Answer:
An Exothermic Reaction , gives off more heat, and a little energy to its surroundings.
this can helps us figure out that the answer is , C, More heat is given off into its products.
Explanation:
Answer:
A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.
Explanation:
More than one pair of electrons can be shared between atoms to form double or triple covalent bonds. Unlike ionic bonds, covalent bonds are often formed between atoms where one of the atoms cannot easily attain a noble gas electron shell configuration through the loss or gain of one or two electrons.
coefficients of the reactants equal the coefficients of the products,
products and reactants are the same chemicals,
same number of each kind of atom appears in the reactants and in the products,
same number of each kind of atom appears in the reactants and in the products
B. The forward and backward reactions are equal.
C. The forward and backward reactions stop happening.
D. The reactants are changed into products.
SUBMIT
At chemical equilibrium,the forward and backward reactions are equal and opposite.
Chemical equilibrium is defined as the condition which arises during the course of a reversible chemical reaction with no net change in amount of reactants and products.A reversible chemical reaction is the one wherein the products as soon as they are formed react together to produce back the reactants.
At equilibrium, the two opposing reactions which take place take place at equal rates and there is no net change in amount of the substances which are involved in the chemical reaction.At equilibrium, the reaction is considered to be complete . Conditions which are required for equilibrium are given by quantitative formulation.
Factors which affect chemical equilibrium are change in concentration , change in pressure and temperature and presence of catalyst.
Learn more about chemical equilibrium,here:
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B. The forwards and backwards motions are equal
Answer:
The empirical formula is C3H5
Explanation:
Step 1: Data given
Mass of the compound = 7.80 grams
Mass of CO2 = 25.1 grams
Molar mass of CO2 = 44.01 g/mol
Mass of H2O = 8.55 grams
Molar mass of H2O = 18.02 g/mol
Molar mass C = 12.01 g/mol
Molar mass H = 1.01 g/mol
Molar mass O = 16.0 g/mol
Step 2: Calculate moles CO2
Moles CO2 = mass CO2 / molar mass CO2
Moles CO2 = 25.1 grams / 44.01 g/mol
Moles CO2 = 0.570 moles
Step 3: Calculate moles C
For 1 mol CO2 we have 1 mol C
For 0.570 moles CO2 we have 0.570 moles C
Step 4: Calculate mass C
Mass C = 0.570 moles * 12.01 g/mol
Mass C = 6.846 grams
Step 5: Calculate moles H2O
Moles H2O = 8.55 grams / 18.02 g/mol
Moles H2O = 0.474 moles
Step 6: Calculate moles H
For 1 mol H2O we have 2 moles H
For 0.474 moles H2O we have 2*0.474 = 0.948 moles H
Step 7: Calculate mass H
Mass H = 0.948 moles * 1.01 g/mol
Mass H = 0.957 grams
Step 8: Calculate mol ratio
We divide by the smallest amount of moles
C: 0.570 moles / 0.570 = 1
H: 0.948 moles / 0.570 = 1.66
This means for 1 mol C we have 1.66 moles H OR for 3 moles C we have 5 moles H
The empirical formula is C3H5
To find the empirical formula of the hydrocarbon, divide the moles of CO2 and H2O by their molar masses. Use the smallest mole ratio to determine the empirical formula.
To find the empirical formula of the hydrocarbon, we need to determine the mole ratios between carbon and hydrogen in the compound. First, calculate the moles of CO2 produced by dividing the mass of CO2 by its molar mass. Next, calculate the moles of H2O produced by dividing the mass of H2O by its molar mass. Finally, divide the moles of each element by the smallest number of moles to obtain the mole ratio between carbon and hydrogen. The empirical formula is CnHm, where n and m represent the mole ratios of carbon and hydrogen, respectively.
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Please help
Answer:
Explanation:
1 molecule contains 1 carbon atom.
9.837 * 10^24 molecules contains 9.837 * 10^24 atom of carbon.
It's a 1 to 1 ratio.