How do you know a chemical reaction has taken place

Asked by admin @ 02/08/2021 in Chemistry viewed by 273 People

How do we know a chemical reaction has taken place

Answered by admin @ 02/08/2021

1)A change that changes state and colour of substance.
2)A change that releases heat energy.
3)A change which forms an insoluble substance as precipitate.
4)A change that liberates a gas.

Where in a cell do most chemical reactions take place

Asked by admin @ 06/08/2021 in Biology viewed by 306 persons

Where in a cell do most of the chemical reactions take place

How do you know when a chemical reaction has occurred

Asked by admin @ 26/11/2021 in Chemistry viewed by 301 persons

How do we know that a chemical reaction occured

How do you know if a chemical reaction has occurred

Asked by admin @ 26/11/2021 in Chemistry viewed by 312 persons

How do we know that a chemical reaction occured

Write a balanced chemical equation for the reaction taking place

Asked by admin @ 06/08/2021 in Science viewed by 351 persons

Write balanced chemical equation for the reactions that take place during respiration. Identify the type of combination reaction that takes place during this process and justify the name. Give one …

Which of the following does not indicate that a chemical change may have taken place

Asked by maham237 @ 24/12/2020 in Chemistry viewed by 380 persons

Which of the following does NOT indicate change may have taken place? . . A - Fracture Formation. B - Gas Production . C - Precipitate Formation . D - …

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

Reaction between nitrogen and oxygen takes place as follows

Asked by admin @ 20/08/2021 in Chemistry viewed by 318 persons

Question 7.8 Reaction between N2 and O2 takes place as follows: 2N2(g) + O2(g) <---> 2N2O(g) If a mixture of 0.482 mol of N2 and 0.933 mol of O2 is …

What type of nuclear reaction takes place in the sun

Asked by admin @ 04/08/2021 in Chemistry viewed by 338 persons

Define nuclear reaction that takes place in the sun.

What is the role of catalyst in a chemical reaction

Asked by admin @ 03/08/2021 in Chemistry viewed by 342 persons

What is the role of catalyst in chemical reaction

Where do the light independent reactions of photosynthesis take place

Asked by admin @ 02/08/2021 in Science viewed by 306 persons

Where do the light independent reaction of photosynthesis occur and why Fast me rep plzz is ka ans batao jaldi

Which of the following takes place during a redox reaction

Asked by maham237 @ 08/06/2021 in Chemistry viewed by 311 persons

A. Electrons are gained only. B. Electrons are lost only. C. Electrons are both gained and lost. D. Electrons are neither gained nor lost.

Sum of all chemical reactions in the body

Asked by maham237 @ 11/02/2021 in Health viewed by 312 persons

The sum of all chemical reactions in the body is called

In each reaction box, place the best reagent and conditions from the list below. benzene

Asked by maham237 @ 26/12/2020 in Chemistry viewed by 307 persons

In each reaction box place the best reagent and conditions from the list below benzene 3 boxes

A catalyst affects the rate of a chemical reaction by

Asked by admin @ 22/11/2021 in Biology viewed by 303 persons

How do catalysts affect a chemical reaction? A. increase the activation energy B.provide activation energy C. lower activation energy D. lose activation energy