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3 years ago

Write balanced complete ionic equation for the reaction cas(aq)+cucl2(aq)→cus(s)+cacl2(aq)

Chemistry

2 answers:

Hunter-Best [27]3 years ago

4 0

It is already balanced. cas(aq)+cucl2(aq)â†’cus(s)+cacl2(aq)

Ksivusya [100]3 years ago

4 0

Answer: The given equation is already balanced.

Explanation:

A balanced chemical reaction is defined as the reaction in which total mass on the reactant side is equal to the total mass on the product side.

These equations follow Law of Conservation of Mass. The mass remains conserved in a chemical reaction.

For the given chemical equation:

$CaS(aq.)+CuCl_2(aq.)\rightarrow CuS(s)+CaCl_2(aq.)$

On the reactant side: $[(40+32)+(63.5+(2\times 35.5))]=206.5g/mol$

On product side: $[(63.5+32)+(40+(35.5\times 2))]=206.5g/mol$

As, the mass on reactant side is equal to the mass on product side. Hence, the equation is a balanced chemical equation.

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Hey can I please get help I do not understand this

krok68 [10]

There will be a 25% chance that the plant will have wrinkled seed.

Explanation:

The round seeds are dominant and can be considered homozygous for round seeds will have alleles RR

The wrinkled seeds are recessive and can be considered homozygous for wrinkled seeds will have alleles rr

When these are crossed

r r

R Rr Rr

R Rr Rr All the progeny are Heterozygous round seed

When These are crossed with plant heterozygous for round seeds

RrXRr

R r

R RR Rr

r Rr rr

The genotype ratio is 1:2:1 1 homozygous round, 2 heterozygous round, 1 homozygous wrinkled.

The phenotype ratio is 3:1 3 round and 1 wrinkled

Hence 25 % of the plants will have wrinkled seeds

3 0

3 years ago

An object has a mass of 46.5 g and a volume of 55 mL. What is its density?

AveGali [126]

Answer:

0.84545454545 g/ml

Explanation:

to find density do mass/volume

4 0

2 years ago

Cyclohexene, a hydrocarbon, has a molar mass of 82.1 g/mole. if the combustion of 0.8300 g cyclohexene produces 0.9102 g h2o and

adelina 88 [10]

Answer is: the molecular formula is C₆H₁₀.

Chemical reaction: C₆Hₓ + yO₂ → 6CO₂ + x/2H₂O.

m(H₂O) = 0.9102; mass of the water.

n(H₂O) = m(H₂O) ÷ m(H₂O)

n(H₂O) = 0,9102 g ÷ 18 g/mol

n(H₂O) = 0,0505 mol.

From chemical reaction: n(H) = 2 · n(H₂O).

n(H) = 0.101 mol.

m(CO₂) = 2.668 g; mass of carbon dioxide.

n(CO₂) = 2.668 g ÷ 44 g/mol.

n(CO₂) = 0.0606 mol; amount of the substance.

n(CO₂) = n(C) = 0.0606 mol.

n(C) : n(H) = 0.606 mol : 0.101 mol.

n(C) : n(H) = 6 : 10; proportion of carbon and hydrogen atoms in cyclohexene.

8 0

4 years ago

Read 2 more answers

950 J of energy is used to heat an unknown mass of copper from 20.0° C to 95.0° C. The specific heat of copper = 0.39 J/(g·°C).

VladimirAG [237]

Answer:

32.7 g

Explanation:

Q = MC∆T

∆T = 95-20 = 75

C= 0.39

Q= 950J

from first formula

m = Q/c∆T

m = 950/0.39*75

m = 32.47 h

5 0

3 years ago

Read 2 more answers

ombustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbo

Bad White [126]

Explanation:

The given reaction is as follows.

$C_{4}H_{4}(g) + 2H_{2}(g) \rightarrow C_{4}H_{8}(g)$

So, enthalpy change for the given reaction is calculated as follows.

$\Delta H_{rxn} = \sum n \Delta H_{products} - \sum n \Delta H_{reactants}$

where, n = number of moles.

Now, putting the given values into the above equation and calculate the change in enthalpy as follows.

$\Delta H_{rxn} = \sum (1 mol C_{4}H_8(g)) \times (-2755 kJ / mol) - \sum (2 mol H_2(g)) \times (-286 kJ/mol) + (1 mole C_4H_4(g)) \times (-2341 kJ/mole)$

= $\sum -2755 kJ - \sum -2913 kJ)$

= 158 kJ

Thus, we can conclude that enthalpy of the combustion is 158 kJ.

8 0

3 years ago

Read 2 more answers