Chemistry, 22.08.2019 23:30 isaicruz2018

If a chemical change requires energy, which of the following could be the source of the energy?
a. heating with a flame
b. settling the mixture for 20 minutes
c. measuring mass from a balance beam
d. adding more substance to the observed material

Answers: 1

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 00:30

Asolution of sodium hydroxide was titrated against a solution of sulfuric acid. how many moles of sodium hydroxide would react with 1 mole of sulfuric acid?

Answers: 2

Answer

Chemistry, 22.06.2019 12:30

Avariable that is not being directly tested during an experiment should be

Answers: 1

Answer

Chemistry, 22.06.2019 21:30

If 22.5 of nitrogen at 748 mm hg are compressed to 725 mm hg at constant temperature. what is the new volume?

Answers: 1

Answer

Chemistry, 23.06.2019 02:30

What type of energy conversion occurs when you place your feet near the fire place and they become warm

Answers: 1

Answer

You know the right answer?

If a chemical change requires energy, which of the following could be the source of the energy?

Questions

Health, 19.03.2021 06:40

Select the correct answer. Which list describes the aspects of health that should be in balance to achieve total wellness? OA. nutritiona...

Mathematics, 19.03.2021 06:40

It costs $40 to register for Karate, then $15 per lesson. If Rachel is taking lessons and wants to spend no more than $250, how many lessons can she t...

English, 19.03.2021 06:40

What sociological perspective best explains the problem of immigration in our society use sociological terms please help I need to pass my class pleas...

Social Studies, 19.03.2021 06:40

How did Slavery in the American Colonies have an overall negative impact on life in Africa? HELPP due in 20 minutes...

Mathematics, 19.03.2021 06:40

Thomas bought a new car for $27,500 when he turned 16 in 1996. His car depreciates at an average rate of 15% of its value every year. •Does this situ...

Social Studies, 19.03.2021 06:40

4. T/F Europe has a generally flat and open topography that has left the continent vulnerable to invasion....

English, 19.03.2021 06:40

Is conflict bad True or false...

History, 19.03.2021 06:40

Articles of confederation What was the name of the first constitution of the United States...

Mathematics, 19.03.2021 06:40

If you career is vastly different from your grandmothers this could be the result of...

Mathematics, 19.03.2021 06:40

Write the equation in standard form for the circle x^2 + y^2 + 16x + 28 = 0....

Business, 19.03.2021 06:40

Tariffs may raise the price that foreign customers must pay for goods produced in the United States, negatively impacting a U. S. firm's ability to be...

Mathematics, 19.03.2021 06:40

Raymond invested $4,000 in a new company. The value of his investment has been growing at a rate of 6% per year for the last 5 years. The function A =...

Mathematics, 19.03.2021 06:40

PLEASE HELP ASAP ON GEOMETRY What is the equation of the CIRCLE, assuming that every tile is worth 1 unit? Picture is attached.

English, 19.03.2021 06:40

Which best describes the different points of view of these two passages? The first passage is written from a third-person point A) of view, whi...

Chemistry, 19.03.2021 06:40

How many moles of O are in 12.6 mol Fe(NO3)3? The answer is 113.4, rounded is 113 Explanation: Just multiply 12.6 mol Fe(NO3)3 by 9 ( 9 is the...

Mathematics, 19.03.2021 06:40

Copy the shape and fill in the missing angle. Sow the work. Thanks.

Mathematics, 19.03.2021 06:50

Swapna gathered data on the number of page views for each of her blog posts. For her 40 latest posts, she found a sample mean of 358 with a population...

History, 19.03.2021 06:50

Which right is considered as a "soul" by Dr. ambedkar ?...

Chemistry, 19.03.2021 06:50

What is the vapor pressure of propanone at 50°C?...

Mathematics, 19.03.2021 06:50

Rob's biweekly gross pay is $1,254.00. His Social Security deduction is $77.75, Medicare is $18.18. Other deductions are: federal tax $235, state tax...

More questions: Chemistry Another questions

If a chemical change requires energy, which of the following could be the source of the energy? a. heating with a flame b. settling the mixture for 20 minutes c. measuring mass from a balance beam d. adding more substance to the observed material

Answers

Another question on Chemistry

If a chemical change requires energy, which of the following could be the source of the energy?
a. heating with a flame
b. settling the mixture for 20 minutes
c. measuring mass from a balance beam
d. adding more substance to the observed material