Name the following compounds:

Answer:

Explanation:

OH forms a covalent bond. However, OH itself is negatively charged. Therefore, it can form ionic attractions to the positively charged sodium (Na+) ions.

Answer:

0.01.

Explanation:

This is because, if you divided one rectangle by ten, it will give 0.1

That is 1/10 = 0.1

If each of the smaller rectangles is divided by 10.

It will be 0.1/10 which will be equal to 0.01.

The rectangles will be 0.01 each.

Answer:

Explanation:

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Answer:

true

downstream to the riverbed. However, the most common mechanism to produce older rocks on top of younger is by thrust faulting. Thrust faults form where rocks are being compressed, usually by plate tectonic mechanisms. Thrust faults rip up older strata and pile it on top of younger rocks.

Explanation:

Answer:

Explanation:

ℎ ℎ

Answer:

6.25m/s

Explanation:

speed = distance/time

speed = 100/16 = 6.25m/s

Answer:

q_metal = -12000 J = -12 KJ

Here, the negative sign indicates that the energy is lost by the metal piece.

Explanation:

The magnitude of energy change of the metal X can be given by the following formula:

[tex]q_{metal} = mC\Delta T[/tex]

where,

m = mass of metal = 100 g

C = Specific Heat Capacity of metal X = 0.24 J/g.°C

ΔT = Change in Temperature of Metal Piece = 0° C - 500°C = -500°C

Therefore, using these values in the equation, we get:

[tex]q_{metal} = (100\ g)(0.24\ J/g^oC)(-500^oC)\\[/tex]

q_metal = -12000 J = -12 KJ

Here, the negative sign indicates that the energy is lost by the metal piece.

Answer:

[tex]\boxed {\boxed {\sf 2.62 \ mol \ N_2}}[/tex]

Explanation:

The relationship between moles and gases is unique. Regardless of the type of gas, there will always be 22.4 liters of gas in 1 mole, as long as it's at STP (standard temperature and pressure).

We can make a ratio using this information.

[tex]\frac {22.4 \ L \ N_2}{ 1 \ mol \ N_2}[/tex]

Multiply by the given number of moles.

[tex]58.6 \ L \ N_2 *\frac {22.4 \ L \ N_2}{ 1 \ mol \ N_2}[/tex]

Flip the fraction so the liters of nitrogen cancel.

[tex]58.6 \ L \ N_2 *\frac {1 \ mol \ N_2}{ 22.4 \ L \ N_2}[/tex]

[tex]58.6 *\frac {1 \ mol \ N_2}{ 22.4 }[/tex]

[tex]\frac {58.6 \ mol \ N_2}{ 22.4 }= 2.61607143 \ mol \ N_2[/tex]

The original measurement of liters has 3 significant figures, so our answer must have the same.

For the number of moles calculated, 3 sig figs is the hundredth place. The 6 in the thousandth place tells us to round the 1 to a 2.

[tex]2.62 \ mol \ N_2[/tex]

58.6 liters of N₂ gas at STP is equal to about 2.62 moles.

it shoudl be : 2Fe(NO3)3 + 3MgSO4 → 3Mg(NO3)2 + Fe2(SO4)3

(the difference is Fe2(SO4)3 has no coefficient)

Answer: 0.99 grams of chlorine gas is produced by the reaction of 3.3g of ammonium perchlorate

Explanation:

To calculate the moles, we use the equation:

[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}[/tex]  

[tex]\text{Number of moles of } NH_4ClO_4=\frac{3.3g}{117.5g/mol}=0.028moles[/tex]

The decomposition of ammonium perchlorate is :

[tex]2NH_4ClO_4\rightarrow Cl_2+N_2+2O_2+4H_2O[/tex]

According to stoichiometry :

2 moles of [tex]NH_4ClO_4[/tex] produce =  1 mole of [tex]Cl_2[/tex]

Thus 0.028 moles of [tex]NH_4ClO_4[/tex] produce=[tex]\frac{1}{2}\times 0.028=0.014moles[/tex]  of [tex]Cl_2[/tex]  

Mass of [tex]Cl_2=moles\times {\text {Molar mass}}=0.014moles\times 71g/mol=0.99g[/tex]

Thus 0.99 grams of chlorine gas is produced by the reaction of 3.3g of ammonium perchlorate

Answer:

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Explanation:

Answer:

The answer is Magnesium

Answer:

A= Compound

B= Mixture

C= Element

D= Element

Explanation:

A has two different types of atoms chemically together as a compound

B is made up of two or more different atoms not chemically joined together

C has one type of atom

D has one type of molecule. They're the same and could be a diatomic element like hydrogen

Sorry if this is confusing or wrong

Answer:

704.6 g CO2

Explanation:

MM sucrose = 342.3 g/mol

MM CO2 = 44.01 g/mol

g CO2 = 456.7 g sucrose x (1 mol sucrose/MM sucrose) x (12 moles CO2/1 mol sucrose) x (MM CO2/1mol CO2) = 704.6 g CO2

Answer:

im sorry i dont

Explanation:

Answer:

[tex]\Delta H_{rxn}=-0.111 \frac{kJ}{mol}[/tex]

Explanation:

Hello!

In this case, since the total heat flow due to the reaction equals the negative of the calorimeter's heat, we can first compute the former as shown below:

[tex]Q_{rxn}=-C\Delta T\\\\Q_{rxn}=6.38\frac{J}{\°C}*3.2\°C=-20.416J[/tex]

Now, since this total heat flow due to the reaction is defined in terms of the heat of reaction and the total reacted moles:

[tex]Q_{rxn}=n*\Delta H_{rxn}[/tex]

Thus, we compute the moles in 8.5 g of ethanol:

[tex]n=8.5g*\frac{1mol}{46.08g}=0.185mol[/tex]

Therefore, the heat of reaction results:

[tex]\Delta H_{rxn}=\frac{Q_{rxn}}{n} =\frac{-20.416J}{0.185mol} =-110.7J/mol\\\\\Delta H_{rxn}=-0.111 \frac{kJ}{mol}[/tex]

Best regards!

The correct option is option A. when the students check the air pressure of bicycle tires, once by keeping it out in the winter and noticing the air pressure being decreased and after by keeping the bicycle inside at room temperature and noticing that the air pressure has increased.

According to Gay lussac's law, the temperature and pressure of a gas are directly proportional to each other, provided the volume is constant.

When the temperature of a gas is increased, the molecules gain more kinetic energy and hence the frequency of them hitting the walls of the container increases which basically implies that the pressure increases.

On the other hand when the temperature is low, the molecules do not have substantial kinetic energy to hit the walls of the container frequently, that is the pressure decreases.

When the bicycle tires were kept out in the winter, the low temperature decreased the air pressure inside the tires. While when they were warmed at room temperature, the pressure inside the tires increased.

Therefore, the correct option is option A.  when the students check the air pressure of bicycle tires, once by keeping it out in the winter and noticing the air pressure being decreased and after by keeping the bicycle inside at room temperature and noticing that the air pressure has increased.

To know more on Gay lussac's law, click on

https://brainly.com/question/30758452

#SPJ2  

Answer:

Energy is transferred when atoms are rearranged

Explanation:

Breaking bonds between atoms need energy. When new bonds are formed, energy is released

The law of conservation of energy is energy isn't created or destroyed

A and B are wrong because there is creation or destruction of energy

C is wrong because energy can be transferred (think touching a hot stove with your finger.  heat is transferred from the stove to your finger OUCH!)

D is correct because the energy is still there, but in a different form

Answer: all of them?

Explanation:

Answer:

Deku.

Explanation:

Answer:

Na2B4O7 + H2SO4 + 5H2O → 4H3BO3 + Na2SO4  

Explanation:

The unbalanced equation is given as;

Na2B4O7 + H2SO4(aq) + H2O → H3BO3(s) + Na2SO4(aq)

Balancing the equation of the reaction involves making sure the number of moles of elements in the reactants to be equal to the number of moles of the element of the products.

The balanced equation is given as;

Na2B4O7 + H2SO4 + 5H2O → 4H3BO3 + Na2SO4  

Answer:

No, light behaves as a Transverse Wave. All electromagnetic waves behave as transverse waves.