All categories

3 years ago

Rust forms when the iron is exposed to water and oxygen. True False

Chemistry

2 answers:

Montano1993 [528]3 years ago

8 0

True

explanation:

i looked it up

ANTONII [103]3 years ago

8 0

Answer: true

Explanation:

You might be interested in

20 poll

aleksley [76]

Answer: n=15.56moles

Explanation:

PV = nRT

where

P is pressure in atmospheres

V is volume in Liters

n is the number of moles of the gas

R is the ideal gas constant = given as (0.0821L -atm/k-mol

PV = nRT

n= PV/RT

n= (1.5 X 230)/ (0.0821 X 270)

n= 15.56 moles

5 0

4 years ago

The contents of a Helium ballon are in which phase? A. Solid B. Plasma C. Liquid G. Gas

cluponka [151]

Helium is stable compound. exists in gaseous state. the answer is gas

6 0

4 years ago

Referring back to question 6 above, in the TLC plate on the left the mobile solvent phase was ethyl acetate, in the plate on the

iren2701 [21]

Answer:

Polarity is a measure of molecule's electrical charge which means that molecule or it's groups can have a dipole moment and also make hydrogen bonds.

Explanation:

So in terms of polarity methanol is more polar then ethyl acetate due to it's higher dipole moment and that it is a stronger hydrogen bond acceptor and also can be a hydrogen bond donor. So if we add methanol to the elutioning system it becomes more polar because and our compound moves faster on tlc due to methanol providing some more hydrogen bonds to it and increasing dipole-dipole interactions.

3 0

3 years ago

Is adding zinc to hydrogen chloride a chemical or physical change

BlackZzzverrR [31]

That is a chemical change.. Hope I helped!

8 0

3 years ago

Read 2 more answers

Classify the following dienes and polyenes as isolated, conjugated, cumulated, or some combination of these classifications.

lawyer [7]

Answer:

cycloocta-1,4-diene- isolated double bond

cycloocta-1,3-diene- conjugated double bond

cyclodeca-1,2-diene- cumulated double bond

cycloocta-1,3,5,7-tetraene- conjugated double bond

cyclohexa-1,3,5-triene (benzene) - conjugated double bond

penta-1,2,4-triene- cumulated and conjugated double bond

Explanation:

A conjugated double bond is a system that contains alternate double and single bonds. It is renowned for its unusual stability.

A cumulated double bond is a double bond system involving about three atoms e.g C=C=C.

An isolated double bond is a system of double bonds separated by more than one single bond.

8 0

4 years ago