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3 years ago

How does an increase in concentration affect a chemical reaction? (3 points)

Chemistry

1 answer:

Firlakuza [10]3 years ago

4 0

Answer:

Explanation:

1. Increasing the concentrations of reactants in a chemical reaction would affect a reaction positively by increasing the number of collisions within a particular period which in turn increases the rate of reaction.

2. The molecules gains energy,which enable them to move faster and collide with the right energy for a reaction to take place.

3. The average kinetic motion of molecules in a solution can be measured by measuring the temperature. Temperature is a measure of the average kinetic energy of molecules in a solution.

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What type of bond does corbon and hydrogen make

il63 [147K]

Answer: covalent bond

Explanation: The carbon-hydrogen bond is a bond between carbon and hydrogen atoms that can be found in many organic compounds.

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2 years ago

What is the molarity of an aqueous solution containing 1.5 moles of calcium chloride in 2.75 L of solution? A. 0.004 M B. 0.55 M

kondor19780726 [428]

Answer:

B. 0.55 M

Explanation:

Step 1: Given data

Moles of calcium chloride (solute): 1.5 mol

Volume of solution: 2.75 M

Step 2: Calculate the molarity of the aqueous solution

The molarity is a way to express the concentration of a solution. It is equal to the quotient between the moles of solute and the liters of solution.

M = moles of solute / liters of solution

M = 1.5 mol / 2.75 L = 0.55 mol/L = 0.55 M

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2 years ago

Which statements accurately describe stars? Check all that apply.All stars are smaller than the Sun.

Travka [436]

Stars are made of gas & star color is related to temperature are the correct answers.

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2 years ago

Read 2 more answers

Ethyne gas combusts with oxygen gas according to the following reaction: Calculate the volume, in mL of CO2 produced when 73 g o

Bezzdna [24]

Answer: Volume of CO2 is 89127 mL

Explanation: The reaction that takes place is: C2H2 + O2 --> CO2 + H2O

The amount of C2H2 that react allow us to predict the amount of CO2 that will be obtained

$mol CO2 = 73gC2H2 .\frac{1 mol C2H2}{26gC2H2} . \frac{2mol CO2}{4mol C2H2} = 5,6 mol CO2$

26g/1mol is molar mass of C2H2 and 2/4 is the molar relation between CO2 and C2H2 in this reaction. Canceling units, at the end mol of CO2 are obtained

Now with the moles of CO2 and the ideal gases equation is possible to calculate the volumen occupied by the gas.

PV = RnT where P: pressure, V: volume, R: ideal gas constant, n: moles and T: temperature expressed in K (add 273,15 to °C temperature: 37,4°C + 273,15 = 310,55K)

V= RnT/P

$V= \frac{0,08206 atmL/molK . 5,6 mol. 310,55 K}{1,6 atm} =89,127 L$

To express volume in mL multiply the L result by 1000 which equals 89127 mL

5 0

2 years ago

If the reactants of a reaction have ab initial mass of 25 grams what is the mass of the product?

Studentka2010 [4]

Answer:

It remains the same

Explanation:

The law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. For example, the mass of sodium plus the mass of chlorine that reacts with the sodium equals the mass of the product sodium chloride.

8 0

2 years ago