Which one is the best description of a chemical reaction

Asked by maham237 @ 21/07/2021 in Chemistry viewed by 322 People

A.) mixing two substances
B.) the combustion of a substance
C.) forming or breaking bonds
D.) the decomposition of particles

Answered by maham237 @ 21/07/2021

The best description of a chemical reaction would be C. Forming or breaking bonds. As in chemical reactions chemical bonds between substances in reactants and products form and break as a reaction proceeds either in the forward or reverse direction depending if the reaction is reversible.

Which statement is the best description of a chemical bond

Asked by maham237 @ 27/05/2021 in Chemistry viewed by 274 persons

A. A chemical bond connects 2 different molecules. B. A chemical bond holds atoms together. C. A chemical bond turns molecules into atoms. D. A chemical bond identifies atoms in …

Which statement best explains how enzymes speed up chemical reactions

Asked by maham237 @ 22/06/2021 in Biology viewed by 343 persons

A. Enzymes lower the activation energy of a reaction. B. Enzymes gain heat from chemical reactions. C. Enzymes change shape during chemical reactions. D. Enzymes use light energy to speed …

All chemical reactions within a cell are referred to as

Asked by admin @ 03/12/2021 in Biology viewed by 329 persons

All chemical reactions within a cell are referred to as

Which of these is the best description of human ecology

Asked by admin @ 04/11/2021 in Biology viewed by 285 persons

Which of the following is the definition of ecology? a. the social movement with a goal to protect the environment b. the recycling of human-made materials to reduce waste going …

Which best describes the physical and chemical digestion of food

Asked by admin @ 07/10/2021 in Biology viewed by 385 persons

Which best describes the physical and chemical digestion of food? Physical and chemical digestion occur in the mouth; only chemical digestion occurs in the small intestine. Physical and chemicall digestion …

What is the best most accurate description for agonal respirations

Asked by admin @ 27/09/2021 in Health viewed by 352 persons

What is the best, most accurate description for "agonal respirations"? An attempt to breathe through congested nasal passages causing loud sounds Respirations that are fast and labored An ineffective gasping, …

Which one of the following is a redox reaction

Asked by admin @ 20/08/2021 in Chemistry viewed by 298 persons

Which one of the following is a Redox reaction?

Which one of the following is an exothermic reaction

Asked by admin @ 17/08/2021 in Chemistry viewed by 316 persons

Which one of the following is an exothermic reaction ? a) Electrolysis of waterb) Process of photosynthesisc) Process of respirationd) Conversion of limestone into guicklime

What does one mean by exothermic and endothermic reaction

Asked by admin @ 13/08/2021 in Chemistry viewed by 342 persons

What does one mean by exothermic and endothermic reactions? Give examples. NCERT Solutions for Class 10th Science Chapter 1 Chemical Reactions and Equations Exercise 9 NCERT Class X Science - …

Which of the following is the best description of algae

Asked by admin @ 04/08/2021 in Biology viewed by 331 persons

Which of the following best describes the algae known as diatoms? A.Cells have intricate shells of silicon dioxide with two halves B. Cells are encased in rigid walls composed of …

What is the role of catalyst in a chemical reaction

Asked by admin @ 03/08/2021 in Chemistry viewed by 340 persons

What is the role of catalyst in chemical reaction

Of the reactions below which one is a decomposition reaction

Asked by admin @ 02/08/2021 in Chemistry viewed by 253 persons

Of the reactions below, which one is a decomposition reaction? A) NH4Cl NH3 + HCl B) 2Mg + O2 2MgO C) Cd(NO3)2 + Na2S CdS + 2NaNO3 D) 2N2 + …

Which of the following is the best description of federalism

Asked by admin @ 02/08/2021 in History viewed by 312 persons

Which of the following best describes federalism? A. a form of government in which the people are represented by elected leaders B. a system of sharing power between the state …

The best description of the ideal of pluralism is that

Asked by admin @ 02/08/2021 in Political Science viewed by 301 persons

The best description of the ideal of pluralism is that A. the public good should always trump individual interests. B. interests should be free to compete with each other for …

Which plot description is the best example of a tragedy

Asked by maham237 @ 13/07/2021 in Mathematics viewed by 393 persons

A. A young married couple begins to grow apart as work and family obligations take their toll on the marriage, causing them to split up. B. A puppy gets lost …