subject

Chemistry, 17.10.2020 14:01 edith47

What is a system? A. An isolated piece of the world
OB. A liquid in which reactions take place
O C. A piece of scientific equipment
O D. A technique for recording data

ansver

Answers: 2

Show answers

Another question on Chemistry

question

Chemistry, 22.06.2019 13:00

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

Answers: 1

question

Chemistry, 22.06.2019 13:30

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum

Answers: 1

question

Chemistry, 22.06.2019 17:00

What is the approximate vapor pressure when the gas condenses at 70 degrees celsius

Answers: 2

question

Chemistry, 22.06.2019 21:40

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?

Answers: 3

You know the right answer?

What is a system? A. An isolated piece of the world
OB. A liquid in which reactions take plac...

Questions

question

Mathematics, 18.02.2020 04:23

The attendance at a seminar in year 1 was 500. In year 2, the attendance changed by 100. What was the percent change in attendance...

question

English, 18.02.2020 04:23

To speak truly, few adult persons can see nature. Which sentence from Nature best supports Emerson’s claim? a. I am glad to the brink of fear. b. Natu...

question

Mathematics, 18.02.2020 04:23

John took 3 exams so far this semester. He scored 45, 65 and 80 on those 3 exams . What score does he need on the fourth exam to average 70 or more on...

question

Mathematics, 18.02.2020 04:23

If 30% of X=60 than x=?...

question

Physics, 18.02.2020 04:23

An ideal gas contained in a piston–cylinder device undergoes an isothermal compression process which begins with an initial pressure and volume of 120...

question

Mathematics, 18.02.2020 04:23

Gerbils can develop gastrointestinal tract issues as they get older that may cause severe diarrhea and dehydration from the diarrhea. A researcher wis...

question

Mathematics, 18.02.2020 04:23

What is the value of A? The table represents the multiplication of two binomials 3x 15 -Х Т. А в 1 2 с 10 L...

question

History, 18.02.2020 04:23

Texas ranchers had plenty of cattle, but the best markets were in the North and the East. a. true b. false...

question

Social Studies, 18.02.2020 04:24

Column A textbooks tuition on-campus food plan Column B gas money parking pass car repair...

question

English, 18.02.2020 04:24

What does the author most likely mean in line 18 when he or she states that "love... paints a phoenix to her eyes"? What is the figurative...

question

Biology, 18.02.2020 04:24

Mitosis and meiosis always differ in regard to the presence of a. chromatids. b. homologs. c. bivalents. d. centromeres. e. spindles....

question

Business, 18.02.2020 04:24

A recent survey of online shoppers asked them to indicate the primary reason they shop via the Internet. The table summarizes responses by reason and...

question

English, 18.02.2020 04:24

12. The Ghost of Christmas Yet to come does not speak, yet his tin very meaningful. What does Scrooge learn from the conversation the Exch...

question

Mathematics, 18.02.2020 04:24

The central limit theorem can be used to analyze round-off error. Suppose that the round-off error is represented as a uniform random variable on [−1...

question

History, 18.02.2020 04:24

Write a sentence about Jefferson administration that uses the term customs duty...

question

Social Studies, 18.02.2020 04:24

Edit the following by selecting the correct spacing and margin arrangement for the first sentence of a paragraph: The mating and social behaviors of m...

question

Social Studies, 18.02.2020 04:24

Which of the following is the cause for the decline of the empire of Ghana? A. confiscation of land by Mali B. loss of trade with neighbors C. drought...

question

Computers and Technology, 18.02.2020 04:24

What is the numeric range of a 16-bit twos complement value? A 16-bit excess notation value? A 16-bit unsigned binary value?...

question

Mathematics, 18.02.2020 04:24

A sequence is defined recursively by the following rules: f(1)=3 f(n+1)=2⋅f(n)−1 Which of the following statements is true about the...

question

Physics, 18.02.2020 04:24

The current in a wire is 4.00A. How much time is needed for 1 mole of electrons (6.02×1023 electrons) to pass a point in the wire?...

More questions: Chemistry Another questions

Questions on the website: 13722363