Answer:
Explanation:
Given: 1 dietary Calorie = 1000 calories
1 calorie = 4.184 Joules
But,
1 dietary Calorie = 1 Kcalorie
= 1000 x 4.184 Joules
= 4184 Joules
= 4.184 KJoules
1 dietary Calories contains 4.184 KJ of energy.
A bottle of Coca cola contains 42 Kcalories; thus,
1 Kcalorie = 1000 calories
= 4.184 KJoules
Energy = 42 x 1 dietary Calories
= 42 x 4.184 KJoules
= 175.728 KJoules
Energy ≅ 176 KJ
So that;
In my bottle of coca cola, there are 176 KJ of energy.
THIS is SO easy PLEASE help ME ! ill ALSO mark YOU brainliest !
The Law of Superposition allows us to determine:
a
which rock layers are the oldest
b
the relative age of layers of rocks and the fossils in them
c
the exact or absolute age of rock layers
d
a and b are correct
Answer:
d . a and b are correct
Explanation:
The law of superposition allows us to determine the age of rock layers and also that of the fossils within them.
The law of superposition states that "in an undeformed sequence of strata, the oldest rock layer is at the bottom and the youngest is on top".
Using this law, geochronologists can determine the relative ages of rock layers. The youngest layer will be found on top. The oldest at the bottom of the sequence. The arrangement of the layers and the fossils there in can also tell us about the ages of the fossils themselves.Complete the sentences
( solid, liquid or gas)
What do you notice about the temperature?
(increases or decreases)
What do you notice about the movement of the molecules and the spacing between the molecules?
( INCREASES or DECREASES)
1. When you
click on the yellow button,
The solid becomes
Liquid
The temperature
increases
The movement of the molecules ____increases__________________
and the space between molecules __increasing_____________________
2. When you click on the green button
The liquid becomes
Gas
The temperature
increases
The movement of the molecules ______increases________________
and the space between molecules ________________________
3. Click on the yellow button again
And the gas becomes
liquid
The temperature
decreases
The movement of the molecules ______________________
and the space between molecules ________________________
4. Click on the red button,
And the liquid becomes
The temperature
The movement of the molecules ______________________
and the space between molecules ________________________
Answer:
xcvbn
Explanation:
nkj
Answer:
what he said
Explanation:
The process by which CO2 gas releases heat energy to become dry ice is called :
evaporation
freezing
deposition
sublimation
i believe its deposition
3. What type of particles move to create electicity?
Electrical energy is caused by moving particles that have a negative or positive charge. These charged particles are called electrons. The faster the electrons are moving, the more electrical energy they carry. Electrical energy commonly moves through a wire in an electrical circuit.
[tex]\huge\boxed{Electrons.}[/tex]
_____________________________________Explanation...Electrons are particles that move to create electricity. In other words, they are responsible for electric currents. Thus, the answer should be Electrons.
_____________________________________[tex]\boxed{Hope\;i\;helped!}\\\\\\\huge\boxed{Thanks,Plip.}[/tex]
Which of the following is not an organic compound?
C 6H 14
CO 2
CH 4
C 12H 22O 11
Answer:
CO2 I believe
Explanation:
It doesn't have any hydrogen
Examine the diagram of a cell.
Which organelle is marked with an X?
lysosome
nucleus
chloroplast
vacuole
Answer:
chloroplast
Explanation:
i took the test
How do you measure the volume of a rubber duck?
Answer:
Im sorry i though this was a joke i don't know I'm sorry:
[tex]\huge\boxed{Buoyant Force}[/tex]
_____________________________________ARCHEMEDIS LAW (EUREKA)A body at rest in a fluid is acted upon by a force pushing upward called the buoyant force, which is equal to the weight of the fluid that the body displaces. If the body is completely submerged, the volume of fluid displaced is equal to the volume of the body. That is how we find the Volume of the Irregularly shaped objects.
_____________________________________FUN FACT:Archemedes the GREAT GREEK PHYSICIST was in a real problem finding out the formula of how to find the volume of irregular object. After countless failures in finding it, once he was going to get a apparently "BUBBLE BATH", So when he got into the tub the water displaced and got out from the tub resulting in the splash of water. His MIND CLICKED that we could find the volume by submerging the irregular object into the measured water and then substract the displaced water from it. He ran NAKED out of the house because of the happiness saying EUREKA! EUREKA! which literally means "I have found it". Thus this law of Archemedes is also called EUREKA LAW. So to simply remember how to find volume of irregular object keep EUREKA in mind.
_____________________________________[tex]Best Regards,[/tex]
[tex]"BORZ"[/tex]Which is Chemical Equation is Balanced?
CH, +0,------CO,+2H2O
4A1+30,-----2A1,0,
H2+O2-----2H,0
Which of the following elements has the lowest ionic radius?
Answer:Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest. So the asnwer is helium
Explanation:
3. What is physical science mainly about? *
the relationship between matter and energy
O the relationship between matter and light
the relationship between molecules and matter
O the relationship between light and energy
PLZ HELP!!
Answer: D
Explanation: Physical science is the study of the inorganic world. That is, it does not study living things. (Those are studied in biological, or life, science.) The four main branches of physical science are astronomy, physics, chemistry, and the Earth sciences, which include meteorology and geology.
PLease help I need to get this test done and whoever helps first I will mark brainliest Love you!!!!!
Answer:
moon
Explanation:
Answer:
Explanation:
its the moon. the moon covers the sun causing it to be completely blakened out. and if thats not right then lifes a lie cuz i got blinded pretty bad in one of my eyes for looking at it with it
Which part of the electromagnetic spectrum has a lower frequency than visible light?
gamma rays
x-rays
infrared
ultraviolet
Answer:
Infrared Radiation
Explanation:
Infrared Radiation
The range of infrared frequencies extends up to the lower limit of visible light, just below red.
The answer is infrared.
According to the picture above, which layer contains :
Answer:
a) layer 4
b) layer 1
Explanation:
Older the layer=older the fossils
Newer the layer=newer the fossilss
Name:
R = 0.0821 Latm
PV = nRT
P1 V1\ n1 T1 =P2 V2/ n2 T2
1. What volume, will be occupied by 3.86 g of C2H2 gas (acetylene) at 2.50 atm and a temperature
of 28.5 °C?
2. A gas at 650.0 torr and 75 °C is cooled to 25 °C. What is the pressure of the gas after it has
cooled?
Answer:
1. V = 1.47L
Explanation:
1) Using PV = nRT
Where;
P = pressure (atm)
V = volume (L)
R = gas constant (0.0821 Latmk mol)
n = number of moles
T = temperature (K)
To get number of moles, we say mole = mass/molar mass
Molar Mass of C2H2 = 12(2) + 1(2)
= 24 + 2 = 26g/mol
mole = 3.86/26
mole = 0.148mol
T (K) = 28.5°C + 273.15
T(K) = 301.65K
PV = nRT
2.5 × V = 0.148 × 0.0821 × 301.65
2.5V = 3.665
V = 3.665/2.5
V = 1.466
V = 1.47L
R =
PV = nRT
P1 V1\ n1 T1 =P2 V2/ n2 T2
1. What volume, will be occupied by 3.86 g of C2H2 gas (acetylene) at 2.50 atm and a temperature
of 28.5 °C?
2. A gas at 650.0 torr and 75 °C is cooled to 25 °C. What is the pressure of the gas after it has
cooled?
What is the frequency of a photon whose energy is 5.4 ´ 10-19 J? (h = 6.626 ´ 10-34 J·s)
Answer:
8.15 x 10¹⁴Hz
Explanation:
Given parameters:
Energy of photon = 5.4 x 10⁻¹⁹J
h = 6.626 x 10⁻³⁴J.s
Unknown:
Frequency of the photon = ?
Solution:
The energy of a photon is given as;
E = hf
h is the Planck's constant
f is the frequency
f = [tex]\frac{E}{h}[/tex] = [tex]\frac{5.4 x 10^{-19} }{6.626 x 10^{-34} }[/tex] = 8.15 x 10¹⁴Hz
How is the process of using patterns to predict phases of the moon similar to the process Mendeleev used to predict undiscovered elements?
The characteristic of some repeating property can be used to find the answer is
The periodic table and the moon phases can be ordered according to some repeating property, you can create an ordered table and leave the gaps for the unknown properties.
The periodic table created by Mendeleev was initially based on the atomic weight of the elements, but he realized that the similarities of the atoms were greater if he used the atomic number, so he changed the ordering.
Mendeleev found that elements with the same number of electrons in their last shell had similar properties, when he ordered them he found that there were holes in the table, shortly after the work of many researchers the holes were completed and found numerous new chemical elements.
In the observation of the phases of the Moon around the earth it is found that for short measurements there are four phases, for longer measurements in addition to these four phases there are several higher repetition periods, with repeated observation the phases and periods are found. .
We can see that the two jobs are searched for, which is repeated and a table is created, leaving the spaces that are not known empty, with subsequent jobs filling these holes.
In conclusion, with the characteristics of some repeating property, the answer can be found is
The periodic table and the phases of the moon can be ordered according to some repeating property, you can create an ordered table and leave the gaps for the unknown properties.
Learn more about the periodic table here:
https://brainly.com/question/3376367
How many moles of SO3
are in 2.4 x 1024
molecules of S03?
Answer:
2457.6
Explanation:
I calculated the answer and got it right.
How many orbitals in iron are half-filled, that is, have only one electron?
(A) 1
(B) 2
(C) 3
(D) 4
Answer:
B.
Explanation:
1 orbital is 4 half of 4 is 2.
What are the lowest ratio of coefficients needed to balance the equation below? __ CaCl2 + __Al --> __AlCl3 + __Ca
How can you tell which elements form chemical bonds?
Answer: The number of bonds that an element can form is determined by the number of electrons in its valence shell. Similarly, the number of electrons in the valence shell also determines ion formation.
Explanation:
what is a catalyst?what is the catalyst used for manufacturing ammonia?
Answer:
finely divided iron is used as catalyst in the manufacture of ammonia by haber's process
Which statement best describes a source of new genetic variations in a species? A. Asexual reproduction produces many offspring with a successful set of genes.
B. Sexual reproduction results in offspring that each have a unique set of genes.
C. Lifelong leaming helps offspring with the same parents have different skills.
D. Limited resources cause some offspring to survive longer than others,
Answer:
B. Sexual reproduction results in offspring that each have a unique set of genes.
Explanation:
New genetic variation arises in a species as a result of sexual reproduction which results in offspring having a unique set of genes.
Genetic variation is the differences in the genetic make up of organisms within a population. During sexual reproduction, there is an exchange of materials between sexes and the new combination produces a varied form of the original genetic materials. The main source of genetic variation is mutation.Answer:
B
Explanation:
Which of the following minerals scratches
fluorite mineral?
a. talc
b. diamond
c. gypsum
d. calcite
Answer:
b. diamond
Explanation:
Diamond is the hardest known naturally occurring substance. And it will scratch any other minerals below it on the moh's scale of hardness.
Fluorite is below diamond in the scale of hardness and it will readily scratch it. Talc, is the softest mineral, it will not scratch fluoriteBoth gypsum and calcite also below fluorite. They will not scratch this mineral.2.911 grams of ethanol C2H5OH is burned and produces how many grams of water vapor?
Please help me or I'm dead.
Answer:
3.4g
Explanation:
Given parameters:
Mass of ethanol = 2.911g
Unknown:
Mass of water vapor = ?
Solution:
To solve this problem, let us write the balanced reaction equation first;
C₂H₅OH + 3O₂ → 2CO₂ + 3H₂O
Now find the number of moles of ethanol;
Number of moles = [tex]\frac{mass}{molar mass}[/tex]
Molar mass of ethanol = 2(12) + 5(1) + 16 + 1 = 46g/mol
Number of moles = [tex]\frac{2.911}{46}[/tex] = 0.06mole
So;
1 mole of ethanol will produce 3 moles of water vapor
0.06mole of ethanol will produce 0.06 x 3 = 0.19moles of water vapor
Mass of water vapor = number of moles x molar mass
Molar mass of H₂O = 2(1) + 16 = 18g/mol
Mass of water vapor = 0.19 x 18 = 3.4g
Melting chocolate (a change of state) is an example of a
For each pair of covalently bonded atoms, choose the one expected to have the shortest bond length.(A) C-C(B) C?C...... (A,B)(C) C?O(D) C-O...... (C,D)bondlengthtitle.gif The length of a covalent bond depends upon the size of the atoms and the bond order.For each pair of covalently bonded atoms, choose the one expected to have the shortest bond length.(A) P-Cl(B) Si-Cl...... (A,B)(C) P-I(D) H-I...... (C,D)bondlengthtitle.gif The length of a covalent bond depends upon the size of the atoms and the bond order.For each pair of covalently bonded atoms, choose the one expected to have the shortest bond length.(A) Cl-I(B) I-I...... (A,B)(C) P-Br(D) P-Cl...... (C,D)
Answer:
See explanation
Explanation:
In the section A,B
C triple bond O has a higher bond energy. A triple bond is shorter and more difficult to break hence they have a higher bond energy.
For the same reason in the C,D section; C triple bond N has a higher bond energy.
In the next section, the higher the bond order the shorter the bond. Hence C triple bond C is the shortest in the A,B section while C triple bond O is the shortest in the C,D section. Both have a bond order of 3.
In the A,B section; I is larger than Br hence H-Br has the shortest bond length.
In the C,D section; Br is larger than Cl hence P-Cl has the shortest bond length.
How are atoms combined in a mixture?
Answer:
Chemically combined and cannot be separated
Explanation:
1)A minimum of two atoms combine to form a molecule.
2)Atoms are combined via chemical reactions thus chemically combined. Sodium+Chlorine
e.g Na+Cl—>NaCl²
Which of the following would you get from playing too much tennis?
A. Cerebral Palsy
B. Muscular Dystrophy
C. Tendonitis
D. ALS
Answer:
cerebral palsy
Explanation:
POSS
Explain when gold is considered an element and when it is considered a solution.
Answer:
Gold is an element even when it is in a solution