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
Korolek [52]
2 years ago
14

What is the name for a substance that cannot be separated into simpler substances ?

Chemistry
2 answers:
Mnenie [13.5K]2 years ago
7 0
Elements!
Compounds, alloys and mixtures all are made up of many different elements
Delicious77 [7]2 years ago
4 0

Answer:a element

Explanation:

You might be interested in
Use complete sentences to differentiate between acids and bases on the basis of taste. Give an example of each type.
FinnZ [79.3K]

<span>Acid is a molecule capable of donating hydrogen ion and they form aqueous solutions with a sour taste while base is a substance that accepts proton from proton donor and in aqueous solution, they have an astringent or bitter taste. Moreover, a good example for base is sodium hydrogen carbonate as baking soda or baking powder and for acid, the most common example is the acetic acid or vinegar.</span>

3 0
3 years ago
Read 2 more answers
What heat is liberated in the formation of 10.0 grams of sulfur hexafluoride, SF6, from the elements sulfur and fluorine?
tensa zangetsu [6.8K]

Answer:

Q=-76.7kJ

Explanation:

Hello,

In this case, for such formation of sulfur hexafluoride, the standard enthalpy of formation is -1220.47 kJ/mol (data extracted from NIST database). Next, we compute the moles in 10.0 grams of sulfur hexafluoride as shown below:

n_{SF_6}=10.0gSF_6*\frac{1molSF_6}{146.06 gSF_6}=0.0685mol

Next, for the given energy, we compute the total heat that is liberated:

Q=-1220.47\frac{kJ}{mol}*0.0685 mol\\\\Q=-76.7kJ

Finally, we conclude such symbol has sense since negative heat is related with liberated heat.

Best regards.

8 0
3 years ago
A mutation can be defined as a change in an organism's
larisa86 [58]

Answer:

Genotype

Explanation:

A mutation is the change is DNA, aka the genotype

4 0
2 years ago
_______________________ turns blood to cherry red and produces a patchy, pinkish color in the lividity of the corpse.a. Carbon m
IgorC [24]

Answer: a. Carbon monoxide

Explanation:

The carbon monoxide gas competes with the oxygen in the blood to occupy the binding affinity of the hemoglobin thus the blood changes it's color to cherry red.

In postmortem lividity, the body becomes discolored due to the effect of flow of blood from the interstitial tissues and suspended under the force of gravity. This can be seen on the dependent parts of the body and the position of body after death. The color of the postmortem lividity depends on the color of the hemoglobin.

In case of carbon monoxide poisoning the color of postmortem lividity appears to be cherry red as color of the hemoglobin is cherry red. Thus cherry red or dark pinkish patches appear in the corpse as lividity.

8 0
3 years ago
Which are forms of frozen water? Check all that apply. dew frost hail rain sleet
MariettaO [177]

When moist air cools below its dew point on a cold surface it forms dew. It is in the liquid state.

Rain is again a form of precipitation in which water is in the liquid state.

When air temperature is below freezing, the precipitation that results is referred to as frost. Hail is a form of precipitation in the ice balls whereas as sleet is a mixture of rain and snow.

Ans: Forms of frozen water- frost, hail and sleet

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of these objects converts light to chemical energy? four objects
    11·2 answers
  • Consider the reaction co(g)+nh3(g)âhconh2(g), kc=0.900 if a reaction vessel initially contains only co and nh3 at concentrations
    6·2 answers
  • What are the key characteristics of a combustion and redox reactions?
    10·1 answer
  • Calculate the number of moles of zinc that contain 4.50 x 1024 atoms?​
    11·1 answer
  • Some of the interrelated factors which affect polar ice are:
    12·2 answers
  • A stone weighs 105 lb in air. When submerged in water, it weighs 67.0 lb. Find the volume and specific gravity of the stone.
    15·1 answer
  • Helppppppp I have a brain fart ....
    6·1 answer
  • Which has the strongest intermolecular forces​
    13·2 answers
  • Elements found on the left side of the Periodic Table are known as
    14·2 answers
  • At the top of a hill, an athlete on a skateboard has X joules of mechanical energy. How much mechanical energy will she have at
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!