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
Nookie1986 [14]
2 years ago
14

Which best describes a compound such as magnesium oxide? an impure substance that is made up of two elements a mixture of two un

common substances a mixture of two common elements a pure substance that is made up of different elements
Chemistry
2 answers:
AURORKA [14]2 years ago
8 0

Answer:

A pure substance that is made up of different elements

Explanation:

kirza4 [7]2 years ago
6 0

Answer:

<u>D. a pure substance that is made up of different elements</u>

Explanation:

Step-by-step explanation:

There are two types of pure substances: elements and compounds.

Elements are made up of only one type of atom. And compounds are pure substances, that are made up of more than one type of element. Like - magnesium oxide. It is a compound of a metal with a non-metal and is held together with ionic bonds.

You might be interested in
Helppppppppp please please
disa [49]
C because seeps into earths to replenish earths groundwater
3 0
2 years ago
How many oxygen atoms are there in the following compound: 2HNO3<br> 3<br> 5<br> 6<br> 12
Fudgin [204]

Answer:

6

Explanation:

There is 2 of the coumpond, in one compound, there are 3 oxygens. But when there are two, it is 6.

7 0
3 years ago
Read 2 more answers
A force interaction requires at least a(n)
Anastaziya [24]
C.) Action force unless it has potential/stored enerygy

8 0
3 years ago
Read 2 more answers
Select the correct formula for the polyatomic ion.
Helga [31]
The poly atomic ion formula for ammonium would be NH4+
7 0
3 years ago
Read 2 more answers
348 g of water starting at 4.0°Celsius is heated until his temperature is 37°Celsius. Calculate the amount of heat energy needed
attashe74 [19]

Answer:

48.049 kJ or 48049 J

Explanation:

Hello again.

So we know the formula q = mc\Delta t. c is the heat capacity but this time, it is not given. However, water has a very well known heat capacity which is 4.184 J/(g°C). This is in fact the number we refer to a calorie which is the amount of energy you burn that can raise the temperature of 1g of water by 1°C. So, plugging in values, you get the above. But double check if I am wrong.

7 0
2 years ago
Other questions:
  • What volume and mass of steam at 100. °C and 1.00 atm would release the same amount of energy during condensation as 100. cm^3 o
    15·1 answer
  • Chromium-51 has a half life of 27.70 days. How much will be left after 166.2 days if
    10·1 answer
  • The table below shows the dimensions of two colored cubes. Dimensions of Cubes
    5·2 answers
  • In order to be considered science, something must be
    6·1 answer
  • in what ways does solar energy help or harm the enviornment? give a couple of examples. if it hurts the evironment, explain how
    10·1 answer
  • Please help with the last problem!
    9·2 answers
  • Which statement about the half-life of a radioactive sample is true?
    11·2 answers
  • How does carbon cycle
    13·2 answers
  • The proton number of barium (Ba) is 56. It is in Group II of the periidic table how many electrons would you expect a barium ato
    6·1 answer
  • Which of the following is an example of climate?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!