This is the question!!!

The correct pairing of formula and type of crystalline solid is D. SiO2, ionic solid.

The type of crystalline solid is determined by the bonding between the atoms or molecules that make up the solid. SiO2 is an ionic compound, composed of silicon and oxygen ions held together by ionic bonds. Ionic solids are characterized by high melting and boiling points, as well as high hardness and brittleness. Cl2 and CO2 are both molecular compounds, meaning they are composed of covalently bonded molecules held together by weak intermolecular forces. CaBr2 is an ionic compound, but it is composed of molecular ions rather than individual atoms. However, the bonding between these ions is still considered ionic, making SiO2 the only correct pairing.

SiO2 is correctly paired with the type of crystalline solid as ionic solid, making it the correct answer among the given options.

To know more about crystalline solid visit:

brainly.com/question/28274778

#SPJ11

Answer:

The hollow ball is more buoyant than the solid ball.

Explanation:

The hollow ball will float while the solid ball sinks because the volume of water displaced by the hollow ball is more than that displaced by the solid ball.

An object floats when it displaces a volume of water equal to its weight.  A solid ball is more compact, and hence, does not displace a lot of water when dropped into a bowl full of water. On the other hand, the hollow ball will have a larger curved surface area, since it has no fill. This will make it displace a larger volume of water and hence make it float.

Answer: Equilibrium

Explanation:

The reactions which do not go on completion and in which the reactant forms product and the products goes back to the reactants simultaneously are known as equilibrium reactions.

For a chemical equilibrium reaction, equilibrium state is achieved when the rate of forward reaction becomes equals to rate of the backward reaction which means the products are being made as quickly as reactants

Equilibrium state is the state when reactants and products are present but the concentrations does not change with time.

Answer:

monke

Explanation:

because my mum told me we are all monke

Answer:

B

Explanation:

Answer:

Energy Level (Principal Quantum Number)   Shell Letter   Electron Capacity

                             3                                         M                    18

                             4                                         N                    32

                             5                                         O                    50

                              6                                          P                    72

Explanation:

Answer: this might have something to do with the pancreas

Explanation:

the pancreas produces insulin if subject a produces more insulin than subject b the reaction to the glucose will be different the pancreas breaks down the glucose into sugar and protiens hope this helps

The strongest acid among the given options is Option E) HCl (hydrochloric acid).

Acids are substances that release hydrogen ions (H+) in aqueous solution. The strength of an acid is determined by its ability to donate H+ ions. The more H+ ions an acid can donate, the stronger it is.

Among the given options, HCl is the strongest acid because it completely dissociates in water to form H+ and Cl- ions. This means that it has a high tendency to donate H+ ions and is therefore a strong acid. The other options, PH3, H2S, HBr, and H2O, are all weaker acids than HCl.

Therefore, the correct answer is E) HCl.

To know more about strength of acids, refer here:

https://brainly.com/question/3223615#

#SPJ11

Answer

C. 259 K

Explanation

Given:

Temperature = -14°C

What to find:

The temperature in kelvins of -14°C.

Solution:

Conversion factor: 0°C + 273 = 273 K

Therefore, 14°C + 273 = 259 K

The temperature in kelvins of -14°C is 259 K

Answer:

there would be chemicals on the food.

Explanation: Hope this helps :)

The stoichiometry of the reaction shows that the mass of the precipitate is 7.15 g.

We know that the amount of the precipitate that is formed would depend on the stoichiometry of the reaction. This is why we have to set up  the balanced reaction equation as follows;

\(AgNO_{3} (aq) + NaCl(aq) ----- > AgCl(s) + NaNO_{3} (aq)\)

Number of moles of sliver nitrate = concentration * volume

= 50/1000 L * 1 M

= 0.05 moles

Number of moles of sodium chloride = 50/1000 L * 1 M

= 0.05 moles

Since the reaction is 1:1,  the amount of the precipitate is;

0.05 moles * 143 g/mol

= 7.15 g

Learn more about stoichiometry:https://brainly.com/question/9743981

#SPJ1

Answer:

For the first one I think it is:

2)Cell 5)tissue 3)organ 1)organism 4)body/organ system

I also think the second question is B

The overall molecular dipole moment of 1,1-dichloro-2-methylprop-1-ene can be determined using a vector arrow. The molecule consists of a double bond between carbon atoms 1 and 2, with a chlorine atom attached to each carbon atom.

The methyl group is attached to carbon atom 2. To identify the dipole moment, we need to consider the individual bond dipoles and the molecular geometry. The C-Cl bonds have a polar covalent nature, with chlorine being more electronegative than carbon. Therefore, each C-Cl bond has a dipole moment pointing towards the chlorine atom. Since both carbon atoms have C-Cl bonds, these dipoles cancel out, resulting in no net dipole moment along the carbon-carbon axis.

The methyl group is also polar, with the carbon being more electronegative than the hydrogen atoms. However, the dipole moment of the methyl group is not canceled out by the other bonds in the molecule. Therefore, the net dipole moment of 1,1-dichloro-2-methylprop-1-ene is directed towards the methyl group. In summary, the molecule has an overall dipole moment pointing towards the methyl group. This can be represented using a vector arrow pointing in that direction.

To know more about molecular  visit:

https://brainly.com/question/30640129

#SPJ11

Based on the ABG results provided, the nurse can determine that the client has developed respiratory alkalosis. This is indicated by the elevated pH of 7.5 and the decreased PaCO2 of 32. Respiratory alkalosis occurs when there is a hyperventilation that causes the carbon dioxide level in the blood to decrease, leading to an increase in pH.

The HCO3 level of 23 is within normal range, indicating that metabolic compensation has not occurred yet. Possible causes of respiratory alkalosis include anxiety, pain, fever, hypoxia, or overuse of mechanical ventilation.

The nurse should identify the underlying cause and provide appropriate interventions to correct the acid-base imbalance and prevent further complications. These may include reducing anxiety, providing supplemental oxygen, or adjusting mechanical ventilation settings.

Close monitoring of the client's ABG results is essential to ensure effective management of their condition.
Based on the provided ABG results (pH-7.5, PaCO2 32, HCO3 23), the nurse can determine that the client has developed respiratory alkalosis. This is because the pH level is above the normal range of 7.35-7.45, indicating alkalosis, while the PaCO2 level is below the normal range of 35-45 mmHg, suggesting a respiratory cause. The HCO3 level remains within the normal range of 22-26 mEq/L, which further supports that the primary issue is respiratory rather than metabolic.

To know more about ABG results. please visit.....

brainly.com/question/30867802

#SPJ11

15 grams of iron can be recovered from 25.0g of Fe2O3.

To solve this question, the first step is to determine the molar mass of Fe2O3
Fe: 2 x 55.85 g/mol = 111.7 g/molO: 3 x 16.00 g/mol = 48.00 g/mol
Total molar mass of Fe2O3 = 159.7 g/mol
The next step is to find the moles of Fe2O3 that are present in 25.0g
moles = mass / molar mass
moles = 25.0 g / 159.7 g/mol
moles = 0.1564 mol

Finally, using the balanced chemical equation for the reaction of Fe2O3 with carbon monoxide (CO), we can determine the theoretical yield of iron
Fe2O3 + 3CO → 2Fe + 3CO21 mol
Fe2O3 produces 2 mol FeSo,
0.1564 mol Fe2O3 produces (2/1 x 0.1564 mol) = 0.3128 mol Fe
The molar mass of Fe is 55.85 g/mol, so the mass of iron that can be recovered is
mass = moles x molar mass
mass = 0.3128 mol x 55.85 g/mol
mass = 17.46 g
The actual yield may be less than the theoretical yield due to various factors, such as the efficiency of the reaction. Assuming a 85% yield, the amount of iron that can be recovered is
recovered mass = theoretical yield x % yield
recovered mass = 17.46 g x 85%
recovered mass = 14.8 g

Therefore, the main answer to this question is that 15 grams of iron can be recovered from 25.0g of Fe2O3.

To know more about molar mass, click here

https://brainly.com/question/31545539

#SPJ11

to activate metabolic processes that wouldn't happen on their own; to move chemicals across membranes that are necessary; and to do mechanical activity, like moving muscles.

Acetylation. A relatively frequent metabolic process that involves amino, hydroxyl, or sulfhydryl groups is acetylation. Acetyltransferases catalyze the process by transferring the acetyl group from acetyl-coenzyme A.

Anabolic and catabolic responses are the two different categories of metabolic processes. Protein synthesis in living things and the synthesis of carbohydrates in plants are examples of anabolic responses. Cellular respiration and glycolysis are examples of catabolic processes that occur in several species.

To know more about metabolic reaction visit:

https://brainly.com/question/29824802

#SPJ1

(a) The elements in period 2 whose atoms have three empty 2p orbitals are carbon (C) and nitrogen (N).

(b) The metals in period 3 that have at least one unpaired electron are sodium (Na), magnesium (Mg), aluminum (Al), and all the transition metals from scandium (Sc) to copper (Cu).

(c) There are no alkaline earth metals that have filled 3d sublevels. The alkaline earth metals are the elements in group 2 of the periodic table, and their atoms have filled 4s sublevels.

(d) The halogens that have unpaired 4p electrons are chlorine (Cl) and bromine (Br). Iodine (I) has unpaired 5p electrons and a filled 4p sublevel.

The symbols of elements are abbreviations used to represent the chemical elements. They consist of one or two letters, with the first letter capitalized and the second letter, if present, in lowercase. The symbols are used in the periodic table of elements and in chemical equations to represent the elements and their reactions.

For example, the symbol for hydrogen is H, the symbol for oxygen is O, and the symbol for carbon is C. The symbols are based on the name of the element, often derived from Latin or Greek, or sometimes from the name of a scientist who discovered or studied the element.

To learn more about symbols of elements, here

https://brainly.com/question/14678810

#SPJ4

Answer:.

Explanation:

The molarity of the solution containing 6.7 grams of Li2O in 3500 ml was found to be 0.064 M.

To calculate the molarity of the solution, we need to first convert the volume of the solution from milliliters to liters. 3500 ml = 3.5 L.

Then, we need to calculate the number of moles of Li2O present in the solution. The molar mass of Li2O is 29.88 g/mol. So, 6.7 g of Li2O is equal to 0.224 moles.

Finally, we can calculate the molarity using the formula: Molarity = moles of solute / liters of solution.

Therefore, the molarity of the solution is 0.064 M (0.224 moles / 3.5 L).

The molarity of a solution is a measure of the number of moles of solute per liter of solution. To calculate the molarity of the given solution, we first converted the volume from milliliters to liters. Then, we determined the number of moles of Li2O present in the solution by using the molar mass of Li2O. Finally, we applied the formula to calculate the molarity of the solution. The molarity of the solution was found to be 0.064 M.

The molarity of a solution can be determined by calculating the number of moles of solute present in the solution and dividing it by the volume of the solution in liters. In this case, the molarity of the solution containing 6.7 grams of Li2O in 3500 ml was found to be 0.064 M.

To know more about molarity visit:

brainly.com/question/31545539

#SPJ11

The standard free energy change for the triose phosphate isomerase reaction is 7.9 kJ/mol, while the actual free energy change of the reaction is 4.4 kJ/mol.

To determine which of the two products of the reaction is at a higher concentration in the cell, we need to consider the concept of equilibrium. In a chemical reaction, the equilibrium point is reached when the rate of the forward reaction is equal to the rate of the reverse reaction. At this point, the concentrations of the reactants and products remain constant over time.

Regarding whether the reaction will proceed under normal cellular conditions, we need to consider factors such as temperature, pressure, and the presence of enzymes. Since the reaction has a negative ΔG and is exergonic, it has the potential to proceed under normal cellular conditions. However, it's important to note that the reaction rate can also be influenced by other factors, such as the concentration of reactants and the presence of enzymes that catalyze the reaction.

To know more about triose phosphate visit :-

https://brainly.com/question/32230410

#SPJ11

A chemical reaction wherein two molecules combine to form one larger product is called a condensation reaction.

The process of joining two or more atoms or molecules to form a single product is known as a chemical reaction. These reactions can be divided into two categories: combination and decomposition reactions.

During the process of condensation reaction a small molecule is eliminated as a byproduct, such as water or alcohol.

The condensation reaction can be utilized to create a variety of polymers by joining smaller monomers together into more complex molecules.

This reaction can be utilized to create peptide bonds between amino acids in proteins, ester bonds between carboxylic acids and alcohols, and glycosidic bonds between sugars, for example.

In addition to the condensation reaction, there are other types of chemical reactions.

For example, Hydrolysis, decomposition, single displacement, double displacement, acid-base, redox, and oxidation reactions are all examples of different types of chemical reactions.

In summary, a chemical reaction wherein two molecules combine to form one larger product is called a condensation reaction.

This process is used to create a variety of polymers by joining smaller monomers together into more complex molecules.

For more such questions on condensation reaction

https://brainly.com/question/1361341

#SPJ8

The formula for molariy is nomber of moles/volume

0.5=n/1=>n=0.5 moles

one mole contains 6.023*10^23 molecules

so 0.5 contain 3.0115*10^23 molecules

Answer:

In a bottle.

Explanation:

I would like soda in a bottle because you don't get soda stuck in the aluminum can like you do a bottle. And it's also way more efficient because bottles have caps that you can screw on later, but aluminum doesn't.

True. The rationale for adopting a raw vegan diet is indeed based on the belief that uncooked, plant-based foods that are never heated above 115 degrees Fahrenheit (46 degrees Celsius) are the most healthful for the body.

Followers of the raw vegan diet believe that cooking foods above this temperature can lead to nutrient loss, as heat can potentially destroy enzymes, vitamins, and other beneficial components present in the food. They argue that consuming raw foods in their natural state provides maximum nutritional value and promotes overall health and vitality.

However, it's important to note that the scientific consensus on the benefits and drawbacks of raw vegan diets is not conclusive, and individual dietary needs may vary. It's recommended to consult with a healthcare professional or registered dietitian before making significant changes to one's diet.

To learn more about  fahrenheit click here:

brainly.com/question/5074701

#SPJ11

Answer: 1.34 M

Explanation:

When diluting a strong acid with water, it is recommended to add the acid to the water and not the other way around. The statement is true.

This is because adding water to the acid can cause a rapid and exothermic reaction, leading to splattering and potential injury.

When the acid is added to the water, the heat generated is absorbed by the water, reducing the potential for splattering. Additionally, adding the acid to water allows for better mixing and reduces the risk of creating concentrated acid pockets that can be dangerous.

Overall, it is important to follow safe laboratory practices when working with acids and to consult with a trained professional if you are unsure about the proper procedures.

To know more about the dilution, here

brainly.com/question/28392867

#SPJ4

Pepper moth's dark color suits for the dart surroundings of night and it helps them to hide from their predators. The white peppered moth undergone extinction because the industrial revolution, made their white shelters dark.

The peppered moth, like many insects, can advantage from blending into its surroundings. This implies that the colors of the bird should complement the trees on which it rests. What would happen then if the trees started to change and the peppered moths lost their ability to fit in?

It could adjust in a variety of ways to these changes. The people might move (to try to find trees that match its color). In addition, the species may have changed over time to adapt to its new environment.

The light moths were blended with light trees. However, the industrial revolution changed the scenarios. It made the tree color dark, where the light moths can be easily catched by their predators. Whereas, the population dark moths increased.

To find more on pepper moths, refer here:

https://brainly.com/question/3384078

#SPJ1

Answer:

dont know

Explanation:

During chemistry class, carl performed several lab tests on two white solids. The results of three tests are seen in the data table. Based on this data, carl has concluded that substance b must have ionic bonds.

The complete transfer of certain electrons from one atom to another results in the formation of an ionic connection. A negatively charged ion known as a cation results from an atom losing one or more electrons. An anion, or negatively charged ion, is created when an atom gains one or more electrons.

If the electronegativity of the two atoms differs by enough to allow one to totally draw an electron away from the other, the connection is ionic. Compounds that mix elements from the left-hand side of the periodic table frequently encounter such circumstance (sodium, potassium, calcium, etc.)

Learn more about chemical bonds here:

brainly.com/question/15444131

#SPJ1

Answer

7.53% 97% if you divide it you can get the answer

Explanation: