Flammability (how something burns) is an example of
Answers
Answer:
Chemical Property Examples
For example: Flammability - How easily something will burn or ignite, is a chemical property because you can't tell just by looking at something how easily it will burn. Fire testing is done to determine how difficult or easy it will be to get a certain material to burn.
Explanation:
Related Questions
as the temperature of a gas decreases is volume
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Answer:
it's volume also decrease
practical work inside a laboratory and outside a laboratory (difference between)
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The main difference between practical work inside a laboratory and outside a laboratory is the level of control that the experimenter has over the environment.
What differentiates work inside and outside a laboratory ?By conducting experiments in a controlled laboratory setting, the researcher has the ability to regulate various atmospheric conditions, such as temperature and humidity, thereby crucially contributing to the precision of the findings. It can be challenging to achieve precise outcomes when conducting experiments in non-laboratory settings due to the limited control over the surroundings.
The presence of specialized equipment sets apart practical work conducted within a laboratory from those performed outside. There is typically a vast selection of specialized equipment readily accessible in a laboratory, which can prove highly beneficial when conducting experimental procedures.
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Which factor plays the biggest role in delaying the detection of childhood
diseases?
Answers
Answer:
poor access to health care providers
Explanation:
without health care providers you cant get tested.
Between the green skinned lime and the yellow skinned lime, which of these are more acidic.
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3. SE7.12D The cell organelle responsible for providing energy for cell processes in plant
and animal cells is the -
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Kevin solved 324 divided by 3 by breaking the expression into simpler numbers
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To solve the problem 324 divided by 3, Kevin broke the expression into simpler numbers. Therefore, breaking down 324 into simpler numbers, we have 324 divided by 3 equals 108.
Here's a step-by-step explanation:
1. Kevin started by breaking 324 into smaller parts: (300 + 24) divided by 3.
2. Next, Kevin divided each part by 3 separately: (300 ÷ 3) + (24 ÷ 3).
3. Kevin calculated the first part: 300 ÷ 3 = 100.
4. Then, he calculated the second part: 24 ÷ 3 = 8.
5. Finally, Kevin added the two results together: 100 + 8 = 108.
So, Kevin found that 324 divided by 3 is 108 by breaking the expression into simpler numbers.
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What is a simple definition of pressure?
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Pressure can be defined as the force applied per unit area on a surface.
It is a measure of how much force is exerted on an area of a surface. The SI unit for pressure is the Pascal (Pa), which is equivalent to one Newton (N) of force per square meter (m²) of area.
In simpler terms, pressure is the amount of force applied to a surface divided by the area of that surface. The greater the force applied to a surface, the greater the pressure; and the larger the surface area, the lower the pressure.
Pressure is an important concept in science and engineering, and is used in a variety of applications, such as measuring atmospheric pressure, hydraulic pressure, and blood pressure.
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Which statement describes the components of a mixture?
1.
Each component gains new properties.
2.
Each component loses its original properties.
3.
The proportions of components can vary.
4.
The proportions of components cannot vary.
Answer: 3
Answers
Answer: The proportions of components can vary.
Explanation:
A mixture is a combination that has to do with two or more substances. Some characteristics or properties of mixtures are that the substances that are added together retain their properties.
Also, the proportion of the components can vary and the components can be separated.
Therefore, the answer to the question will be option 3 "The proportions of components can vary".
HELP PLZZZZ GIVE BRAINLIST PLEZZ HELP!!!!!!!!!!!
I'll give 20 points
Suppose you make your living fishing for lobster. You and everyone else are free to set out as many traps as you like. As more and more traps are set up, however, fewer and fewer lobsters are caught. Soon, lobster catches are too small to support your families. A meeting is coming up where you and your fellow lobster fishers will present possible solutions to this problem. What will you propose to combat this tragedy of the commons and restore the fishery?
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Explanation and Answer:
This is an opinion based question and there could be many different responses these are just examples of solution to restore the fishery:
-limiting the season during which lobsters can be caught this allows the population to reproduce itself gradually but maintaining it in control
-limiting the amount of lobster that can be caught therefore again letting the population increase
Because electrons are orbiting the nucleus, the nucleus is stationary
true or false
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Answer:
false, The nucleus of atoms still move around like crazy, it's just the electrons move more.
Any shipment of peanuts that contains more than 25 ppb of this dangerous fungus is rejected. A company receives 24 t of peanuts to make peanut butter. What is the maximum mass, in g, of fungus that is allowed? Hint 1 t = 1000 kg.
Answers
Answer:
0.60g of the fungus can be allowed
Explanation:
The maximum concentration of the fungus that can be allowed is 25 ppb, that is 25mg/t.
As the peanuts are 24t, the mass of fungus that can be allowed is:
24t * (25mg/t) = 600mg of the fungus can be allowed. In grams are:
600mg * (1g/1000mg) =
0.60g of the fungus can be allowedAnswer:
0.5g of toxin
Explanation:
ppb = mass of solute/ mass of solution x 10^9
ppb = mass of fungus/ mass of peanuts x 10^9
25ppb = (x/2 x 10^7g) x 10^9
x = (25)(2 x 10^7g)/ 10^9
x = 0.5g of toxin
x represented the unknown mass of solute (fungus), in which we solved for. We already knew we were using the ppb formula, which is mass of solute/ mass of solution x 10^9, because the question mentions that there are 25ppb of peanuts in the shipments. In the calculations, you can see that I substituted the mass of peanuts with 2 x 10^7g. I did this because the question mentions that there are 20t of peanuts and since each t = 1000kg, I multiped 20 x 1000 to get 20 000kg. In my formula for ppb, I know that I have to use grams of solution, not kilograms. Knowing this, we follow the formula for ppb and substitute our known values and solving for unknown values.
is calcium a metal? yes or no answer please
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valence bond theory predicts that iodine will use _____ hybrid orbitals in icl2–.
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Valence bond theory predicts that iodine will use sp3 hybrid orbitals in ICl2-. This is because ICl2- has a trigonal bipyramidal shape, which requires four hybrid orbitals to form the four bonding pairs of electrons around the central iodine atom.
The remaining two lone pairs of electrons occupy the two remaining p orbitals on iodine. The hybridization of the iodine atom occurs because it allows for the formation of strong covalent bonds between the iodine and chlorine atoms. Hybrid orbitals are formed by the combination of atomic orbitals from the same atom, and they have different shapes and energies than the original atomic orbitals.
Valence Bond Theory predicts that iodine will use sp3 hybrid orbitals in ICl2-. In this molecule, iodine is the central atom and forms two single bonds with the two chlorine atoms. Additionally, there are two lone pairs of electrons on the iodine atom. The formation of four effective pairs (two bonds and two lone pairs) requires the hybridization of one s orbital and three p orbitals, resulting in sp3 hybrid orbitals. The molecule's overall geometry is V-shaped or bent due to the repulsion between the electron pairs.
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help me get this right no links
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I think you forgot to upload the image. Create a new question including the image so that we can see the question.
Please help me answer this it’s due today. I will give brainliest
Answers
Answer: X should represent H, hydrogen.
Explanation:
The H is the only one that hasnt been stated in the left side of the formula. H has three atoms as well.
Human blood types are determined by genes that follow the codominance pattern of inheritance. There are two dominant alleles (A & B) and one recessive allele (O). What is the chance of having children with blood group AB for a couple with the husband of heterozygous A (AO) and the wife of heterozygous B (BO). 25%, 50%, 75%, or 100%.
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The chance of having children with blood group AB for a couple with the husband of heterozygous A (AO) and the wife of heterozygous B (BO) is 25%. The correct option is A.
What is blood grouping?The antigens of the ABO blood group are encoded by a single genetic locus, the ABO locus, which has three alternative (allelic) forms A, B, and O.
A child inherits one of the three alleles from each parent, resulting in six genotypes and four blood types.
Blood groups are inherited. They follow a Mendelian pattern, which means they are the result of a single gene.
There are three types of alleles in the ABO gene: A, B, and O. The first two, A and B, are codominant, which means they are equally dominant.
As per the attached Punnett Square, the genotype can be AB, AO, BO, and OO. So, the chance of having children with blood group AB as per the given scenario, will be 25%.
Thus, the correct option is A.
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13. In Singapore, the legal limit for the concentration of alcohol (ethanol, C,H,OH) in the blood is 80 mg in 100 cm³ of blood. Complete the table by calculating the concentration of alcohol in mol dm-3 in a person at various states of intoxication. You may assume that 1 dm³ of blood contains 1 dm³ of water.
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The concentrations in mol/dm³ would be 0.002, 0.04, 0.007, and 0.01 respectively.
Concentration in mol/dm3Since 1 dm³ of blood is taken as containing 1 dm³ of water, it means that the concentration levels are in mg/dm³.
Thus, we are tasked with the job of converting from mg/dm³ to mol/dm³.
Recall that: mole = mass in grams/molar mass in gram/mole
Molar mass of ethanol = 46.07 g/mol
80 mg of ethanol = 0.08 g = 0.08/46.07 = 0.002 mol
200 mg of ethanol = 0.2 g - 0.2/46.07 = 0.004 mol
300 mg = 0.3 g = 0.3/46.07 = 0.007 mol
500 mg = 0.5 g = 0.5/46.07 = 0.01 mol
Therefore, the respective concentrations in mol/dm³ would be 0.002, 0.04, 0.007, and 0.01 respectively.
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Câu 1: Trình bày phương pháp hóa học nhận biết
a. 3 dung dịch: HCl , Na2SO4 , NaCl.
b. 3 dung dịch:NaOH , NA2CO3 , NaCl.
c. 4 dung dịch:HCl , H2SO4 , NaCl , Na2SO4.
Viết phương trình phản ứng xảy ra (nếu có)
Answers
Answer:
c
Explanation:
beacause Câu 1: Trình bày phương pháp hóa học nhận biết
what is luster? what is luster? an indication that a mineral has double refraction a mineral's ability to transmit light through itself the color of a mineral in powdered form the color of a mineral the quality of light reflected from a mineral's surface
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Luster refers to the quality of light reflected from a mineral's surface. It is an important characteristic in the identification of minerals and is used to describe the appearance of a mineral in terms of its shine or gleam.
The luster of a mineral can range from metallic to dull, and can be described as vitreous (glassy), adamantine (diamond-like), pearly, silky, and others. The luster of a mineral depends on the way light interacts with the surface and internal structures of the mineral, and can provide clues about the mineral's composition and internal crystal structure. For example, metallic minerals typically have a high luster and reflect light like a mirror, while minerals with a dull or earthy luster typically have a more porous or rough surface. The luster of a mineral can also be influenced by its color, texture, and other physical properties.
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Calculate the Ph of a solution that is 0. 01 m in HCl and 0. 02 m in picric acid (ka = 0. 43).
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The Ph of a solution that is 0. 01 m in HCl and 0. 02 m in picric acid (ka = 0. 43 is 1.475.
pH is a degree of how acidic/simple water is. The range goes from 0 - 14, with 7 being neutral. pH of much less than 7 imply acidity, whereas a pH of greater than 7 suggests a base. pH is clearly a measure of the relative amount of loose hydrogen and hydroxyl ions within the water.
Since both HCl and picric acid are strong acid, thus [H+] can be determined as:
[H+] = \(\frac{M1V1 +M2V2}{V1 + V2}\)
= \(\frac{(0.012M * 1L )+(0.0550M * 1L}{(1 +1)L}\)
= 0.0335 M
Determination of pH of the solution:
pH = -log[H+]
= -log[0.0335]
= 1.475
Hence, the pH of the solution is 1.475.
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In clinical applications, the unit parts per million (ppm) is used to express very small concentrations of solute, where 1 ppm is equivalent to 1 mg of solute per 1 L of solution. Calculate the concentration in parts per million for each of the solutions.There is 43 μg of calcium in a total volume of 87 mL .concentration of calcium: _________ppm There is 0.91 mg of caffeine in a total volume of 105 mL .concentration of caffeine: _________ppm There is 0.47 mg of trace particles in a total volume of 95 dL .concentration of trace particles: ___________
Answers
Answer & Procedure
To solve this problem you will need to transform all the concentrations to the equivalence of ppm, which is 1 mg of solute per 1 L of solution.
Calcium: There are 43 μg of calcium in a total volume of 87 mL.
\(\frac{43\mu g}{87\text{ mL}}\frac{1\text{ mg}}{1000\text{ }\mu g}\frac{1000\text{ mL}}{1\text{ L}}=0.49\frac{mg}{L}=0.49\text{ ppm}\)Caffeine: There is 0.91 mg of caffeine in a total volume of 105 mL.
\(\frac{0.91\text{ mg}}{105\text{ mL}}\frac{1000\text{ mL}}{1\text{ L}}=8.67\frac{mg}{L}=\text{ 8.67 ppm}\)Trace particles: There is 0.47 mg of trace particles in a total volume of 95 dL.
\(\frac{0.47\text{ mg}}{95\text{ dL}}\frac{10\text{ dL}}{1\text{ L}}=0.049\frac{mg}{L}=0.049\text{ ppm}\)which of the following protects a computer system from electrostatic discharge
Answers
The option that provides protection against electrostatic discharge for a computer system is D. Anti-static wrist strap.
An anti-static wrist strap is designed to safely ground the user and prevent the buildup and discharge of static electricity, which can damage sensitive computer components. When working on a computer system, wearing an anti-static wrist strap ensures that any static charges on the body are safely dissipated to a grounded surface, preventing potential damage to the electronic components.
Static shielding bags (option A) are used for storing and transporting sensitive electronic components to protect them from electrostatic discharge. Power supply testers (option B) are used to check the functionality of a power supply unit. POST cards (option C) are diagnostic tools used to troubleshoot computer booting issues. While these options have their own uses, they do not directly address protection against electrostatic discharge like the anti-static wrist strap does.
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the complete question is:
Which option provides protection against electrostatic discharge for a computer system?
A. Static shielding bag
B. Power supply tester
C. POST card
D. Anti-static wrist strap
What will the final temperature of the a block of brass with a mass of 30.6 g is at 87.4°C
after it's added to 62.3 g of water at 28.3°C. The specific heat of aluminum is 0.380
J/gºC.
Answers
The final temperature of the block of brass with a mass of 30.6 g at 87.4°C is 30.82°C.
SPECIFIC HEAT CAPACITY:
The amount of heat absorbed or released by a substance can be calculated using the following formula:Q = m × c × ∆TQ(water) = - Q(metal)(m × c × ∆T) water = - (m × c × ∆T) metalAccording to this question;
METAL:
m = 30.6gc = 0.380 J/g°C∆T = T - 87.4°CWATER:
m = 62.3gc = 4.184J/g°C∆T = T - 28.3°C62.3 × 4.184 × (T - 28.3) = - {30.6 × 0.380 × (T - 87.4)}260.7T - 7376.8 = - {11.63T - 1016.3}260.7T - 7376.8 = -11.63T + 1016.3260.7T + 11.63T = 1016.3 + 7376.8272.33T = 8393.1T = 8393.1 ÷ 272.33T = 30.82°CTherefore, the final temperature of the block of brass with a mass of 30.6 g at 87.4°C is 30.82°C.Learn more at: https://brainly.com/question/11194034?referrer=searchResults
chemistry moles PLEASE HELP!! A package of foil weighs 360g. How many moles of aluminium are there in this package??
Answers
Answer:
I am not 100% sure but I think it is 26.981538
Explanation:
100 POINTS PLS HELP
Which of the following are part of the equation to calculate the percent yield? Select all that apply.
A actual yield
B limiting reactant
C theoretical yield
D excess reactant
Answers
Answer:
Actual yield and theoretical yield
How many grams of H20 are created from 1.3 liters of H2?
Answers
I am very very sorry for sharing 4t so please can u send me the same question again
Which substance cannot be decomposed by a chemical change?
a. copper
b. mercury(ii) oxide
c. potassium chlorate
d. water
Answers
Copper substance cannot be decomposed by a chemical change.
When heated, the copper to carbonate breaks down into copper to oxide. The copper carbonate, which is dark in colour, releases carbon dioxide as well.Because they are the simplest chemically, elements cannot be broken down by chemical processes.Elements are those pure compounds that cannot be broken down by reactions, heating, electrolysis, or other common chemical processes. Examples of elements are oxygen, gold, and silver. Its makeup stays the same, though. One instance of a physical change is melting. A physical change is when a sample of matter experiences a change in some of its qualities but not in its identity. Water turns into water vapour when it is heated.
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How many grams are there in 3.3 x 1023 molecules of N2I6?
Answers
Answer:
The number of grams is 434.5 g.
Explanation:
Use dimensional analysis to solve the following problem .a)the estimated fuel efficency of dr meyer's old car is 11km per liter.how many gallon of gasoline are needed for dr meyer to drive the 48km distance between salem and portland
Answers
Gallon of gasoline are needed for dr meyer to drive the 48km distance between salem and portland is 1.151 gallon.
What is Dimensional Analysis?We can study the nature of an object mathematically.It include lengths and angles and also geometrical properties like flatness and straightness. The basic concept of dimension is such that we can add and subtract quantities having same dimensions only.Now,
According to the given question,
Fuel efficiency of dr. meyer's old car is 11km per liter.
According to dimensional analysis,
11 km = 1 liter
1 km = 1/11 liter
48km = 48/11 liter
= 4.36 liter
Now,
We know that,
1 liter = 0.264 gallon
Hence,
4.36 liter = 1.151 gallon
Thus, from the above conclusion we can say that, Gallon of gasoline are needed for dr meyer to drive the 48km distance between salem and portland is 1.151 gallon.
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Jennifer checked the pressure in her bike tires before school and they had a pressure of 0. 890 atm. She checked the tire pressure again after school and they had a pressure of 1. 01 atm. Why was there an increase in pressure? Check all that apply. The temperature increased outside. The temperature decreased outside. The air molecules in the tire moved around more rapidly later in the day and collided with the tire walls with more force. There was a hole in the tire.
Answers
Answer:
A and C
Explanation: Don't worry, I gotchu