Heating causes an object to DXPENA

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Answer 1

Answer: The word is expand.

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How many grams of water can be produced when 11.7 moles of ethane (C2H6) react with excess oxygen gas? Unbalanced equation: C2H6 + O2 → CO2 + H2O
Use the graph to identify the number, letter, or word that completes each statement.• The solubility of Solute D ___ as temperature increases.• The solubility of Solute ___ increases the most as temperature increases.• The solubility of Solutes C and D is the same at __°C.• As the temperature increases from 0 to 100, the solubility only changes by about __ grams for Solute B.
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When an amoeba engulfs a particle of food a blank is formed

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food vacuole is your answer

A microwave oven has a power rating of 850 w. If the microwave oven is turned on for 6 minutes ,how much energy will it use?state the units in your answer

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Power is given by;

$P = (E)/(t)$

850 = $(E)/(6 * 60)$

E = 850 * 360

E = 306000

E = 306 kJ

How many atoms and ions does lithium sulfite have?

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Answer:

Hence the ions per mole are:

$Li^(+)= 2 ions$

$SO_(3)^(2-)(aq)= 1 ions$

In one mole of Li2SO3 , the number of the atoms are

$N_(a)=6.022* 10^(23)$

Explanation:

The formula of lithium sulfite is Li2SO3.

$Li_(2)SO_(3)$

It contain Li+ and SO3(2-) ions.This can be represented by :

$Li_(2)SO_(3)(s)\rightarrow 2Li^(+)(aq) +SO_(3)^(2-)(aq)$

Hence one mole of Li2SO3 will give 2 Li+ ions and 1 SO3 (2-) ion.

Hence the ions per mole are:

$Li^(+)= 2 ions$

$SO_(3)^(2-)(aq)= 1 ions$

Number of atoms in lithium sulfite depends upon the mass of the Li2SO3 present .

Li2SO3 = 93.94 g/mole

This mass is equal to 1 mole of Li2SO3

Now 1 mole of any substance contain Na atoms . This is known as Avogadro Number.

$N_(a)=6.022* 10^(23)$

Hence , if 1 mole of Li2SO3 is present then it contains Na atoms

If other then 1 mole present then number of atoms are calculated by:

$Number\ of\ Atoms=Moles* (N_(a))$

Here n = number of moles

if the mass of the compound is given then first calculate the number of moles.

$Moles=(mass)/(Molar\ mass)$

3.72 short tons into mg

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Both are the unit of mass.

1 short ton = 2000 pounds

1 short ton = 907.18474 kg

Thus, 3.72 short ton = $907.18474 kg * 3.72$

= 3,374.727 kg

Now, convert kg to mg:

1 kg = 10,00,000 mg

Therefore,

3.72 short tons = $3,374.727 kg * 10,00,000$

= $3.3747 * 10^(9) mg$

Hence, 3.72 short tons = $3.3747 * 10^(9) mg$

If 10.0 L of oxygen gas at STP are heated to 512 Celsius what will be the new volume of the gas if the pressure is also increased to 1.75 ATM?

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Answer:

16.4 L

Explanation:

we can use the combined gas law equation that gives the relationship among volume, temperature and pressure conditions of gases.

P1V1/T1 = P2V2/T2

STP conditions are standard temperature and pressure conditions

P1 is standard pressure = 1 atm , T1 is standard temperature = 273 K

and V1 is the volume

P2 is pressure, T2 is temperature and V2 is volume at the second instance

temperature is in kelvin scale,

512 ° + 273 = 785 K

substituting the values in the equation

1 atm x 10.0 L / 273 K = 1.75 atm x V / 785 K

V = 16.4 L

new volume is 16.4 L

Explain whether nitrogen atoms will form bonds with other atoms

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Nitrogen can also bond with otherthree atoms because of its outer shell (valence shell) that has three electrons.This is the reason why organic molecules can be so large because of thisbonding. Suppose you have a compound of NH3. You know that hydrogen can onlyshare 1 electron because 7 of its electrons are filled. Also, in nitrogen, it canonly share 3 electrons because 5 of it are already filled. That is why nitrogenneeds three hydrogen to form NH3.

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