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
Black_prince [1.1K]
3 years ago
8

Select the two statements that are TRUE about compounds

Chemistry
1 answer:
patriot [66]3 years ago
4 0

a) a compound always contains at least 2 elements

is the answer

You might be interested in
What pressure (in atm) will 0.44 moles of co2 exert in a 2.6 l container at 25°c?
Lilit [14]
We can use the ideal gas law equation to find the pressure 
PV = nRTwhere 
P - pressure 
V - volume  - 2.6 x 10⁻³ m³ 
n - number of moles - 0.44 mol
R - universal gas constant - 8.314 Jmol⁻¹K⁻¹
T - temperature - 25 °C + 273 = 298 K
substituting the values into the equation,
P x 2.6 x 10⁻³ m³  = 0.44 mol x 8.314 Jmol⁻¹K⁻¹ x 298 K
P = 419 281.41 Pa
101 325 Pa is equivalent to 1 atm 
Therefore 419 281.41 Pa - 1/ 101 325 x 419 281.41 = 4.13 atm
Pressure is 4.13 atm
6 0
3 years ago
An order is received for ALternatGEL 30 cc PO q4h, ranitidine 150 mg PO bid, enteric-coated aspirin 325 mg PO qd, and tetracycli
kaheart [24]

Answer:

Tetracycline and antacid should not be given together.

Explanation:

In the given order, tetracycline and antacid are given together. The antacid is in the aspirin. The tetracycline and antacid should not be used together because the presence of antacid will suppress the effectiveness of the tetracycline. This is because antacid contains chemical compounds such as sodium bicarbonate which can interact with the tetracycline.

7 0
3 years ago
What three tests must all theories pass to be considered a "proven" theory?
VladimirAG [237]

 In order to become a scientific theory the three categories that it must pass are the following: 


1) Can the phenomena be recreated in a laboratory setting? 


2) Can variables be changed, yet still result in like observations? 


3) Is the phenomena truly natural or was it the result of a man-made force enacting upon it?

7 0
3 years ago
A scientist makes several observations, develops a question, researches what is known about the question, forms a hypothesis, an
Alex73 [517]
The scientist should make a new hypothesis and do a new experiment! That is what I say!
8 0
3 years ago
The Law of Conservation of Mass states that mass is neither created nor destroyed during cher
dmitriy555 [2]
The answer is true:)))))))))))))))
8 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the number-average molecular weight for a poly(vinyl chloride) for which the degree of polymerization is 21500.
    15·1 answer
  • Which of the following particles of atoms will, when added, only change the overall charge of
    7·1 answer
  • A mole or fraction of a mole represents a _______number of atoms or molecules.
    6·2 answers
  • Is -280 f degrees hot or cold
    13·2 answers
  • What will a red giant that has a low mass likely become?​
    9·1 answer
  • Is scrap metal pieces an example of a pure substance or a mixture ?
    15·2 answers
  • What scientist said we cannot predict an exact position of<br> atoms.
    12·1 answer
  • 5 Boron has two types of atom, shown below.
    8·1 answer
  • Look at the diagram. Which shows the correct arrangement of electrons in a hydrogen chloride molecule?
    9·2 answers
  • When a bunsen burner is properly adjusted, what should the flame look like?.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!