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
Leto [7]
3 years ago
15

If an unknown substance CANNOT be broken down into simpler substances, it is

Chemistry
1 answer:
lisov135 [29]3 years ago
5 0

The correct answer is b. an element

The explanation:

when the ELEMENT is define as substance that cannot be decomposed (broken down) into simpler substances by ordinary chemical means. Examples: gold, iron, carbon, hydrogen, oxygen, nitrogen

Ex: diamond will be broken into carbon as well.

and SUBSTANCE: Material composed of only one kind of matter throughout (same atoms or same molecules).

You might be interested in
Why do the protons identify the element and not the electrons or the<br> neutrons?
Lunna [17]
Protons identity the element because the number of protons gives us the atomic number of each element
4 0
2 years ago
How to balance the question?​
umka21 [38]

Answer:

CH4 + 2O2 —> CO2 + 2H2O

CH4 + 2O2

C = 1

H = 4

O = 2 ×2 = 4

__o_o___

CO2 + 2H20

C = 1

H = 2 × 2 = 4

O = 2 + 2 = 4

So ; 1 C , 4 H , 4 O

I hope I helped you^_^

4 0
2 years ago
A stream of surface water reaches a porous portion of sediment and seeps into the ground. This water eventually joins a large re
Fed [463]

The correct answer is - C. Hydrosphere; geosphere.

The hydrosphere is the sphere which contains all the waters on the planet Earth. The geosphere is the sphere that contains the solid rocky part of the Earth. When the water goes through the porous sediments and enters deeper into the ground, that means the we have an interaction of water and rocks. In other words, since the water is part of the hydrosphere, and the rocks are part of the geosphere, we have an interaction between the hydrosphere and the geosphere.

8 0
3 years ago
Read 2 more answers
Please help me with this chemistry question
aliina [53]

Answer:

A.

Explanation:

8 0
3 years ago
An extra-strength aspirin contains 0.500 g of aspirin. how many grains is this? (1grain=64.8mg)
Snowcat [4.5K]

By unit conversion, the aspirin contains 7.72 grains.

We need to know about unit conversion to solve this problem. The unit conversion can be used to convert a unit to another unit. It can be defined as

a = xb

where a is unit a, b is unit b and x is the constant of conversion.

From the question above, we know that

m = 0.5 gram

unit conversion

(1 grain = 64.8 mg)

Convert the unit conversion to 1 mg

1 grain = 64.8 mg

1/64.8 grain = 64.8/64.8 mg

1 mg = 1/64.8 grain

Convert the aspirin mass to grain

m = 0.500 g

m = 0.5 x 10³ mg

m = 0.5 x 10³ x 1/64.8 grain

m = 7.72 grain

Find more on unit conversion at: brainly.com/question/4158962

#SPJ4

8 0
11 months ago
Other questions:
  • A physical reaction is a process in which one or more reactants change into one or more products with different properties. Plea
    9·1 answer
  • Houses with carpet are much quieter than houses with tile or hardwood floors because of sound wave
    12·2 answers
  • In a chemical interaction 10 g of hydrogen chloride is added to 20 g of zinc to form 24 g of zinc chloride and a certain amount
    14·2 answers
  • How does the periodic table indicate the number of valence electrons element has?
    14·1 answer
  • What effect does shape and size have on an object's density?
    13·1 answer
  • A teen is making iced coffee and would like it sweeter but is unable to get the sugar to dissolve. What method could dissolve mo
    15·1 answer
  • How is boiling water different from burning gasoline?
    12·1 answer
  • A particular power source releases kinetic energy that is used to move giant
    12·2 answers
  • One atom of element A bonds with element E.
    9·1 answer
  • An element found in groups 3-12 of the periodic table is classified as a[n]
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!