A stationary front forms when
Using two ______________ of wire wrapped around an _____________ core produces an ______________ voltage and an _______________ voltage.
Answer:
Using two coils of wire wrapped around an iron core produces an input voltage and output voltage.
Explanation:
How many grams of oxygen are present in 10g of H2 SO4?
*
14. An AREA which drains into a common river system.
watershed
tributary
drainage divide
riparian zone
Explain why there would be a need for lithium batteries?
Answer:
The much higher power density offered by lithium ion batteries is a distinct advantage. Electric vehicles also need a battery technology that has a high energy density. ... Lithium ion cells is that their rate of self-discharge is much lower than that of other rechargeable cells such as Ni-Cad and NiMH forms.
Put this into your own words or teachers will make you redo it
do earths plates meet at boundaries
Answer:
Earth's plates meet at BOUNDARIES. Breaks in the crust called FAULTS form where plates meet. ... Most TRANSFORM BOUNDARIES where plates move apart occur along the mid-ocean ridges.
Explanation:
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Why can more water vapor (water molecules that are in the gas state of matter) be present in warm air than in cold air?
Answer:
Because warm air is less dense
Explanation:
What happens when water is added to quicklime? Write two observations.
Answer:
1.Most metal oxides are insoluble in water but some of these (e.g. Na2O.
Explanation:
2.: (i) A hissing sound is observed.
1.ii) The mixture starts boiling and lime water is obtained.
How many joules are required to change 40 grams of water to steam at the boiling point?
Answer:
2260 J
Explanation:
For water at its boiling point of 100 ºC, the heat of vaporization is 2260 J g-1. This means that to convert 1 g of water at 100 ºC to 1 g of steam at 100 ºC, 2260 J of heat must be absorbed by the water.
Which of these molecules is polar?
A.
N2
B.
NaCl
C.
HF
D.
CH4
Answer:
C
Explanation:
.........................
17) What is the molarity
of a solution with
55 grams of CaCl2
dissolved in .78 L
of water?
a. 64M
b. 1.3 M
c. 171 M
d. 91 M
The molarity of a solution with 55 grams of CaCl2 dissolved in 0.78 L is 0.64M. Details about molarity is found below.
How to calculate molarity?The molarity of a solution can be calculated by dividing the number of moles of the substance by its volume.
However, the number of moles of a substance must first be calculated using the following expression:
no of moles = 55g ÷ 111g/mol
no of moles = 0.49mol
Molarity of CaCl2 solution = 0.49mol ÷ 0.78L
Molarity of CaCl2 solution = 0.64M
Therefore, the molarity of a solution with 55 grams of CaCl2 dissolved in 0.78 L is 0.64M.
Learn more about molarity at: https://brainly.com/question/2817451
A sample of aluminum has a density of 2.7g/cm3. the mass of the aluminum is 11g. what would be the volume of the aluminum sample?
A sample of aluminum has a density of 2.7g/cm³. The mass of the aluminum is 11g. What would be the volume of the aluminum sample ?
Answer:-Given:-Density of a sample of aluminium is 2.7g/cm³.
The mass of the aluminium is 11g.
To Find:-The volume of the aluminium sample.
Solution:-We know,
[tex] { \boxed{\bf{\rm \red {Volume \: = \frac{Mass}{Density}}}}} [/tex]
So, [tex] \bf Volume \: = \frac{11}{2.7} [/tex]
[tex] \bf Volume \: = \: 4.07 \: cm³ [/tex]The volume of the aluminium sample is 4.07 cm³. [Answer]Examine your observations above and summarize the effects of each kind of radiation on the molecules in the simulation. Microwave Infrared Visible Light Ultraviolet Effect(s) on Molecules
Answer:
The effects of each kind of radiation is different on the molecules.
Explanation:
Microwave causes molecules that have two opposing poles to spin rapidly due to absorption of the electromagnetic radiation waves. When molecules absorb Infrared radiation, changes occur from a ground vibrational state to an excited vibrational state. When the visible light is absorbed by molecule, the electron is excited and goes to an orbital of higher energy than the lower energy. Ultraviolet radiation turns the stable molecule into a reactive species.
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Antimony sulfide+hydrogen chloride—>
Answer:
Sb2S3 + 6HCl ⇆ 2SbCl3 + 3H2S
Explanation:
What is the overall equation for the covalent bond in H2O . Is it H2 + O2=H2O OR. H2 + O = H2O
Answer:
The answer is in the photo
Explanation:
I hope that is useful for you :)
Can anyone help me I just have to name these
Cr(HSO2)6
Au(HTeO3)3
Answer:
the first on is Chromium(VI) peroxide or chromium oxide peroxide
the second on it Hydrogen Carbonate
Explanation:
I hope this helped ;)
Sample A has a mass of 40g and a volume of 10cm^3. Sample B has a volume of 15cm^3 and a mass of 45g. Which sample has a greater density? Show your work.
The Answer Is Sample A
Density -
[tex]density = \frac{mass}{volume} [/tex]
Input The Formula For Both Equations To Find Density.
Sample A -
[tex]d = \frac{40}{10} [/tex]
[tex]d = 4[/tex]
Sample B -
[tex]d = \frac{45}{15} [/tex]
[tex]d = 3[/tex]
How does the CO2 level affect photosynthesis?
Answer:
Elevated [CO2] increases the availability of carbon in leaves causing greater Rubisco activity and higher rates of photosynthesis. Greater photosynthesis increases the content of non-structural carbohydrates in leaves which can lead to greater starch reserves and increased auxin biosynthesis.
Explanation:
Hope it helps
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What do you think? Is our current understanding ofthe Universe backed up with facts? Is it a good theory
Answer:
Yes
Explanation:
The expansion of the universe is the increase in distance between any two given gravitationally unbound parts of the observable universe with time. It is an intrinsic expansion whereby the scale of space itself changes. The universe does not expand "into" anything and does not require space to exist "outside" it.
Cuales son los símbolos para representar que una reacción se produce en presencia de;
a) electricidad
b) electrolitos
Answer:
b
Explanation:
In the reaction, Hydrogen + Iodine --> Hydrogen Iodide at equilibrium, some Iodine is is added. What happens to the equilibrium?
Answer:
the concentration of hydrogen iodide will be higher than it was in the original equilibrium conditions.
What is the wavelength of a photon with a frequency of 7.81 x 1014 Hz?
Explanation:
If you know the frequency of the photon, you can calculate the wavelength using the equation λ=cν where c is the speed of light and ν is the frequency.
λ=cν
f=T^-1,f=1/7.81×1014s
c=3×10^8m/s
λ=3×10^8m/s×1/7.81.×1014s
λ=37881.94m
are the smallest units of life. A. Bugs B. Eggs C. Bones D. Cells
Help mee please!!
What must happen to break a chemical bond?
Energy must be released.
Electrons must be provided.
Energy must be provided.
Answer:
Energy must be provided
Explanation:
Chemical bonds are initially stable, energy is required to break them apart.
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Answer:
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A sample of gas as a volume of 425 mL at 25°C at and 760 tour what volume with this gas sample have at STP
Answer:
[tex]\Rightarrow V_2 = 389mL[/tex]
Explanation:
To solve this question, we could use Charles' law since both the number of mole and pressure are constant
At STP pressure P = 760 tor and Temperature = 273K
V1 =425mL, T1 =298K and T2 =273K
and [tex]\frac{V_1}{T_1} =\frac{V_2}{T_2}[/tex]
[tex]\Rightarrow V_2 =T_2\times\frac{V_1}{T_1}[/tex]
[tex]\Rightarrow V_2 =273\times\frac{425}{298}[/tex]
Therefore, [tex]\Rightarrow V_2 = 389mL[/tex]
A natural levee is _____.
A. an erosional feature that causes additional sediment to enter the river
B. a depositional elongated ridge formed by moving water that runs parallel to a stream channel
C. an elongated ridge designed by engineers that runs parallel to a stream channel
D. the result of wind erosion
Answer:
Option C, an elongated ridge designed by engineers that runs parallel to a stream channel
Explanation:
A natural or artificial levee is basically a ridge constructed along a river bank to regulate the water level in the stream.
It run along the river embankment and hence can be said that it runs parallel to the river length
Hence, option C is correct
what are protons, what is their charge, and where they located?
What is an example of a microorganism acting in a harmful way?
Answer:
bacteria spoiling food
hope this helps
have a good day :)
Explanation: