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
Helen [10]
3 years ago
5

The table lists the chemical formulas or symbols of a few common substances. Which two substances are compounds? A) aluminum and

iron B) iron and sodium chloride C) carbon dioxide and aluminum D) sodium chloride and carbon dioxide
Chemistry
2 answers:
katrin [286]3 years ago
7 0
D is the correct answer

every other option contains an element
Tatiana [17]3 years ago
7 0

The answer is D because both sodium chloride and carbon dioxide contain more than one element. This is indicated by their formulas, which contain the symbols for two elements each.

You might be interested in
What is an example of an interest leading to a career choice
Leno4ka [110]

Answer:

An example of these would be "I have always been interested in cars so I became a auto mechanic." or "I have always been interested in cars so I decided to work at a car dealership."

Explanation:

A big interest that you have that leds you to pick a job related to that interest.

4 0
3 years ago
Read 2 more answers
You put two open cans of soda on the table. You took one can from the refrigerator and the other from your car. When you open th
sladkih [1.3K]
The correct answer from the choices given is the last option. The can from the <span> car will lose the carbon more quickly because there are fewer solute–solvent collisions. The can in the car has a lower temperature than the one in the refrigerator. At low temperature, the solubility of carbon dioxide in the liquid decrease therefore particles would tend to be in the vapor phase and escape from the liquid.</span>
6 0
3 years ago
If you add the same amount of heat to two different substances, will they both change phase?
lesantik [10]

Answer:

It depends on their melting and/or their boiling points, because the heat provides the particles with kinetic energy to break the electrosatic bonds in the substances, which can differ in strength

Explanation:

8 0
2 years ago
Which element has the lowest first ionization energy? (F), (Li), (Fr), (Rb)?
Mariulka [41]

Answer:

Fr

Explanation:

Francium (Fr) has the lowest ionization energy, with a value of 4.0727eV. This ionization energy increases as one advances in a period, being greater in the group of nonmetals.

6 0
2 years ago
A 52.0 g of Copper (specific heat=0.0923cal/gC) at 25.0C is warmed by the addition of 299 calories of energy. find the final tem
Leto [7]

Answer : The final temperature of the copper is, 87.29^oC

Solution :

Formula used :

Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})

where,

Q = heat gained  = 299 cal

m = mass of copper = 52 g

c = specific heat of copper = 0.0923cal/g^oC      

\Delta T=\text{Change in temperature} 

T_{final} = final temperature = ?

T_{initial} = initial temperature = 25^oC

Now put all the given values in the above formula, we get the final temperature of copper.

299cal=52g\times 0.0923cal/g^oC\times (T_{final}-25^oC)

T_{final}=87.29^oC

Therefore, the final temperature of the copper is, 87.29^oC

4 0
3 years ago
Other questions:
  • Which element at stp is a liquid that conducts electricity well?
    15·1 answer
  • The formula for the ammonium ion
    12·2 answers
  • What is the value of n in CH3(CH2)nCH3 if the name of the hydrocarbon is heptane
    15·2 answers
  • the movement of heat through touching molecules is called: A. conduction B. convection C. radiation​
    7·1 answer
  • According to the law of universal gravitation, any two objects are attracted to each other. The strength of the gravitational fo
    8·2 answers
  • What is the angle between two of the phosphorus-chlorine bonds in the phosphorus tetrachloryl (PCl+4) ion?
    5·1 answer
  • Determine the Concentration of the Unknown Strong Acid
    10·1 answer
  • How many subatomic particles are in the NUCLEUS of a neutral atom of Beryllium?
    15·2 answers
  • Write anode and cathode in Zn-Ag galvanic cell​
    13·1 answer
  • ______ fats contain no carbon-carbon double bonds, whereas ______ fats contain carbon-carbon double bonds.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!