1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BaLLatris [955]
3 years ago
7

Scientists use the chemical and physical properties of matter to differentiate substances. Which of the following is a chemical

property?
(A) A starch sample turns blue when introduced to iodine
(B) Gold's property of malleability allow it to be shaped into a ring.
(C) Salts exhibit electrical conductivity.
(D) A metal is identified by its density.
Chemistry
2 answers:
emmainna [20.7K]3 years ago
5 0

Answer:

C

Explanation:

Im pretty sure its C, since it becomes a whole other thing, which what chemical property is

Orlov [11]3 years ago
4 0

Answer:

a.) A starch sample turns blue when introduced to iodine

Explanation:

A is a chemical change whereas the other answers would be physical changes.

You might be interested in
Which of the following is not a organic compound, a -corn oil b -b r o m i n e c -m e t h a n e d- protein
Flura [38]
A corn oil. Because oil is treated with a solvent. After that it is refined which gets rid of free fatty acids. Finally, it is sent through steam distillation to get rid of volatile organic compounds.
6 0
4 years ago
Read 2 more answers
You and your friend are pushing a bin of books in the same direction. You are pushing with force of 10 N and your friend is push
Mrac [35]
It is 5n , that’s it the difference between the 10n and the 15 n
3 0
3 years ago
Read 2 more answers
1.A space shuttle's wings are useless as it travels around the exosphere. Explain, in your own words, why the wings are so usele
Andrews [41]

Thrust acts on the spacecraft and propels in the space.

<h3>How space shuttles move?</h3>

1. The force created by the shuttle's engines in expelling the burning fuel produces an equal thrust in the opposite direction. This thrust acts on the spacecraft and propels in the space.

2. The thermosphere and the stratosphere are our hottest atmosphere layers because these two layers are present near the sun as compared to other layers of atmosphere.

3. When the meteors hit the atmosphere, meteors rub against air particles and create friction which is heating the meteors. The heat vaporizes most meteors, creating what we call shooting stars.

Learn more about atmosphere here: brainly.com/question/24925283

6 0
3 years ago
Which of the following sets are isoelectronic (i.e., have the same number of electrons)? i. Br-, Kr, Sr2+ ii. C, N-, O2- iii. Mg
il63 [147K]

Answer:

ii. C,\ N^-,\ O^{2-}

Explanation:

Isoelectric species are the species which have same number of electrons.

From the given options:-

C,\ N^-,\ O^{2-} are the isoelectric species.

All the three species have same number of electrons which is equal to 6.

Carbon has 6 electrons.

N^- has 6 electrons.

O^{2-} has 6 electrons.

8 0
3 years ago
You are given two unknown acids, HX and H2Y, and two values for Ka, 1x10^-7 and 1x10^9. You know that X is a much more electrone
Elena L [17]

Answer:

.

Explanation

In HX , X is more electronegative than Y so HX will ionise more because of  ionic bond between H and X . On the other hand H₂Y will be less polar as compared to HX so it will ionise to a lesser extent . Hence Ka will be more for HX . Ka represents the degree of ionisation of acid . Higher the ionisation , higher is the value of Ka . H₂Y which is less polar will ionise less and hence it will have lesser value of Ka .

Hence H₂Y will have value of 10⁻⁷ and HX will have value of ka equal to 10⁹ .

6 0
4 years ago
Other questions:
  • Which chemical is least likely to undergo a chemical reaction
    9·1 answer
  • A compound has a chemical composition of 97.6 g carbon, 4.9 g hydrogen, 52 g oxygen, 45.5 g nitrogen. What is the empirical form
    15·1 answer
  • What is the difference between a amalgam and alloy.
    15·1 answer
  • The outside temperature is 35C, what is the temperature in K? K=274.15+ c.
    6·1 answer
  • a 58.215 g sample of a pure metal is brought to 99.0c and added o 41.202 g of water at 21.5c in a calorimeter. if the metal and
    10·2 answers
  • Whag is the answer. please i need help​
    6·1 answer
  • Is palladium a metal nonmetal or metalloid
    11·2 answers
  • What is the generic name of the drug <br> Ritalin
    12·2 answers
  • Household ammonia used for cleaning contains about 10 g (two significant figures) of NH3 in 100 mL (two significant figures) of
    11·1 answer
  • 4.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!