Answer:
A
Explanation:
it is A because all of the other ones are opinions.
Answer:
A
Explanation:
The predicted tidal range along an East Coast shoreline is feet. How much should a fisherman expect the tide to rise during the first hour?
A.2 feet
B.1 foot
C.0.5 feet
D 0.8 feet
Answer:
b. 1foot
Explanation:
im not that sure but hope this helps !! happy holidays!!
Which transformations in the rock cycle require heat? Select all that apply.
Igneous rock to metamorphic rock
Metamorphic rock to sedimentary rock
Metamorphic rock to igneous rock
Sedimentary rock to metamorphic rock
Igneous rock to sedimentary rock
Answer:
Igneous rock to metamorphic rock
Metamorphic rock to igneous rock
Sedimentary rock to metamorphic rock
Explanation:
In changing a rock through the listed processes heat is highly required.
Transformation from a rock to igneous rocks requires the most heat because the rock body must be molten.
Igneous rock to metamorphic rock is a metamorphic change that requires significant heat and pressure. The mineralogical fabric is affected by this change. In moving from metamorphic to igneous rock, the melting temperature of a rock must be attained in order for magma to form. Sedimentary changes to metamorphic rocks also require heat.A gas us a pressure of 800 kPa at 327 degree C. What will be its pressure at 27 degree C, if the volume does not change?
A. 400 kPa
B. 1,600 kPa
C. 668 kPa
D. 958 kPa
Answer:
Ooo gas laws! fun! the answer is B, 1600 kPa
Explanation:
Here are some key things to remember:
- to convert Celsius to Kelvin add 273
- we are using the equation [tex]P1 x T1 = P2 x T2[/tex] our given variables:P1=800kPa T1= 327 + 273 = 600 KP2= ? (decrease)T2= 27+ 273 = 300 K- rearrange our equation and plug in the numbers to solve.[tex]P2= \frac{P1 x T1}{T2}[/tex][tex]800 kPa = \frac{600 K}{300 K}[/tex]- Our Kelvin cancels out so that leaves us with the measurment of kPa. When the numbers are solved out, you get 1600 kPaWhich statement best explains how electrons form a covalent bond in a molecule?
A.
A pair of electrons splits so that each atom gets one electron.
B.
A pair of electrons belongs to two atoms at the same time.
C.
A pair of electrons is transferred from one atom to another atom.
D.
A pair of electrons moves from a lower energy level to a higher energy level.
E.
A pair of electrons drifts freely from one molecule to another.
two workers used a force of 100 N to move a sofa 4 meters in 2 seconds how much power
Answer:
200 watts
Explanation:
First we have to find total work:
W =F(d)
W = 400J
Then plug that answer into the Power formula.
P = W/(t_f-t-i)
P = 400/2s
P = 200 W
Is silver a metal or non-metal
Answer:
metal
Explanation:
whats the answer giving brainliest :))))
Answer:
D
Explanation:
Because B and C are talking about the climate. And A is just saying something general about the climate! :)
Answer:
d
Explanation:
In the above picture a solid aluminium rod is being heated by a flame. Explain the main reason why Glob
of wax A melts first.
TE from the candle moves through the air and Glob A feels the heat first
TE from the candle transfers particle to particle by touch through the rod to the wax
TE from the candle is carried by particles as they flow though the rod to the wax.
TE travels up as heat rises to the wax
Answer:
TE from the candle is carried by particles as they flow though the rod to the wax.
Explanation:
HELP!!!!!! 20 POINTS
step 2 on the performance task thing.
C) Judge the closeness of your trend line to the data points. Do you notice a relationship between the data points? (2 points)
D) Is the trend line linear? If so, write a linear equation that represents the trend line. Show your work.
I believe that the answer is C
A(n)
is a group of organs that work together to perform a cormmon function.
cell
tissue
organ
organ system
When carbon is completely combusted in the presence of oxygen the only product produced is carbon dioxide as shown in the following equation, C+O2——>CO2 If 12 grams of carbon are burned, how many grams of carbon dioxide will be produced?
Answer:
C.44g is that one okkkkkkkkkkkkkkkk
Whats the answer marking brainliest :-)
Answer:
A
Explanation:
hope this helps you have a good day
Need help with this.
Answer:
18.2 g.
Explanation:
You need to first figure out how many moles of nitrogen gas and hydrogen (gas) you have. To do this, use the molar masses of nitrogen gas and hydrogen (gas) on the periodic table. You get the following:
0.535 g. N2 and 1.984 g. H2
Then find out which reactant is the limiting one. In this case, it's N2. The amount of ammonia, then, that would be produced is 2 times the amount of moles of N2. This gives you 1.07 mol, approximately. Then multiply this by the molar mass of ammonia to find your answer of 18.2 g.
How does kinetic energy relate to particles and the states of matter?
Help??
Answer:
The kinetic molecular theory of matter states that: Matter is made up of particles that are constantly moving. Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy. The temperature of a substance is a measure of the average kinetic energy of the particles.
Explanation:
Hope this helps. Happy Holidays!!!!
Which sentence is a scientific statement?
A.
There is a substance around us that cannot be detected.
B.
Kids should go to school for 12 years.
C.
Experimentation is the best way to obtain knowledge.
D.
Unicorns once existed on Earth.
E.
There are no living things on the Moon.
B. Kids should go to school for 12 years.
What is a scientific statement?Scientific statements are those statements that must be falsifiable which means that able to be proven false while on the other hand, tautology is a statement that is true. The sun revolves around the earth” is an example of scientific statement because this statement can be falsifiable in the light of evidences and researches. Hypothesis is a statement that may be true or false. We can verify it by doing experiments.
So we can conclude that option B is the sentence that represents a scientific statement.
Learn more about scientific here: https://brainly.com/question/17216882
#SPJ1
What is the formula of the compound vanadium(V) oxide? Use the list of polyatomic ions and the periodic table to help you answer.
A.
VO2
B.
VO5
C.
V5O2
D.
V2O5
E.
V2O2
Answer:
d
Explanation:
Answer:
D. V2O5
Plato Userssssss
Thermal energy always transfers from a Fill in the blank text field 1 Type your answer here. object to a Fill in the blank text field 2 Type your answer here. object. The transfer of this energy, called heat, is measured in Fill in the blank text field 3 Type your answer here. .
Explanation:
Thermal energy is the transfer of energy from one object to another as a result of difference in their temperature. The direction of the transfer is from a hot body (higher temperature) to a cold body (lower temperature).
The transfer of this type of energy called heat is measured in joules,
What is the electron structure of sodium?
Answer:
2,8,1
Explanation: This is the number of electrons sodium has on each electron shell
he amount of sun that an area receives affects the movement of water through the water cycle, which is illustrated below.
water cycle diagram
Which of the following processes in the water cycle is most directly caused by water absorbing energy from the sun?
Group of answer choices
precipitation
condensation
evaporation
runoff
Answer:
evaporation
Explanation:
The process of evaporation is as a result of water absorbing energy from the sun.
The process is a phase change in which liquid water changes into gaseous form.
The water in gaseous form is called vaporThis water cools and condenses in the atmosphere as it loses the energy it has gained. For evaporation to take place, water must absorb energy from the sun or other heating bodies. This will then cause vaporization of the liquid water into a gaseous form.6. A solution of CuSO4 is electrolyzed for 10 minutes with a current of 1.5 amperes. What is the mass of copper deposited at the cathode? ( F =96,500C,Charge of Cu in CuSO4 = +2)
The mass of Copper deposited at the cathode : 0.296 g
Further explanationGiven
time = t = 10 min=600 s
current = i = 1.5 A
F = 96500 C
charge Cu=+2
Required
The mass of Copper
Solution
Faraday's Law
[tex]\tt W=\dfrac{e.i.t}{96500}[/tex]
e = Ar/valence(valence Cu=2, Ar=63.5 g/mol)
Input the value :
[tex]\tt W=\dfrac{63.5/2\times 1.5\times 600}{96500}\\\\W=0.296~g[/tex]
(20 POINTS!!) please help me write a short reference page on chemical bonds (anything helps)
•differentiate the characteristics of ionic and covalent bonds
•summarize the steps and rules for naming IONIC and COVALENT bonds
•describe the role an elements charge has in writing and naming bonds
- how do roman numerals change the process of naming ionic compounds
have a good day :)
Explanation:An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms. The only pure covalent bonds occur between identical atoms. ... Ionic bonds form between a metal and a nonmetal. Covalent bonds form between two nonmetals.
AS Of Jahuary 2009, the USA has produced 60,000 metric tons of nuclear waste in 60 years of operating 104
nuclear power plants.
On average, how much waste is produced by each plant on a monthly basis?
O0.8tons per month
O83.3 tons per month
104 tons per month
O 866.3 tons per month
Waste produced by each plant : 0.8 tons per month
Further explanationGiven
60,000 metric tons of nuclear waste in 60 years of operating 104
nuclear power plants.
Required
Waste produced
Solution
60,000 metric tons=60 years, so in one year :
[tex]\tt \dfrac{60,000}{60}=1000~metric~tons[/tex]
1000 metric tons/year = 83.33 metric tons/month
For each plant :
[tex]\tt \dfrac{83.33}{104}=0.8[/tex]
Answer:
A. 0.8 tons per month
Explanation:
Edge 2020
Three quantum numbers are derived from Schrodinger’s equation that describe the probability of finding an electron around a nucleus: the principal quantum number, the angular momentum quantum number, and the magnetic quantum number. Explain each quantum number, including associated shapes, numbers, letters and values.
(please help)
Answer:
Principal Quantum Number (n) = energy level (1s2)
Angular Momentum Quantum Number (l) = sub-shell (1s2)
Magnetic Quantum Number (mi) = specific orbital electron occupies
range of (n) = 1-7
range of (I) = s, p, d , f
Explanation:
Answer:
Principal Quantum Number: designates the principal electron shell. Angular Momentum Quantum Number-This quantum number determines it's shape of an orbital and thus it's angular distribution. This quantum number determines the number of orbital numbers, their orientation within the sub-shell.
Principal Quantum Number, n
It describes the size of its orbital and of the main energy level. It is represented by n. Where, n = 1,2,3,4....stands for K, L, M, N shell and so on..
ngular Momentum Quantum Number l
It describes the shape of the orbital and thus the angular distribution. It can take from 0 to (n - 1). That is l = 0,1,2,...,(n - 1)
The magnetic Quantum Number, m
It describes the orientation of the orbitals. It is represented as . The value of this quantum number ranges from . When l = 2, the value of will be -2, -1, 0, +1, +2.
Explanation:
For the reaction Halg) + 12/8) = 2HI(g), K = 50.2 at 445°C. If
[H2] - [62] - [HI] = 1.75 x 10 Mat 445°C, which of the
following is true based on the above?
Qc
equilibrium
Qc - Kc, the reaction is currently at equilibrium
Qc > Kc, the reaction proceeds from left to right to reach
equilibrium
QC > Ke the reaction proceeds from right to left to reach
equilibrium
C) Qc < Kc, the reaction proceeds from left to right to reach equilibrium
Further explanationGiven
K = 50.2 at 445°C
[H2] = [I2] = [HI] = 1.75 × 10⁻³ M At 445ºC
Reaction
H2(g) + I2(g) ⇔2HI(g)
Required
Qc
Solution
Qc for the reaction
[tex]\tt Qc=\dfrac{[HI]^2}{[H_2][I_2]}\\\\Qc=\dfrac{(1.75.10^{-3})^2}{1.75.10^{-3}\times 1.7\times 10^{-3}}=1[/tex]
Qc < Kc ⇒ reaction from left(reactants) to right (products) (the reaction will shift on the right) until it reaches equilibrium (Qc = Kc)
How many grams of barium hydroxide are required to dissolve in 156 g of water to make a 0.247 m solution?
Molar mass of Ba(OH)2: 171.346
Explanation:
Moles of Barium hydroxide = 0.156dm³ * (0.247mol/dm³) = 0.0385mol.
Mass of Barium hydroxide = 0.0385mol * (171.346g/mol) = 6.60g.
Answer:
6.60
Explanation:
Which of the following is a physical change:
a. turning solid sodium to and chlorine gas to salt
b. forming a mixture
c. food turning into waste in the intestines
d.burning wood
Find the volume of oxygen with a density of 0.001331 g/ml that has a mass of 250.0 g.
Answer:
187,828.7 mLExplanation:
The volume of a substance when given the density and mass can be found by using the formula
[tex]volume = \frac{mass}{density} \\[/tex]
From the question we have
[tex]volume = \frac{250}{0.001331} \\ = 187828.70025...[/tex]
We have the final answer as
187,828.7 mLHope this helps you
If the grass contains 220,000 kcal of energy, who much energy will be available to the owl?
Answer:
Generally, consumers only receive 10% of the energy from what they eat. So, if the grass had 220,000 kcal of energy, then the cow would receive 10% of that - 200kcal. And then when a human eats the cow, it will only receive 10% of the cow's energy. This is because within a food chain, energy is lost as organisms use their energy to survive - like moving and producing heat (if endothermic). So consumers do not get 100% of their food's energy. Hope this helps a little.
Explanation:
Is the following compound an alcohol, aldehyde, or organic acid?
C-C=0
Answer:
Explain both aldehydes and ketones, the geometry around the carbon atom in the carbonyl group is trigon planar; the carbon atom exhibits sp2 hybridization. Two of the sp2 orbitals on the carbon atom in the carbonyl group are used to form σ bonds to the other carbon or hydrogen atoms in a molecule. The remaining sp2 hybrid orbital forms a σ bond to the oxygen atom. The hybridized p orbital on the carbon atom in the carbonyl group overlaps a p orbital on the oxygen atom to form the π bond in the double bond.ation .
The table below shows the elements that mainly comprise each of the four layers of Earth:
Elements in Layers
Layer Main Elements
Crust Oxygen, Silicon
Mantle Iron, Magnesium
Outer Core Iron, Nickel
Inner Core Iron
Which of these elements make up the layer that is 0.2 to 1.1 percent of Earth's total diameter?
Magnesium and Silicon
Iron and Magnesium
Iron and Nickel
Oxygen and Silicon
Answer:
The answer is oxygen and silicon
Explanation:
I took the test and it was right
The answer is oxygen and silicon