Answer:
Climate change affects weather by causing longer droughts and higher temperatures in some regions and more intense deluges in others.
can someone help me pls
Answer:
The heat would flow from the hot solid to the cool solid until all temperatures are near equal.
True or False - Changing the temperature will not affect the pressure of the mixture?
Answer:
False
Explanation:
Let's break down the equation PV=nRT.
P=Pressure
V= Volume
n= number of mole
R= the universal constant
T= Temperature
The = sign is the barrier between them. Whenever one side of the equation increases, something on the other side is directly impacted. When Temperature increases, so will pressure--and vise versa.
write a covalent compound formed by nitrogen and oxygen. what is its Lewis structure
Answer:
Two covalent bonds form between the two oxygen atoms because oxygen requires two shared electrons to fill its outermost shell. Nitrogen atoms will form three covalent bonds (also called triple covalent) between two atoms of nitrogen because each nitrogen atom needs three electrons to fill its outermost shell.
the apparatus used to separate two missiscible liquids is
a.separatory funnle
b.condenser
c.filter funnle
d.filter paper
Answer:
a.separatory funnel
Explanation:
A mixture of immiscible liquids is separated by using an apparatus called separating funnel.
define "seperation by evaporation"
answer only if u know
have a great day
The equation shows the reaction between magnesium and chlorine to produce magnesium chloride.
Mg + Cl2 → MgCl2
Magnesium chloride consists of Mg2+ and Cl− ions.
Describe, in terms of electrons, how magnesium chloride is produced from magnesium and chlorine.
Answer: Mg is a cation and Cl is an anion
Explanation: In more detail, if you look at the periodic table, the group number (or columns) of the elements, describe how many valence electrons, or how many electrons the element has available to have a complete an electron shell. Magnesium being in group 2, it has one 2 electrons that will be "donated" to an anion that it bonds with. However, Chlorine being in group 17, (look at the single digit number for double digit groups), it has 7 valence electrons. Knowing that a full electron shell is usually 8 electrons, it needs only one. Since Magnesium has 2 valence electrons to give away, two atoms of Chlorine gas will then bind to the Magnesium, where the 2 Chlorine atoms will take the electrons to fill their shells. Magnesium Chloride, in terms of charges when in ions, [Mg]2+ and 2 [Cl]-1
Magnesium chloride is formed when magnesium ion formed from the loss of two electrons and two chloride ions formed by accepting one electron each are held together by electrostatic attractive forces.
How is magnesium chloride formed from magnesium and chlorine?Magnesium chloride is an ionic compound which consists of magnesium ions and chloride ions.
A Magnesium atom forms ion by giving up two electronsTwo Chlorine atoms become ions by accepting one electron each.The oppositely-charged ions are attracted to each other.Therefore, magnesium chloride is formed when magnesium ion formed from the loss of two electrons and two chloride ions formed by accepting one electron each are held together by electrostatic attractive forces.
Learn more about ionic compound at: https://brainly.com/question/13690700
Calculate the heat in kJ required to convert 2.1 g of water at 52.1°C to steam at 100°C. The specific heat of water is 4.184 J/g°C and the heat of vaporization of water is 2260 J/g.
Answer:
5.167 kJ
Explanation:
We have to divide the heating process into two steps: one for the heating process of liquid water (1) and the other for the phase transition from liquid water to steam at 100°C (2)
1 - heating from 52.1°C to 100°C:
heat(1) = m x Cp x ΔT = 2.1 g x 4.184 J/g°C x (100°C-52.1°C) = 420.9 J
2 - vaporization at 100°C:
heat(2) = m x ΔHv = 2.1 g x 2260 J/g = 4746 J
Finally, we add the heat values of the steps:
heat required = heat(1) + heat(2) = 420.9 J + 4746 J = 5166.9 J
Since 1 kJ= 1000 J, we convert from J to kJ:
5166.9 J x 1 kJ/1000 J = 5.1669 kJ ≅ 5.167 kJ
Explain why 6.02x10^23 particles of NaCl has a mass of 58.44 grams
Look at the image above, that should answer your question
Calcium and Gold (III) Bromide react. Will this reaction proceed?
If it does proceed, write the balanced chemical equation below.
20 A student draws the model shown below.
Sun
Earth
Which of these best compares the conditions at Location X and Location Y?
F It is day at Location X and night at Location Y.
GIt is winter at Location X and summer at Location Y.
H There are more hours of daylight at Location X than at Location Y.
1 The moon is brighter when viewed from Location X than when viewed from Location Y.
Answer:
There are more hours of daylight at Location X than at Location Y.
Explanation:
The student has created a model in the diagram in which sun and earth are presented. There are two point location on earth one is x and other is y. The x point is declined towards the sun which means that locations on point x receives more light than location Y. There will be more hours of daylight at Location x.
The best comparison of the conditions at Location X and Location Y is there are more hours of daylight at Location X than at Location Y.
What is the Sun and the Earth?The sun is the big spherical of heat and energy. The sun gives light. The Earth is the third planet of our solar system.
Thus, the correct option is C, There are more hours of daylight at Location X than at Location Y.
Learn more about Sun and the Earth
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which statement about the earth atmosphere is true
A.recent incease in carbon dioxide levels can contribute to a long--term cooling of eath's climate. B.a recent decrease in carbon dioxide levels will incease plant growth on eath.c.in the past few decades,carbon level has been rising.D.in the past few decades,carbon level has been falling
What is the formula for manganese (IV) bromide?
Answer:
MnO₂
Explanation:
Is adding manganese dioxide to hydrogen peroxide, a chemical or physical change?
Answer: chemical change as a new product is formed
Atmosphere pressure is about 100000 Pa. Calculate the force of the Atmosphere on a person whose Surface area is 2.0m
Answer:
The force of the atmosphere 200 KN.
Explanation:
Pressure is the ratio of force applied to the area to which the force is applied.
i.e Pressure = [tex]\frac{Force}{Area}[/tex]
But, Pressure = 100000 pa (100000 N/ [tex]m^{2}[/tex]), and surface area = 2.0 [tex]m^{2}[/tex]
Thus,
100000 = [tex]\frac{Force}{2.0}[/tex]
⇒ Force = 100000 x 2.0
= 200000
Force = 200 KN
The force of the atmosphere 200 KN.
An object should float in a liquid if it is
A. less dense than the liquid
B. more dense than the liquid C. shaped like a ball
The area of a rectangle can be found by multiplying its length by its width. What is the area of a rectangle that is 5.6 cm in length and 9.24 cm wide?
Report your answer with the correct number of significant figures.
Answer:
Area = 51.74cm ²
Explanation:
5.6 × 9.4 = 51.744
Round above answer
= 51.74
Help, please I’m very confused
Answer:
chemical is fire
and ductility is physical
Explanation:
give me brainliest please
What is meaning by O=O..in energy bond
Answer:
um that looks like a molecular bond, but in energy bond, that would be a solid form i guess, it looks like two of the same atoms are fused together to create a molecular bond.
Explanation:
Answer: bond pair of O-O bond to a greater extent than the lone pair of electrons on the sulfur atoms in S-S bond....as a result S-S bond (bond energy=213 kj/mole)is much more stronger than O-O(bond energy = 138 kj/mole) bond …
Explanation: pls answer my question from my profile.
PLEASE HELP ME SCIENCE I AM HORRIBLE AT HELPPPPP
Answer:
1. An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials. Groundwater can be extracted using a water well. The study of water flow in aquifers and the characterization of aquifers is called hydrogeology.
2. watershed
Simply put, a watershed is “all the land area where the rain runs downhill to a certain point,” explains Carolyn Staudt, who leads NSF-funded science projects at the Concord Consortium on land use and its effects on water resources.
3. Healthy watersheds provide critical services, such as clean drinking water, productive fisheries, and outdoor recreation, that support our economies, environment and quality of life
What is an aquifer : natural underground storage area
What is the name for the land area where all rain runs downhill to a certain point : collection? normally would be called watershed.
Why are watersheds important for the maintenance of water quality : 1, 2
what events are typically earthquakes near large bodies of water
Answer:
tsunamis
they are literally water earthquakes that force tons of water ashore and wipes out cities and towns
C3H8 +502 + 3CO2 + 4H2O
How many grams of CO2 will be produced from 7.00 g of C3H8 and 98.0 g of O2?
Answer:
Explanation:
first, you calculate the amount of O2 in moles:
98.0 ÷ 32 = 3.0625
second, the ratio if O2/C3H8 is 5 so you need to calculate O2 in moles with that:
3.0625 ÷ 5 = 0.6125
third, the amount of CO2 in moles also can be calculate by the ratio of C3H8/CO2 which is 3
0.6125 × 3 = 1.8375
then multiply CO2 in moles by its molar mass which is 44 g/mol
1.8375 × 44 = 80.85g
How many moles of tungsten carbide will be produced if plenty of tungsten is reacted with 1.25 moles of carbon?
Answer:
1.25 moles of tungsten carbide
Explanation:
Tungsten carbide, WC, is a substance that is produced prom carbon and tungsten as follows:
W + C → WC
Based on the reaction, 1 mole of Carbon produce 1 mole of tungsten carbide. That means if 1.25 moles of carbon are added in excess of tungsten, the moles of tungsten carbide produced are:
1.25 moles of tungsten carbide
A toy balloon has an internal pressure of 1.05 atm and a volume of 5.0 L. The temperature where the balloon is released is 250 C, as the balloon rises to an altitude where the pressure is
0.65 atm and the temperature is -150 C the volume will also increase. If this balloon has a
maximum capacity of 5 liters what will happen to the balloon? *
(5 Points)
The balloon will continue to rise upwards no matter what.
The balloon will burst before reaching maximum altituted
The balloon will fall back down to earth without popping.
Answer:
The balloon will burst before reaching maximum altituted
Why is light helpful? You can just give one reason
Answer:
to give off positive vibes <3
Explanation:
Which of the following is NOT a valid electron configuration?
1s22s22p62d9
[Ne]3s23p3
1s22s22p5
Answer:
there is no 2d so the first one is no good
the other 2 look good
Explanation:
What eventually happens to all the energy in a food web? The energy in a food web finally??????
Answer:
All of the consumers and producers eventually become nourishment for the decomposers.
Explanation:
Energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
True or False gases have indefinite shapes because gas molecules are constantly
changing their positions.
Answer:
True
Explanation:
Gases don't have any shape or form, so they could not be definite.
The temperature inside a diesel engine is high enough for two
atmospheric gases to react.
Name the pollutant formed.
Give the harmful effect of the pollutant.
Answer:
1) The temperature inside a diesel engine is high enough for two atmospheric gases nitrogen and oxygen to react and combine to form nitrogen oxides, NOₓ
At very high temperatures of above 1,300 °C, which are temperatures obtainable in the internal combusting chamber of a diesel engine under 100% load, air containing N₂ and O₂ is sucked in, and they combine to produce approximately 85% of the NOₓ pollutants produced from moving engine sources
2) a) N₂O contributes to the Greenhouse effect and therefore global warming
b) NO₂ contributes to the formation of smog and NO₂ combines with water to produce nitric acid which falls as acid rain, and causes irritation in the eyes and the respiratory system airways
c) Nitric oxide gas, NO, has the effect of depleting the Ozone layer which increases global warming and increased penetration of UVB
Explanation:
name the first artificially prepared fiber
. nylon
. rayon
. silk
. polymers
Answer:
Nylon
Explanation:
Nylon was the first synthetic fiber made in the "fully synthetic" sense of that term. It was made by Wallace Carothers, an American researcher at the chemical firm DuPont in the 1930s.
Given the following equation: 2NaClO3 --> 2NaCl + 3O2
If 178 g of NaCl are produced in this reaction, how many grams of O2 are also produced?