s
Answers
Answer:
166,600J
Explanation:
Kinetic energy (K.E), which is the energy due to motion of a body, can be calculated by using the formula;
K.E = 1/2 × m × v²
Where;
K.E = kinetic energy (joules)
m = mass of body (kg)
v = speed or velocity (m/s)
According to this question, the mass of the roller coaster is 833.0 kg while its velocity/speed is 20.0m/s.
K.E = 1/2 × 833 × 20²
K.E = 1/2 × 833 × 400
K.E = 1/2 × 333200
K.E = 166,600
Therefore, the kinetic energy of the roller coaster car is 166,600J.
NH4NO3->N2O+2H2O How many grams of NH4NO3 are required to produce 33.0 games of N2O
Answers
Answer:
the moles of N2O are 33/(14.2 + 16) = 0,75 (mol)
NH4NO3 -----------> N2O + 2H2O
0.75 <--- 0.75
=> The moles of NH4NO3 are 0,75 mol
=> m = 0,75(14.2 + 4 + 16.3) = 60 (g)
Explanation:
Answer:
60 grams of NH4NO3
Explanation:
2222222c is right, but here's a better visualization of the answer!3. How many grams of water will be produced from 15.0 grams of Methane? *
CH4 +2 02 → CO2 + 2H2O
Answers
According to molar weights :
16 gm CH4 + 64 gm O2 = 44 gm CO2 + 36 gm H2O
Since 16 gm CH4 produce 36 gm H2O
Hence 2.5 gmCH4 produce 36×2.5/16 gm H2O
= 5.265 gm of H2O
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Related Questions (More Answers Below)
The atmosphere insulates the planet by trapping which of the following?
Solid particles
Thermal energy
Ice crystals
Wind
Answers
Answer:
The answer is thermal energy
Explanation:
Which of Earth's five spheres is involved when a volcano erupts?
Answers
Answer:
[;
Explanation:
Mudflows (geosphere) and flooding may occur downstream from volcanoes and may inundate streamside communities (biosphere).
How many atoms are in 355 mol Na?
Answers
Answer:
2.138 x 10^26 atoms Na
Explanation:
atoms Na = 355 mol Na x (6.022 x 10^23 atoms Na/1 mol Na) = 2137.81 x 10^23 atoms Na = 2.138 x 10^26 atoms Na
Will give brainliest
Answers
Answer:
12.5
1.95x10^-10
1.5
0.5
in that order
Explanation:
CAN SOMEONE PLEASE HELP ME OUT WITH THESE 2 QUESTIONS? ILL GIVE YOU A GOOD RATING!!
Answers
Copper oxide reacts with carbon to form copper and carbon dioxide. State what has been reduced giving a reason for your answer
Answers
Answer:
copper oxide has been reuced into copper
Explanation:
The copper has gained electrons to become stable on its own without oxygen
OILRIG- show that reducution is the gain of electrons
A 5.0 balloon containing nitrogen gas is cooled from 25 degrees to 5°C. What is the final volume of the balloon?
Answers
Answer:
5.4
Explanation:
V1=5.0
T1=25+ 273=298
V2= z(unknown)
T2=5+273=278
V1/T1 =V2/T2
V2=V1T2/T1
=5*298/278
=5.4
is the measure of this flow? its for thermal energy transfer interactive
Answers
At what temperature does water freeze?
Answers
Answer:
32 degrees
Explanation:
if the Gulf Stream is warm and the air in Europe is cold, what kind of energy transfer will happen between the water and the air?
Answers
Answer:
If it weren't for the warm water of the Gulf Stream, England would have a much colder climate
Explanation:
Answer:
If it weren't for the warm water of the Gulf Stream, England would have a much colder climate
Explanation: hope it helps ^w^
Which of the following summaries expresses the main points of the passage best?
I believe gravity is the most important aspect of our universe. Without it we would all be floating off
into the universe. There wouldn't be any orbits; instead, all planetary bodies would simply float
around, running into each other when they crossed paths and just wandering forever.
There is a gravitational force between all objects in the universe. Gravitational force is what keeps all
components of our solar system in orbit around the Sun, as well as moons in orbit around planets. The
force of gravity affects Earth's tides and holds us on Earth's surface. The force of gravity between
objects depends on their masses and the distance between them.
Gravity is hard to understand and scientists have little to no understanding of how it works. We know
that gravity is out there, but the specifics are often lost on us. Plants, animals, and humans are all able
to grow tall due to the pull on Earth from the Sun. Without the Sun we would all just stretch out along
Earth's surface
None of the above
Answers
Answer:B
Explanation:
The summary which expresses the main points of the Gravitational force best is the second one.
What is gravitational force?Gravitational force is a attraction force which is present between two objects and represented as:
F = gm₁m₂ / r², where
g = gravitational constant
m₁ = mass of one object
m₂ = mass of another object
r = distance between two objects
Because of gravity all objects will have a accurate position and particular order.
Hence second paragraph expresses best.
To know more about gravitational force, visit the below link:
https://brainly.com/question/19050897
A molecule of glucose is comprised of 6 atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen.
According to the information given above, what is the molecular formula of glucose?
Answers
Answer:
C6H12O6 the third choice
According to the given information , the molecular formula or the chemical formula of glucose is C₆H₁₂O₆.
What is chemical formula?Chemical formula is a way of representing the number of atoms present in a compound or molecule.It is written with the help of symbols of elements. It also makes use of brackets and subscripts.
Subscripts are used to denote number of atoms of each element and brackets indicate presence of group of atoms. Chemical formula does not contain words. Chemical formula in the simplest form is called empirical formula.
It is not the same as structural formula and does not have any information regarding structure.It does not provide any information regarding structure of molecule as obtained in structural formula.
There are four types of chemical formula:
1)empirical formula
2) structural formula
3)condensed formula
4)molecular formula
Learn more about chemical formula,here:
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Similes and metaphors are poetic devices. What does this
mean?
Answers
Answer:
Both similes and metaphors are a poetic device because authors can be seen using them while writing their poem to give the reader a deeper understanding of the character and the setting. Metaphor is a figure of speech that talks about one this but refers to another. On the other hand, a simile is a figure of speech that compares two things together. Usually using the work "like" or "as".
Hoped it helped! Have a great day!
I need help in this problem for an assignment. Please
Answers
Answer:
1) increases
2)increases
3) Decreases
4) increases
5) increase
6) decreases
Explanation:
Let us remember that in a solid, the molecules of the substance are trapped in fixed positions hence the entropy of a solid is less than that of liquid as well as less than the entropy of a gas.
Reaction (1) and (2) deal with a change of state from solid to liquid or gas leading to increase in entropy.
In reaction (3) the aqueous reactants convert into a liquid product leading to a decreases in entropy.
Reaction (4) and (5) has to do with change of a solid to a gas as well as an increase in volume leading to an increase in temperature.
For reaction(6), a solid is formed so entropy decreases
How many grams of sand (SiO,) would need to be weighed out to equal 0.3 moles?