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Anastasy [175]
3 years ago
7

B.Use the words inside the box to complete the chart below​

Chemistry
1 answer:
Dennis_Churaev [7]3 years ago
7 0

Answer:

Answered below

Explanation:

>> ice is solid

>> water is liquid

>> Steam is gas

>> Ice → water = melting

>> water → steam = evaporation

>> steam → water = condensation

>> water → ice = freezing

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Draw a Lewis structure for the following molecules on scratch paper. Then give the number of bonds between the C and N in each.
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An ion of iron has an 26 protons, 30 neutrons, and 23 electrons. What are its atomic number, atomic mass, and net charge?
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The answer to ur question corresponds to the information u provided in option A.
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6 0
3 years ago
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Please help
ryzh [129]

1. A double replacement chemical equation is a reaction in which the cations and anions of the compounds that react exchange their positions forming new compounds. Double replacement reaction usually leads to the formation of water, a precipitate or a gas as one of the products.

Example of a double replacement reaction:

CaCl_{2}(aq)+Na_{2}SO_{4}(aq)-->CaSO_{4}(s)+2NaCl(aq)

2. The above equation obeys the Law of conservation of mass as the number of atoms of each element on the reactant side is equal to that of the product side. So the overall mass on reactant side will be equal to that on the product side.

CaCl_{2}(aq)+Na_{2}SO_{4}(aq)-->CaSO_{4}(s)+2NaCl(aq)

Mass of each reactant per mole:

(1 * Ca + 2 * Cl)=(1*40.08g/mol) + (2*35.45g/mol)=110.98g/mol

(2*Na)+(1*S)+(4*O)=(2*22.99g/mol)+(1*32.07g/mol)+(4*16.00g/mol)=142.04g/mol

Total mass on reactant side = (110.98+142.04) g/mol= 253.02g/mol

Mass of each product per mole:

(1*Ca)+(1*S)+(4*O)=(1*40.08g/mol)+(1*32.06g/mol)+(4*16.00g/mol)=136.14g/mol

(2*Na)+(2*Cl)=(2*22.99g/mol)+(2*35.45g/mol)=116.88g/mol

Total mass on product side = (136.14+116.88)g/mol=253.02g/mol

Total mass on reactant side = Total mass on product side =253.02g/mol

So, it obeys the law of conservation of mass as the total mass remains same before and after the reaction.

3. In a chemical reaction, mass is conserved that means the mass of reacting species is equal to the mass of the products formed. Similarly the total number of atoms of each element is also conserved in a chemical reaction.

6 0
2 years ago
As the number of carbon atoms in an alkane increases, its number of isomers increases dramatically. Which statement correctly ex
Arada [10]
C) The bonding between carbon atoms allows for branches in carbon chains.

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2 years ago
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What volume (in mL) will a sample of F2 gas occupy in a syringe at 5.5 atm, if the F2 has a volume of 25.0 mL at 1.2 atm?
Paha777 [63]

Answer:

5.45mL

Explanation:

Using Boyle's law equation:

P1V1 = P2V2

Where; P1 = initial pressure

P2 = final pressure

V1 = initial volume

V2 = final volume

According to this question, P1 = 1.2atm, V1 = 25mL, P2 = 5.5atm, V2 = ?

1.2 × 25 = 5.5 × V2

30 = 5.5V2

V2 = 30/5.5

V2 = 5.45mL

Therefore, 5.45 mL sample of F2 gas will occupy a syringe at 5.5atm.

7 0
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