When a pot of water sits on a hot stove, the metal pot is heated, and then transfers its heat to the water. A student claims that conduction is the only type of heat transfer occurring. Which statement explains why the student's idea is incorrect?a. Conduction cannot occur between two different phases of matter.
b. The water transfers heat within the pot by convection.
c. Water cannot be heated by electromagnetic radiation.
d. Metal is a poor conductor of heat.

Answers

Answer 1

Answer:

The statement which explains why the student's idea is incorrect is that conduction cannot occur between two different phases of matter.

What is Conduction?

This involves the transfer of energy between two substances when they are in contact with one another.

The heat from the stove is first passed to the pot before it is transferred to the water hence option A was chosen.

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Answer 2

Answer:

When a pot of water sits on a hot stove, the metal pot is heated, and then transfers its heat to the water. A student claims that conduction is the only type of heat transfer occurring. The statement that explains why the student’s idea is incorrect Conduction cannot occur between two different phases of matter. The answer is letter A.

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A gas initial volume and pressure is 5m^3 and 101320 Pa and allows to expand up to 12m^3 then what is the final pressure?

Answers

Answer:

New pressure = 42216.66 Pa

Explanation:

Given that,

Initial volume, V₁ = 5 m³

Final pressure, P₁ = 101320 Pa

Final volume, V₂ = 12 m³

We need to find the final pressure of the gas. We know that the relation between pressure and volume is given by :

$P\propto (1)/(V)\n\nP_1V_1=P_2V_2\n\nP_2=(P_1V_1)/(V_2)\n\nP_2=(101320 * 5)/(12)\n\nP_2=42216.67\ Pa$

So, the new pressure is equal to 42216.66 Pa.

In the compound MgCl2, the subscript 2 indicates thata. there are two magnesium ions for each ion of chlorine
b. the chloride ion is twice the size of the magnesium ion.
c. magnesium and chlorine form a double covalent bond.
d. there are two chloride ions for each magnesium ion.

Answers

The correct answer is answer choice D, there are two chloride ions for each magnesium ions. Subscripts always indicate the number of atoms, or ions, present in the molecule. The 2 refers to the element directly to its left, so answer choice A is reversed; there are 2 chloride ions for each magnesium ion, not the other way around. Answer choice B and C are incorrect because the subscript refers to the number of atoms, not the size of the atoms or the type of bond.

Answer:

The chloride ion accepted two electrons from the magnesium ion.

Explanation:

How do three states of matter arise?

Answers

The status of the state of matter of a material defines the phase. Pellet currently case 16 is defined; three of which solid, liquid and gas are referred to as conventional cases. There are a total of 16 state currently defined, these classic except; liquid crystal, amorphous solid, magnetic regularly, superconducting, superfluid, the Bose-Einstein condensation, Rydberg molecules, plasma (ionized gas), the quark-gluon plasma, degenerate matter, Superkate, the stringy liquid and SuperCam mine. Daily life in general, solid materials, include liquid or gaseous, but outside world, 99% of the material in the universe plasma (ionized gas) is in the form.

In a titration, 20.0 milliliters of 0.15 M HCI(aq) is exactly neutralized by 18.0 milliliters of KOH(aq).Complete the equation in your answer booklet for the neutralization reaction by writing the formula of each product.

KOH(aq) + HCl(aq)==> ________ +________

Compare the number of moles of H+(aq) ions to the number of moles of OH-(aq) ions in the titration mixture when the HCl(aq) is exactly neutralized by the KOH(aq).

Determine the concentration of the KOH(aq).

Answers

The reaction yields H2O and KCl (remember that neutralization reactions produce water and a salt).When HCl is exactly neutralized by KOH, you are left with no excess H+ or OH- from the strong acid or strong base. Also, since both the acid and base are strong, their conjugate base and conjugate acid, respectively, have negligible basicity. Therefore, the final solution is of neutral pH and there are equal amounts of H+(aq) and OH-(aq).Since the acid is monoprotic and the base releases only 1 OH- per molecule dissociated, you need not worry about dissociation constants. In this case, you find the molarity using M1V1 = M2V2. You are finding M2, so M2 = M1V1/V2 = (0.15)(20.0)/(18.0) = 0.17M (this is considering significant figures).

Need a correct answer fastHow many moles of solute are contained in a 500.0 milliliter solution that has a concentration of 0.35 M?

Answers

There would be 0.175 moles of solute contained in a 500.0 milliliter solution that has a concentration of 0.35 M.

Let x be the number of moles
Since the equation is moles/liters=molarity, change 500 mL to liters:
500.0 mL=0.5L
Divide:
x/0.5L = 0.35M
Cross multiply: x=0.35*0.5
x=0.175 moles

Doing science, and having a bit of trouble.
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Answers

Each column is also called a group. The elements in each group have the same number of electrons in the outer orbital. As you keep counting the columns, you'll know how many electrons are in the outer shell.

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