Answer:
subduction zone
Island Arc volcanoes
earthquakes
12. What are two different ways to turn a turbine to generate electricity without using fossil
fuels?
HELPP
Answer:
two different ways are 1st by using water and 2nd by using wind these also not harm our environment
Boiling Point temperatures are dependent
on the...
1. Number of atoms in a compound
2. Amount of oxygen in the molecule
3. Types of Elements present
4. Intermolecular Force Strength
Can you please help me this is due today and I really need help.
Sn + 2Ha -> SnCl2 + H2
a. synthesis
b. single replacement
C. combustion
d. double replacement
e decomposition
Answer:
your question is totally wrong. there is no cl2 in reactants.
Find the volume of a gas at 800.0 mm Hg and 40.0 °C if its volume at 720.0 mm Hg and 15 °C is 6.84 L.
Answer:
2 C6H6 + 15 O2 ( 12 CO2 + 6 H2O
Explanation:
6.156 L is the volume of a gas at 800.0 mm Hg and 40.0 °C if its volume at 720.0 mm Hg and 15 °C is 6.84 L.
What is an ideal gas equation?The ideal gas law (PV = nRT) relates the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).
[tex]P_1V_1=P_2V_2[/tex]
[tex]P_1[/tex] = 800.0 mm Hg
[tex]V_1[/tex] = ?
[tex]P_2[/tex] = 720.0 mm Hg
[tex]V_2[/tex] = 6.84 L
Putting all the value in the equation;
[tex]P_1V_1=P_2V_2[/tex]
800.0 mm Hg X [tex]V_1[/tex] = 720.0 mm Hg X 6.84 L
[tex]V_1[/tex] =6.156 L
6.156 L is the volume of a gas at 800.0 mm Hg and 40.0 °C if its volume at 720.0 mm Hg and 15 °C is 6.84 L.
Learn more about an ideal gas equation here:
https://brainly.com/question/9360986
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If an element has 12 protons, 13 neutrons, and 15 electrons, what is its mass?
Answer:
25
Explanation:
mass number = protons + neutrons
= 13 + 12 = 25
Determine the number of particles present in 1.55 mol of sodium.
Answer: 1024 sodium ions
Explanation: The mathematical equation, N = n × NA, can be used to find the number of atoms, ions or molecules in any amount (in moles) of atoms, ions or molecules: 10 moles of helium atoms = 10 × (6.022 × 1023) = 6.022 × 1024 helium atoms. 10 moles of sodium ions = 10 × (6.022 × 1023) = 6.022 × 1024 sodium ions. (that took long)
NHa is an
example of
O an element.
O a mixture.
O a compound
O an atom.
Answer:
what is the question
Explanation:
Answer:
COMPOUND
Explanation:
I THINK
6. Steel is a metallic-like material but it is not a pure element. It is a alloy.
True
False
Answer:
true
hope this helps! have an amazing day!
Which statement best describes how hou measure density
Answer:
density=mass/volume
Explanation:
density is defined as mass per unit volume.
Would you classify the atoms in the table as pure substances?
Answer:
Yes
Explanation:
Atoms are generally classified as pure substances. A pure substance has the following properties:
All parts are the same throughout i.e. homogeneousThey have definite compositionThe cannot easily be broken down into simpler substances by physical means. Separation by physical methods is not easy. They have unique sets of physical properties.Elements and compounds are generally classified as pure substances. Since atoms are the building blocks of pure substances, they can be classified as one.
Please help i cant find any answers...
Using the balanced equation below,
how many grams of cesium xenon
heptafluoride would be produced
from the complete reaction of 37.8 g
cesium fluoride?
CSF + XeF6 CsXeF7
Answer:
98.8
Explanation:
CsF + XeF6 --> CsXeF7
37.8g ................. ?g
37.8g CsF x (1 mol CsF / 151.9g CsF) x (1 mol CsXeF7 / 1 mol CsF) x (397.2g CsXeF7 / 1 mol CsXeF7) = 98.8g CsXeF7 .......... to three significant digits
Answer:
28.0
Explanation:
If an object what is 30 kg of mass is moving at 10 m/s to the right how much kinetic energy does it have
Explanation:
m=30
v=10
K.E=1/2mv^2
=1/2×30×10^2
=1/2×30×100
=1500 joule
NEED HELP ASAP FOR MY TEST
Which is an example of a mixture that can be separated using a filter and a funnel?
A) Kool Aid B) Coca Cola C) salt water D) Sand and water mixture
Answer: D sand and water
Explanation:
Since water is less dense than sand it could be easily separated if you go to the ocean that’s why the water is at the bottom of the sand but on above the sand so it will be able to separate easily.
Answer:
Answer: D sand and water
Explanation:
How much energy is required to raise the temperature of 0.2 kg of aluminum
from 15°C to 18°C?
5382 J
B. 538 J
C. 600 J
D. 179 J
Balance the given
equation
SnO → Sn + O2
Sn
Sn
О
O
Explanation:
the balanced equation is: .........
Answer:
i agree with her/him^^^^^^^^^^^^^^^^^^^^^^
Explanation:
What is the wavelength of an electromagnetic wave that travels at 3 x 10^8 m/s and has a frequency of 60 mhz? (1 mhz = 1,000,000 hz)?
Answer:
5m
Explanation:
Given parameters:
Speed of wave = 3 x 10⁸m/s
Frequency = 60mhz = 60 x 10⁶Hz
Unknown:
wavelength = ?
Solution:
To solve this problem;
we use the expression:
V = F ∧
V is the velocity
F is the frequency
∧ is the wavelength
Now insert the parameters and solve;
3 x 10⁸ = 60 x 10⁶ x ∧
So;
∧ = 5m
when a car goes around a curve at a constant speed, in which direction is it accelerating
A. In the direction of the velocity
B. In the opposite direction of the velocity
C. Outside the curve
D. Inside the curve
Find the average atomic mass for boron if 19.9% of boron atoms have a mass of 10.0129371 amu and 80.1% have a mass of 11.0093055 amu. Round to 3 significant figures.
Answer:
Average atomic mass = 10.8 amu
Explanation:
Given data:
Average atomic mass = ?
Percentage of boron having mass 10.0129371 amu = 19.9%
Percentage of boron having mass 11.0093055 amu = 80.1%
Solution:
Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) / 100
Average atomic mass = (19.9×10.0129371 )+(80.1×11.0093055) /100
Average atomic mass = 199.3 + 881.8 / 100
Average atomic mass = 1081.1 / 100
Average atomic mass = 10.8 amu.
What is the name of the molecule with 1 iron atoms and 2 oxygen atoms
Answer:
Carbon
Explanation:
i took this asdf asdf asdf sadf as faasdfasdf
asd
f asdfas
df
asdf
Answer:
Fe, or the iron atom
Explanation:
The subscripts designate the number of atoms in the molecule. If there is no subscript, it is understood to be 1.
HELP ASAP
Which is involved in the formation of sinkholes?
O acidic rainwater
O
mining
O rising sea level
winds
Answer:
Sinkholes this is the answer
Answer:
B. Mining
Explanation:
trust
Help me if u good at science:)
How are mass and weight alike?
O A. Both are measured in pounds.
B. Both depend on how much matter an object has.
C. Both change with gravitational force.
OD. Both are the same everywhere in the universe.
Answer:
I belive it is B
How many moles of carbon would 50.0 g of carbon represent?
Answer:
600 grams
Explanation:
The value of the mole is equal to the number of atoms in exactly 12 grams
12x50=600
_______________ are filled with special absorbing elements that move up and down between the uranium rods to keep the atoms from getting out of control.
Answer:
The correct answer is - control rods.
Explanation:
Control rods are filled with special absorbing agents such as boron, cadmium, silver, and others to absorb as many neutrons as to control the fission reaction by moving them up and down in between uranium rods.
These control rods are used to prevent the nuclear reaction from getting out of control in the nuclear plant or reactor by absorbing the neutrons and prevent uranium to convert.
explain how the removal of thermal energy (heat) from matter affects its particles
Answer:
You can change an object's state of matter by adding or removing thermal energy. When you add thermal energy to an object, these things can happen: Particles move faster
Explanation:
The blue color in some fireworks occurs when copper(I) chloride is heated to approximately 1500 K and emits blue light of wavelength 4.50 X 10 squared nm. How much energy of one photon of this light carry?
Given that,
Temperature, T = 1500 K
Wavelength, [tex]\lambda=4.5\times 10^2\ nm[/tex]
To find,
The energy of one photon of this light.
Solution,
We know that, the energy of a photon is given by the formula as follows :
[tex]E=\dfrac{hc}{\lambda}\\\\E=\dfrac{6.63\times 10^{-34}\times 3\times 10^8}{4.5\times 10^2\times 10^{-9}}\\\\=4.42\times 10^{-19}\ J[/tex]
So, the required energy is [tex]4.42\times 10^{-19}\ J[/tex].
How many moles are there in 2.0 grams NaCl?
Answer:
In 2 grams of NaCl are 116,88 mols
Explanation:
One mol of NaCl (6.02 x1023 formulas) has a mass of 58.44 g.
Calculation: 58,44g X 2 = 116,88
what do you know about periodic tables ?
Answer:
That it's really hard to remember and it's filled with elements
Explanation:
This planet is also called the "red planet"
O Mercury
O Venus
O Earth
O Mars
Answer:
mars
Explanation:
how can volcanic ash change Earths surface ?
Answer:
well, it made volcanos grow larger and it developed land
Explanation:
Gases and solids injected into the stratosphere circled the globe for three weeks. Volcanic eruptions of this magnitude can impact global climate, reducing the amount of solar radiation reaching the Earth's surface, lowering temperatures in the troposphere, and changing atmospheric circulation patterns.