A sugar with 6 carbons is known as a: a. Pentose b. Hexose c. Heptose d. Octose

A separatory funnel contains ethyl acetate and some sort of aqueous solution. The bottom layer is made up of methylene chloride.

To learn more about methylene chloride, refer to:

brainly.com/question/13189086

#SPJ4

Answer:

pubchem

Explanation:

i know i'm in college

but you can look it up

Answer:

Low mass star phases

Explanation:

Helium fuses into carbon, the core of the star collapses. Once this happens, the outer layers become exhausted from the weight and this leads a planetary nebula to be formed from the outer layers. The core of the star remains a white dwarf for some time, but eventually it cools down and evolves to a black dwarf.

Answer:

A chemical formula tells us the number of atoms of each element in a compound.

Explanation:

Explanation:

formula shows

Answer:

I believe that would be a liquid.

Explanation:

For every mole of NaN3 that is broken down, one mole of N2(g) is produced. Using the molar mass of NaN3, which is 68.99 g/mol, we can determine how many moles of NaN3 are present given that we have 50.0 g of the substance.

We get 0.724 mol of NaN3 by dividing 50.0 g by 68.99 g/mol. We can determine that 0.724 mol of NaN3 will result in 0.724 mol of N2(g) since 1 mole of NaN3 yields 1 mole of N2(g). We may use the molar mass of N2(g), which is 28.02 g/mol, to determine the mass of N2(g) produced.

0.724 mol is multiplied by 28.02 g/mol to yield 20.3 g of N2(g). Therefore, 20.3 g of N2(g) will be created from 50.0 g of NaN3.

Learn more about  NaN3 at:

https://brainly.com/question/9809035

#SPJ1

Answer:

3.40x10¹⁰ grams

Explanation:

First we convert 5.25x10³² atoms to moles, using Avogadro's number:

5.25x10³² atoms ÷ 6.023x10²³ atoms/mol = 88.72x10⁸ mol

Then we convert K moles to grams, using its molar mass:

88.72x10⁸ mol * 39 g/mol = 3.40x10¹⁰ g

So 5.25x10³² atoms of K would weigh 3.40x10¹⁰ grams.

\(\\ \rm\longmapsto Distance=Speed(Time)\)

\(\\ \rm\longmapsto Distance=25(2700)\)

\(\\ \rm\longmapsto Distance=67500m\)

The object travelling at 25 m/s, will travel a distance of 67500 m in 45 mins.

1 min = 60 s

Therefore,

45 mins = 45 × 60

Time = 2700

Speed = 25 m/s

Distance = speed × time

Distance = 25 × 2700

Therefore, the object will cover a distance of 67500 m in 2700 s (i.e 45 mins)

Learn more: https://brainly.com/question/14988345

By analyzing morphological and molecular data, scientists try to identify genes and features that are similar.

Scientists attempt to locate comparable traits and genes using morphologic and molecular data. Homologies, or shared evolutionary history, can explain similarities between creatures, although divergent evolutionary routes can also explain similarities (analogies).

Fossils, radiometric dating, and a comparison of physical characteristics and genetics are the three methods scientists employ to determine the age of a species' origin.

Biologists frequently analyze the sequences of comparable genes found in other species (frequently referred to as homologous or orthologous genes) to determine how those species are linked to one another evolutionary terms.

To learn more about various characteristics of extinct and current animals, paleontologists use fossilized remnants. An organism's life and habitat may be revealed through a particular fossil.

To learn more about species refer to:

brainly.com/question/1532807

#SPJ1

Answer: If a reaction has a low rate that means the molecules combine at a slower speed than a reaction at a higher rate

Explanation:

The rate of a reaction for a chemical reaction is change in concentration of reactants or change in concentration of products per unit time.Rate of reaction depends on type and nature of reaction.It also depends onthe physical state of reactants, number of reactants and complexity of reaction.

The rate of reaction:

https://brainly.com/question/33610033?answering=false&answeringSource=feedQP

COBr2 is polar in nature and prefers to dissolve in polar solvents like water, ethanol, and methanol, among others, cobr2 is soluble in polar solvents.

To learn more about polar solvents refer to:

https://brainly.com/question/3184550

#SPJ4

Answer:

hey here is the answer to your question.

Explanation:

1) Write a balanced equation for the reaction occurring. (*Iron occurs in a few different oxidation states, but I will assume we're referring to Fe(II) or Fe2+)

Fe + CuSO4 -> Cu + FeSO4

2) Calculate the number of moles of each reactant.

Fe: 1.924 g * (1 mol / 55.85 g) = 0.03455 mol Fe

CuSO4: 0.1363 L * (0.0750 mol / 1 L) = 0.01022 mol CuSO4

3) Determine the limiting reactant. Because we have fewer moles of copper(II) sulfate and are reacting both reactants in a 1:1 ratio, we will run out of copper(II) sulfate first, making it the limiting reactant.

4) Convert moles of the limiting reactant to moles and grams of product of interest.

0.01022 CuSO4 (1 mol Cu / 1 mol CuSO4 ) (63.55 g Cu / 1 mol Cu) = 0.6495 g Cu

Answer:

Cold

Explanation:

Cold is not matter.

Answer:

3

Explanation:

cold is not matter it is the absence of heat within matter

If an atom has one valence electron, it is most likely to form an ionic bond with another atom. The atom that bonds to the atom with one valence electron might have either seven or eight valence electrons.

Ionic bonds occur when one atom transfers its valence electron to another atom. In this case, the atom with one valence electron will likely donate it to the other atom.

The atom that bonds to the atom with one valence electron might have either seven or eight valence electrons. This is because atoms tend to gain or lose electrons in order to achieve a stable electron configuration.

If the atom with one valence electron bonds with an atom that has seven valence electrons, the atom with one valence electron will donate its electron to the other atom, resulting in both atoms achieving a stable configuration.

If the atom with one valence electron bonds with an atom that has eight valence electrons, the atom with one valence electron will transfer its electron to the other atom, resulting in the atom with eight valence electrons achieving a stable configuration.

In both cases, the formation of an ionic bond between these atoms allows them to achieve a stable electron configuration.

Learn more about valence electron -

brainly.com/question/371590

#SPJ11

The temperature that the soup must reach in the next four hours to be cooled properly is 41°F (5°C).

Cooking large batches of food can be a tricky endeavor. It is important to ensure that all food is cooled properly to prevent foodborne illness. In this case, a food worker has safely cooled a large pot of soup to 70°F (21°C) within two hours.

To be cooled properly, the soup must reach a temperature of 41°F (5°C) in the next four hours. This temperature is critical, as it is the safe limit for storing perishable food.

If the temperature is not reached, the soup will not be safe for consumption and must be discarded.

To learn more about temperature , click here

https://brainly.com/question/11464844

SPJ4

Answer:

It would tend to lose two electrons and form a +2 ion. Potassium is in the first column and therefore has 1 electron in its outermost shell. It would tend to lose one electron and form a +1 ion.

A and B are both correct statements about the role of valence electrons in chemical reactivity. C is not correct - while filled valence sublevels do provide some stability, they do not necessarily give "exceptional stability" and are not always required for an atom or ion to be stable.

the role of valence electrons in chemical reactivity using the terms you've provided:

A. Valence electrons are indeed the electrons that participate in chemical reactions, as they are the farthest from the nucleus and thus more easily involved in bonding.

B. The number of valence electrons lost or gained to achieve a noble gas configuration determines the ions formed by main-group elements, which typically strive for stability.

C. Filled valence s and p sublevels do provide exceptional stability to atoms or ions, as they achieve a stable electron configuration similar to noble gases.

Find out more about valence electrons

brainly.com/question/30799882

#SPJ11

Proper cleaning is essential to remove contaminants and pathogens from tools and implements before disinfection. There are three methods for cleaning: manual cleaning, mechanical cleaning, and ultrasonic cleaning.

To effectively remove contaminants and pathogens from tools and implements, proper cleaning is crucial. There are three primary methods for cleaning surfaces: manual cleaning, mechanical cleaning, and ultrasonic cleaning.

1. Manual cleaning: This method involves physically scrubbing the tools or implements using brushes, sponges, or cloths. It is important to use an appropriate cleaning agent, such as soap or detergent, along with water to aid in the removal of dirt, debris, and microorganisms. The surfaces should be thoroughly rinsed after manual cleaning to remove any residual cleaning agents.

2. Mechanical cleaning: Mechanical cleaning involves the use of mechanical devices, such as automated washers or pressure washers, to clean tools and implements. These devices provide more efficient and consistent cleaning compared to manual methods. Mechanical cleaning is particularly useful for larger or more complex tools that are difficult to clean manually.

3. Ultrasonic cleaning: Ultrasonic cleaning utilizes high-frequency sound waves to generate microscopic bubbles in a cleaning solution. These bubbles create a scrubbing action that helps remove contaminants from the tools' surfaces. This method is effective for cleaning intricate or delicate tools, as it can reach crevices and small spaces that may be challenging to clean using other methods.

Regardless of the cleaning method used, it is essential to follow proper cleaning procedures and guidelines. Adequate cleaning ensures that contaminants and pathogens are removed, making the subsequent disinfection step more effective.

To learn more about disinfection refer:

https://brainly.com/question/29146800

#SPJ11

Answer: Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. ... The fire's heat causes molecules in the pan to vibrate faster, making it hotter. These vibrating molecules collide with their neighboring molecules, making them also vibrate faster.

HOPE THIS HELPS

Answer:

0.5 m

Explanation:

Answer:

Significant Figures in 200.0

Result 200.0

Sig Figs 4 (200.0)

Decimals 1 (200.0)

Scientific Notation 2.000 × 102

E-Notation 2.000e+2

Answer:

4.70 grams of NH4Cl is needed to prepare 350 mL of a 0.25 M ammonium chloride solution.

We need approximately 4.68 grams of NH4Cl to prepare a 0.25 M ammonium chloride solution with a volume of 350 mL.

To determine the mass of NH4Cl needed to prepare the solution, we us use the formula:

m=M x V x MM ... (i)

where,

m= mass in grams

M=molarity of solution

MM= molar mass of compound

V= volume in litres

The number of moles of NH4Cl needed can be calculated using:

  Moles = Molarity x Volume ...(ii)

  Moles = 0.25 mol/L x 0.350 L

  Moles = 0.0875 mol

Hence we can replace M x V with number of moles in equation i.

The molar mass of NH4Cl is :

  Molar mass of NH4Cl = (1 x 14.01 g/mol) + (4 x 1.01 g/mol) + (1 x 35.45 g/mol)

  Molar mass of NH4Cl = 53.49 g/mol

We have all the variables

Putting them in equation i.

Hence,

  Mass (g) = Moles x Molar mass

  Mass (g) = 0.0875 mol x 53.49 g/mol

  Mass (g) = 4.68 g

Therefore, you would need approximately 4.68 grams of NH4Cl to prepare a 0.25 M ammonium chloride solution with a volume of 350 mL.

To learn more about Stoichiometry,

https://brainly.com/question/16060223

Secondary consumers are organisms that primarily feed on herbivores or other primary consumers.

They occupy the next trophic level above the primary consumers in a food web. They obtain energy by consuming the primary consumers and play an important role in regulating the population of herbivores.

Examples of commonly observed secondary consumers include:

Carnivorous mammals: Animals such as wolves, lions, and tigers that feed on herbivores like deer, zebras, or gazelles.

Birds of prey: Species like eagles, hawks, and owls that consume small mammals, reptiles, or other birds.

Carnivorous fish: Fish like pike, barracuda, or bass that prey on smaller fish or aquatic invertebrates.

Predatory insects: Insects such as spiders, mantises, or dragonflies that feed on other insects, including herbivorous insects.

In a specific food web, the identification of secondary consumers would depend on the specific organisms present and their feeding interactions. It would be necessary to analyze the trophic relationships among the organisms in the food web to determine the secondary consumers accurately.

For more such questions on Secondary consumers visit:

https://brainly.com/question/28631974

#SPJ8

Answer:

3.07122*10^24 particles

Explanation:

To convert moles to particles, remember that a mole of something is defined as 6.022*10^23 atoms of that thing.

5.1 mol * 6.022x10^23/1 mol = 3.07122*10^24 particles

Answer:

1) The volume occupied by an atom is composed of mainly empty space

2) Atoms have a very small, relatively dense, central nucleus that is positively charged

3) The region around the nucleus of an atom are orbited by negatively charged electrons in a the same fashion planets orbit around the Sun.

Explanation:

The selection of gold for the gold foil experiment was due to its ability to be rolled into extremely thin sheets such that it was expected for alpha particle to perforate or pass through the foil.

Answer:

Mass of water == 1.71 g

Explanation:

Given data:

Initial temperature of water = 10°C

Final temperature of water = 50°C

Energy absorbed = 286 J

Mass of water = ?

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Specific heat capacity of water is 4.18 J/g.°C

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT =  50°C -  10°C

ΔT = 40°C

by putting  values,

286 J = m × 4.18 J/g.°C × 40°C

286 J = m × 167.2 J/g

m = 286 J / 167.2 J/g

m = 1.71 g