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3 years ago

A battery lighting a bulb is an example of energy converting toenergy.

Chemistry

1 answer:

tino4ka555 [31]3 years ago

3 0

Depends have you been taught that batteries store chemical energy then it’s chemical to light

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As a rollercoaster travels upward what type of energy transfer is taking place?A.electrical to thermal energy B.kinetic to poten

slamgirl [31]

Answer:

Explanation:

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3 years ago

A hot-air balloon is filled with air to a volume of 3000 m3 at 750 torr and 21°C. The air in the balloon is then heated to 60.°C

valina [46]

Answer: 1.47

Explanation:

The combined gas equation when pressure is constant:

$\frac{V_1}{n_1T_1}=\frac{V_2}{n_2T_2}$

where,

$n_1$ =original number of moles of air in the balloon = ?

$n_2$ = number of moles of air in the heated balloon = ?

$V_1$ = initial volume of gas = $3000m^3$

$V_2$ = final volume of gas = $5000m^3$

$T_1$ = initial temperature of gas = $21^oC=273+21=294K$

$T_2$ = final temperature of gas = $60^oC=273+60=333K$

Now put all the given values in the above equation, we get the final pressure of gas.

$\frac{3000}{n_1\times 294K}=\frac{5000}{n_2\times 333K}$

$\frac{n_2}{n_1}=1.47$

Therefore, the ratio of the number of moles of air in the heated balloon to the original number of moles of air in the balloon is 1.47

5 0

3 years ago

b. Imagine an unusual life form in which the N atom in an amino acid is changed to a C atom. Could a hydrogen bond in this unusu

musickatia [10]

Answer: No hydrogen bond cannot occur in this alpha helix structure.

Explanation: For hydrogen bond to form, the electronegativity difference should be more than 1.7. carbon has an electronegativity of 2.5 whereas hydrogen has 2.1 so their electronegativity difference is 0.3. So in this alpha helix structure cannot occur.

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3 years ago

what are the three current biggest sources of electrical energy? i need to select three choices A. nuclear powerB. hydroelectric

tigry1 [53]

All of them are the current biggest sources of electrical energy.

3 of them will be explained.

------------------------

1) Natural gas:

it was the largest source, 38 % approx., of the USA electricity generation. It is used in steam turbines and gas turbines to generate electricity.

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2) Nuclear energy:

It was the source of 19% of the U.S. electricity generation in 2021. Nuclear power plants use steam turbines to produce electricity from fission.

---------------------

3) Coal power:

It was the 2nd.-largest energy source for US electricity generation in 2021.

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2 years ago

When calcium metal (Ca) reacts with oxygen gas (O2), it produces the ionic compound calcium oxide (CaO). Write the balanced equa

jonny [76]

Oxidation-Reduction Reactions Suggested Reading Thus the oxidation number for oxygen in calcium oxide is -2. ... In effect, each calcium atom loses two electrons to form Ca2+ ions, and each O atom in O2 gains two electrons to form O2- ions. The net result is a transfer of electrons from calcium to oxygen, so this reaction is an oxidation-reduction reaction.

+O²(g)=2CaO(s)

Explanation:

we can conclude that in the reaction there is both reduction and oxidation.

6 0

3 years ago

A battery lighting a bulb is an example of ____energy converting to____energy.

A battery lighting a bulb is an example of energy converting toenergy.