Determine Which Of The Following Statements Is True: A. When An Anhydrous Salt Becomes Hydrated, It Can (2023)

Answer:

bacteria

Explanation:

the bacteria is what they eat and drink so they addapt to it

Answer:

C. crushing it

Explanation:

Crushing the block of ice will cause it to be in smaller pieces. This causes an increase in surface area.

Answer:

B. saturated

Explanation:

A solution is composed of two constituents , i.e. , solute and solvent .

Where ,

Solute is preset in lesser concentration and solvent is present in higher concentration .

Solution are given a specific name , according to the concentration of the solute and solvent , i.e. ,

1. diluted

2. saturated

3. supersaturated

4. unsaturated

Saturated solution -

They are the type of solution , where the maximum amount of solute is dissolved and further , no more solute can be added , at a given temperature .

Answer:

B. saturated.

Explanation:

The important point here is 'at a given temperature'. The amount of solute it can hold will vary according to the temperature.

Answer:

False

Explanation:

A solution is formed by a solute and a solvent

The solute is the substance that is usually found in the least amount

The solvent, on the other hand, is the substance that usually appears in greater quantity

In a solution solvent is added to decrease the concentration of solute, therefore as the concentration of solute is decreased, there is more solvent in the solution than solute

Answer:

False

Explanation:

A dilute solution has a small amount of solute dissolved in the solution. A concentrated solution has a relatively large amount of solute dissolved in the solution.

Answer:

C

Explanation:

Answer: it has 4 electrons surrounding it. Every electron wants to be bonded to another electron. That means every atom want 8 electrons total. Carbon on its own only has 4 electrons. That means it can make 4 bonds.

Explanation: it has 4 electrons surrounding it. Every electron wants to be bonded to another electron. That means every atom want 8 electrons total. Carbon on its own only has 4 electrons. That means it can make 4 bonds.

Answer: 23.6 grams HCl

Explanation:

The density 1.18g/mL just means that there is 1.18 grams of HCl per 1 mL of it.

So if you have 20 mL of it, it would just be 1.18 * 20 grams. This equals 23.6 grams of HCl.

It's just like if at your supermarket they sold apples for $1.00/lb. If you wanted 5 lbs, it would cost $5.00 ($1.00 * 5).

Answer:

molarity of the KI solution = 0.04 mol/L

Explanation:

Molarity (M) is the concentration of a solution expressed as the number of moles of solute per liter of solution.

The law that we can applied to calculate the M is:

M = n / V

n - number of moles

V- volume of the solution (liters)

Then insert in the equation the values from the question;

M = 0.082 mol / 2.03 L = 0.04 mol/L

Answer:

0.5832 miles =3079ft and 3.552 inches​

Explanation:

This is if you are wanting the foot amount and the extra in inches, if you are wanting it in just feet and just inches it would be 3079.296 feet and 36951.552 inches

Answer:

Anendothermic reactionis a chemicalreactionin which moreenergyis needed to break bonds in the reactants than is released when new bonds form in the products. A constant input ofenergy, often in the form of heat, is needed to keep anendothermic reactiongoing.

Answer:

it changes.

Explanation:

when in solid form it has an amount of mass. but when evaporated, water is pretty much massless.

Answer:

Keq = ( [ H2(g) ] * [ Cl2(g) ] ) / [ HCl(g)

Explanation:

from de la reaction:

• 2HCl(g) ↔ H2(g) + Cl2(g)

⇒ Keq = ( [ H2(g) ] * [ CL2 ](g) ) / [ HCl(g)

Answer: The expression of is written below.

Explanation:

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as

For a general chemical reaction:

The expression for is written as:

Concentration of solid and liquid substances in a chemical reaction is taken to be 1.

For the given chemical equation:

The expression of for the above equation follows:

Hence, the expression of is written above.

Answer: The answer is K3PO4(s) → 3K+(aq) + PO43–(aq) since water-soluble ionic tripotassium phosphate dissociates completely into K+ and PO43– ions when dissolved, that is, no K3PO4 remains in the solution. Carbonic acid H2CO3 and acetic acid CH3COOH are weak electrolytes since they are weak acids that do not completely ionize, while nonelectrolyte CH3OH do not dissociate into ions.

Answer:

B

Explanation:

physical changes do not change the chemical or molecular make up if a substance

Answer:

B. may involve a change in phase but does not involve a change in the molecular structure.

Explanation:

This is because a physical change is when a substance in changed but remains the same substance. For example if you freeze liquid water into ice it is still H2O.

The Celsius temperature scale is based on the boiling and freezing points of water.

The boiling point of water is 100 degrees Celsius.

The freezing point of water is 0 degrees Celsius.

Answer:

The Celsius temperature scale based on the boiling and freezing points of water

Explanation:

Temperature is defined as degree of coldness or hotness of a body or substance. And degree Celsius is one of the units in which it is measured.

A Celsius temperature scale s used to measure temperature in Celsius in which zero degree indicates freezing point of water and hundred degree Celsius indicates boiling point of water.

0° C = Temperature at which water freezes

100° C = Temperature at which water boils

Answer:

I couldn't answer questions 4 and 5 since there was no image attached! I hope it helps!

Explanation:

1. There are six electrons in the n shell of the oxygen before bonding.
2. The maximum number of electrons that an oxygen atom can hold in its outer energy level is eight electrons.

3. There are ten electrons in a water molecule.

4. -

5. -

Answer:

B

Explanation:

It is a quantitative observation because quantitative data deals with values and numbers like height, weight, body temperature, etc.

The question also states that the biologist determines that the body temperature is 29⁰C, this is classified as an observation.

Hence, the answer is B, because the data is quantitative (as it contains numerical values), and the biologist observed this, most likely through a series of test.

Answer:

B

Explanation:

Answer:

The type of chemical bond maximizes the stability of the atoms that form it. An ionic bond, where one atom essentially donates an electron to another, forms when one atom becomes stable by losing its outer electrons and the other atoms become stable (usually by filling its valence shell) by gaining the electrons.

Explanation: