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slavikrds [6]
2 years ago
9

The concentration of reactants and products and the rate of reaction were measured during a chemical reaction. After the first 3

seconds, the rate of reaction was 1.8x10^-6 M/s. Which of the following would
explain a lower rate after another 3 seconds?
A) The concentration of reactants increased while the concentration of product decreased
B) The concentration of reactants decreased while the concentration of product increased
C) All concentrations of reactants and products decreased
D) All concentrations of reactants and products increased
Chemistry
1 answer:
igomit [66]2 years ago
4 0

Answer: B

Explanation:

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3 years ago
Which group in the periodic table contains the three elements with the highest electrical conductivities?
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C Group 11

Explanation:

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An OH group attached to a hydrocarbon is called a _________ group whereas ______________ is a polyatomic ion with a charge of __
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3 0
3 years ago
You carefully weigh out 16.00 g of CaCO3 powder and add it to 64.80 g of HCl solution. You notice bubbles as a reaction takes pl
bulgar [2K]

Answer: Mass of CO_2  produced in this reaction was 6.56 grams

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

CaCO_3(s)+2HCl(aq)\rightarrow H_2O(l)+CO_2(g)+CaCl_2(aq)

Mass or reactants =  Mass of CaCO_3+ mass of HCl = 16.00 + 64.80 = 80.80 g

Mass of products  = mass of aqueous solution + mass of CO_2 + = 74.24 + x g

Mass or reactants = Mass of products

80.80 g = 74.24 + x g

x = 6.56 g

Thus mass of CO_2  produced in this reaction was 6.56 grams

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4 years ago
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