Answer:
D
Explanation:
If the deer leave the forest then they are avoiding compotation
Consider the two triangles shown below.
Note: The triangles are not drawn to scale.
Triangles may be regarded as similar or congruent on the following basis;
1) Side angle side (SAS)
2) Side side side (SSS)
3) Angle Angle side (AAS)
What is a triangle?A triangle is a three sided figure. The figures are not shown here. However, two triangle may be regarded as similar or congruent by the following conditions;
1) Side angle side (SAS)
2) Side side side (SSS)
3) Angle Angle side (AAS)
Since the triagles are not shown here, the similarity of the triangles can not be established.
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what is double displacement reaction
Answer:
A salt metathesis reaction, sometimes called a double displacement reaction, is a chemical process involving the exchange of bonds between two reacting chemical species which results in the creation of products with similar or identical bonding affiliations.
Explanation:
From: Wikipedia
How do mechanical and chemical weathering relate to the formation of soil?
Answer:
Mechanical weathering breaks rocks into smaller pieces without changing their composition. … Chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface. Water, carbon dioxide, and oxygen are important agents of chemical weathering.
Explanation:
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Answer:
Mechanical weathering reduces the size of rocks without altering their content.
Chemical weathering damages rocks by creating new materials that are stable on earth's surface.
When people talk about the phrase “blood sugar,” they really mean?
Answer:
Specific chemical sugar glucose
Explanation:
When we say “blood sugar,” we mean the specific chemical sugar glucose. Diabetes is all about glucose. There lots of sugars….table sugar is sucrose, malt sugar is maltose, milk sugar is lactose, and you’ve probably heard of fructose.
Blood sugar, or glucose, is the main sugar found in your blood. It comes from the food you eat, and is your body's main source of energy. Your blood carries glucose to all of your body's cells to use for energy.
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ASAP HELP
The troposphere revives most of its heat energy from the blank
32. 2 g of ethyl alcohol is dissolved in water to make a 0. 50 L
solution. What is the molarity of the solution?
Answer:
Well, by definition,
molarity = moles of solute
volume of solution
Explanation:
Now the moles of solute are a constant. The volume of solution MAY change substantially with increasing or decreasing temperature. In some calculations molality is used in preference, which is defined by the quotien
Hope this helps!
Round the mmHg readings to the nearest whole number. Round the kPa readings to the nearest tenth. Round the atm readings to the nearest hundredth. Convert a pressure of 2.76324 kPa to _____ torr
Given the pressure in KPa, the value of the pressure reading in torr obtained is 20.73 torr
Conversion scale101.325 KPa = 760 torr
Data obtained from the question Pressure (KPa) = 2.76324 KPa Pressure (torr) =? How to determine the pressure in torrThe value of the pressure in torr can be obtained as illustrated below:
101.325 KPa = 760 torr
Therefore,
2.76324 KPa = (2.76324 × 760) / 101.325
2.76324 KPa = 20.73 torr
Thus, 2.76324 KPa is equivalent to 20.73 torr
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Using the simulation, how can you show that it takes more energy to convert a liquid to a gas than a solid to a liquid?
Answer:
The enthalpy of vaporization of a given substance is much greater than its enthalpy of fusion because it takes more energy to completely separate molecules (c
A 60-g sample of radioactive isotope is measured after two half-lives have passed. What pair of percentages describes the sample after two half-lives?.
Answer:
25% is left 15 gm
Explanation:
(1/2)^2 = 25%
Answer:
b. 25% unchanged and 75% stable
Explanation:
got it right on edge
476 nm = [? ]10
cm
give your answer in scientific notation.
1nm=10^-6 cm.
476 nm = 4.76E-5 cm
How many molecules are in 37 grams of H2O
Answer:
2.053812097286304 mol
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Modern non-stick cookware and the flat end of an electric iron has a coating of a polymer. Identify the name of the polymer.
A. PVC
B. Rayon
C. Teflon
D. Polyester
Answer:
Teflon
Explanation:
Teflon is a very good polymerIt is known for its nonstick behavior .So it's used in cookwares to cook food and in irons also
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When a cracker is ignited, a sudden reaction takes place with the evolution of heat, light and sound. Identify the type of combustion?
A. Random combustion
B. Rapid combustion
C. Spontaneous combustion
D. Explosion
D. explosion
When a cracker is lit, a rapid response results in the development of large amount of energy of heat, light, and sound. Explosion is the term for such a reaction.
Answer:
D. Explosion
Explanation:
Here, we want to identify the type of combustion characterized by the given properties
From what we have, there is a sudden reaction that takes place as the cracker is ignited
The type of combustion here is called Explosion
It takes place suddenly with the evolution of light, heat, and sound upon ignition.
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Issue like gay marriage, abortion, and education have caused debate over the constitution because of the issue of what? (Hint: federalism)
Is mixing baking soda and vegetable oil a chemical change or physical change and WHY? PLEASE HELP
Answer:
chemical change i think
Explanation:
As the drops of vinegar fall through the oil to the bottom of the bottle, it reacts with the baking soda to make carbon dioxide gas. These bubbles attach themselves to the colored vinegar and cause them to float to the surface. When the bubbles pop, the color sinks back to the bottom of the bottle.
the states of matter involved in a milkshake
Answer:
it is a liquid that is made from the combination of a liquid and a solid.
Explanation:
When these two states of matter are ground and mixed together, they form one state that is liquid
Answer:
Solid and liquid
Explanation:
Solid= ice cream or ice
Liquid= milk
these are common things used in a milkshake
A group of students observed a sample of soil and recorded their observations.
reddish-brown color
don’t need a magnifying glass to see grains
gritty when dry
sticks to my fingers when wet
doesn’t smell like anything
dries quickly
does not get foamy with vinegar
damp soil made a ball but it fell apart quickly
What type of soil did the students observe? Use evidence from the students’ observations to support your answer.
Based on the observations of the students, the soil they observed appears to be a sandy soil.
What is Foamy?
Foamy refers to the presence of bubbles or foam in a liquid or substance. It can be caused by a variety of factors, such as agitation, the presence of certain chemicals, or the release of gases. In the context of the soil observation mentioned earlier, the lack of foamy reaction with vinegar suggests that the soil does not contain a significant amount of carbonates, which are a common cause of foaming when they react with acids.
Evidence to support this includes the fact that the soil is gritty when dry and sticks to their fingers when wet, which are both common characteristics of sandy soil. Additionally, the observation that the soil does not get foamy with vinegar suggests that it does not contain a lot of organic matter, which is another characteristic of sandy soil. Finally, the fact that the damp soil made a ball but it fell apart quickly suggests that the soil does not have a lot of clay, which is another characteristic of sandy soil.
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N2 (g) + 3H2 (g) ⇔ 2NH3 (g) + Energy
Complete the table below by filling in "right" or "left" for the equilibrium shift and "increases" or "decreases" for the concentration of reactants and products.
Answer:
b is the answer
What chemical property determines the strength of an acid?.
What will your grade be if you have an 80 and you got a 68 on your unit test
Answer:
Its would be a very low C or a high D
Explanation:
Depending on what your teacher says or if you only got part of a question wrong it would be a very low C or a high D.
a.
Which of the following correctly describes the composition of an electromagnetic wave?
a transverse electric wave and a magnetic C. a transverse electric wave and a magnetic
transverse wave that are parallel and are
transverse wave that are parallel and are
moving in the same direction
moving at right angles to each other
b. a transverse electric wave and a magnetic d. a transverse electric wave and a magnetic
transverse wave that are perpendicular and are transverse wave that are perpendicular and are
moving in the same direction
moving at right angles to each other
Answer:
a transverse electric wave and a magnetic transverse wave that are perpendicular and are moving in the same direction.
Explanation:
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The molar mass of sucrose (c12h22o11) is 342.3 g/mol. a chemist has a 0.500-mol sample of sucrose. what is the mass, in grams, of this sample? 171 grams 342 grams 500 grams 684 grams
Mass is the measure of the quantity of the substance present in the sample containing a compound or molecule. The mass of sucrose in the sample is 171 g.
What is mass?The mass of the compound in the sample is the product of the number of moles of the substance and the molar mass of the compound.
Given,
The molar mass of the sucrose compound = 342.3 g/mol
Number of moles of sucrose = 0.500 moles
Mass of sucrose is calculated as:
[tex]\begin{aligned}\rm mass &= \rm moles \times molar \; mass\\\\&= 0.500 \;\rm moles \times 342.3 \;\rm g/mol\\\\&= 171.15 \;\rm gm\end{aligned}[/tex]
Therefore, option A. 171 gm is the mass of sucrose.
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The correct answer is option A: 171 grams
Explanation: Got 90% on the quiz on edge and got this answer right
Can you dissolve. 35 moles of potassium permanganate (kmno4) into 500 ml of water? _________ why? / why not?
Yes, we can dissolve 35 moles of KMnO₄ into 500 mL of water to give a molarity of 70 M
What is molarity?Molarity is defined as the mole of solute per unit litre of solution. Mathematically, it can be expressed as:
Molarity = mole / Volume
How to determine the molarity Mole of KMnO₄ = 35 moles Volume = 500 mL = 500 / 1000 = 0.5 L Molarity =?Molarity = mole / Volume
Molarity = 35 / 0.5
Molarity = 70 M
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We can not dissolve 35 moles of potassium permanganate into 500 ml of water as it produces the solution with higher molarity than water have.
What is molarity?Molarity of any solution is define as the number of moles of solute present in per liter of the solvent as:
M = n/V
The molarity of the solvent, water, is the highest for aqueous solutions and molarity of 1000g of pure water in 1 liter is 55.5M
Given that,
n = moles of potassium permanganate = 35 molesV = Volume = 500 mL = 500 / 1000 = 0.5 LOn putting values, we get
M = 35/0.5 = 70M
Preparation of this solution is impossible.
Hence, KMnO₄ will not dissolve in the water as it produces solution with higher molarity than water.
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what is The relationship between a carnivore and an herbivore can be stated as
A
parasite and host
B
predator and prey
C
prey and predator
D
scavenger and parasite
What color should appear when a properly cleaned nichrome wire is introduced into the flame?.
Answer: The color that will appear when the nichrome wire is properly cleaned and introduced into flame would be orange
You see color when light waves are reflected off an object or ____ by an object
Answer:
absorbed
Explanation:
Different colors of light can be reflected or absorbed and that determines color. For instance an object that absorbs every color but green will appear green to the human eye.
8
Atomic #?
Atomic mass?
# of neutrons?
O
Oxygen
15.999
Answer:
eight because I think it's eight
What is the effect on the total pressure inside a closed vessel if... a) More gas is added? b) The container's volume is increased?
(a) When more gas is added, the number of moles of the gas increases, and the total pressure of gas inside same vessel will increase.
(b) When the conatiner's volume is increased, the total pressure of gas inside the vessel will decrease.
Ideal gas lawThe ideal gas law of general gas equation, can be used to describe the behavior of an ideal gas.
The ideal gas law is given as;
PV = nRT
where;
P is pressure of the gasV is the volume of the gasn is the number of gas molesR is ideal gas constantT is temperature of the gasWhen more gas is added, the number of moles of the gas increases, and the total pressure of gas inside same vessel will increase.
When the conatiner's volume is increased, the total pressure of gas inside the vessel will decrease.
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Calcite (the main mineral in limestone) is made of calcium carbonate (caco3). dolomite, a related mineral, is made of magnesium carbonate (mgco3). what happens if a geologist drips a small amount of vinegar (acetic acid) onto a sample of dolomite? there is no way to predict what will happen. fizzing will occur because carbon dioxide is produced. no reaction will occur because dolomite contains no calcium.
If a geologist drips a small amount of vinegar (acetic acid) onto a sample of dolomite, fizzing will occur because carbon dioxide is produced.
Why Carbon dioxide show effervescence?Effervescence observes whenever any gas tried to escape out from an aqueous solution, that's why CO₂ show effervescence.
Reaction between dolomite and acetic acid will be represented as:
MgCO₃ + 2CH₃COOH → CO₂ + H₂O + Mg(CH₃COO)₂
From the above reaction it is clear that carbon dixide gas is produced by showing the effervescence and fizzing behavior.
Hence, option (2) is correct.
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Answer:
B
Explanation:
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why is solar energy a viable alternative energy resource?
Solar energy is a viable alternative energy resource due to its high usage application.
Why is solar energy a viable alternative energy resource?The solar energy is considered as a viable alternative energy resource because this energy can used in the form of electricity for operating all electrical devices present in our homes.
So we can conclude that solar energy is a viable alternative energy resource due to its high usage application.
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Answer:
It has an endless supply is the answer.