subject

Chemistry, 25.09.2019 05:50 61497

Which pure substance can be classified as an element? -h2 -no3 -nacl -h2so4

ansver

Answers: 1

Show answers

Another question on Chemistry

question

Chemistry, 21.06.2019 18:30

Two things that biomedical has invented or innovated

Answers: 1

question

Chemistry, 22.06.2019 18:30

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of

Answers: 2

question

Chemistry, 22.06.2019 22:40

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent

Answers: 1

question

Chemistry, 23.06.2019 05:20

Deferentiate volatile and non volatile acid

Answers: 1

You know the right answer?

Which pure substance can be classified as an element? -h2 -no3 -nacl -h2so4...

Questions

question

Business, 27.06.2019 13:10

Ken and suzy were interested in trading in their four-door sedan for a sportier convertible car. they had successfully negotiated a straightforward tr...

question

Biology, 27.06.2019 13:10

Sb-50 on a recreational boat, the location of emergency equipment (life jackets, fire extinguishers, visual distress signals, radio, etc.) should be r...

question

Business, 27.06.2019 13:10

Seven years ago, elise damato started a business specializing in dog walking and dog grooming. after the first year, her pet food supplier started giv...

question

Mathematics, 27.06.2019 13:10

Find a parametric representation for the surface. the part of the sphere x2 + y2 + z2 = 16 that lies between the planes z = −2 and z = 2. (enter your...

question

Physics, 27.06.2019 13:10

Amagnet is hung by a string and then placed near a wire as shown. when the switch is closed, the magnet rotates such that the end of the magnet moves...

question

Mathematics, 27.06.2019 13:10

Carlo rode his bike from his house to his friend kevin’s house from there he rode to a video game store then he road 3.2 km from the video game store...

question

English, 27.06.2019 13:10

"no, i can’t. i mean, i could tell you a few things. i try to keep up the habit, and it is a habit to try to write every day. i try to write in the mo...

question

Chemistry, 27.06.2019 13:10

Ateaspoon of powdered caffeine can be as deadly as a teaspoon of ricin. true or false...

question

History, 27.06.2019 13:10

Why is "grunts vocabulary primer" important to understanding the soldier's role in vietnam, the jobs they did and the changes in the soldiers themselv...

question

Social Studies, 27.06.2019 13:10

What sort of data did elmo's library search probably reveal to prompt his decision...

question

English, 27.06.2019 13:10

How does the author's discussion of different writers' vocabularies contribute to his ideas about how readers should judge the quality of a writer's w...

question

Chemistry, 27.06.2019 13:10

1. using two to three sentences, summarize what you investigated and observed in this lab. 2. astronomers use a wide variety of technology to explore...

question

English, 27.06.2019 13:10

Read this section of the text: as you might imagine, catching flying insects requires a great deal of agility and speed. what does agility mean in th...

question

Biology, 27.06.2019 13:10

In what situation can a harmful deletion in a chromosome persist in a population? if it is homozygous if a transposon replaces the deleted region if...

question

History, 27.06.2019 13:10

What is the tone of the author toward the patrons of the stonewall inn? cite at least one example to support your answer....

question

Spanish, 27.06.2019 13:10

Other than languages what is one major difference between spanish language telenovelas and us soap opras...

question

Mathematics, 27.06.2019 13:10

Trevor has a $1000 bond with a 4.5% coupon. trevor purchased this bond for $965. what is the yield of this new bond?...

question

Physics, 27.06.2019 13:10

Scientists have recently discovered one the smallest stars on record. how long will this star lastcompared to a larger star formed at the same time? o...

question

History, 27.06.2019 13:10

What types of details should a draft of a research-based essay contain? check all that apply. paraphrased information information from questionable s...

question

Chemistry, 27.06.2019 13:10

Calculate the relative molecular mass of calcium phosphate, ca3(po4) 2...

More questions: Chemistry Another questions