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
Burka [1]
3 years ago
15

Carbon (C) and hydrogen (H) are pure substances. Each is made of only one type of atom, but carbon atoms are different from hydr

ogen atoms. Carbon and hydrogen chemically combine to form methane (CH4)
Based on this information,


A.
carbon, hydrogen, and methane are all compounds.
B.
methane is an element and carbon and hydrogen are compounds.
C.
carbon and hydrogen are elements and methane is a compound.
D.
carbon, hydrogen, and methane are all elements
Physics
2 answers:
xeze [42]3 years ago
6 0

the answer to this question is c


eimsori [14]3 years ago
5 0
C is the correct answer.

all substances found on the periodic table are elements by definition. anything that is created using elements, such as methane, carbon dioxide, or water, are all compounds.
You might be interested in
From the top of the engineering building, you throw a ball vertically upward. the ball strikes the ground 4.00 s later. the engi
anastassius [24]
Equations of the vertical launch:

Vf = Vo - gt

y = yo + Vo*t - gt^2 / 2

Here yo = 35.0m
Vo is unknown
y final = 0
t = 4.00 s
and I will approximate g to 10m/s^2

=> 0 = 35.0 + Vo * 4 - 5 * (4.00)^2 => Vo = [-35 + 5*16] / 4 = - 45 / 4 = -11.25 m/s

The negative sign is due to the fact that the initial velocity is upwards and we assumed that the direction downwards was positive when used g = 10m/s^2.

Answer: 11.25 m/s


5 0
3 years ago
Read 2 more answers
A series circuit consists of a 100-ω resistor, a 10.0-μf capacitor, and a 0.350-h inductor. the circuit is connected to a 120-v
Tpy6a [65]
Current will be I=\dfrac{V_{rms}}{Z}=\dfrac{V_{rms}}{\sqrt{ R^{2}+(X_{C}-X_{L})^{2}}}\\where~X_{c}=\dfrac{1}{j.\omega .C}~and~X_{L}=j.\omega.L~where~\omega=2.\pi f~and~f=60Hz
now just pluf in the values and Voila..
7 0
3 years ago
two thermometers, calibrated in celsius and fahrenheit respectively, are put into a liquid. the reading on the fahrenheit scale
Viefleur [7K]
Two thermometers, calibrated in celsius and fahrenheit respectively, are put into a liquid. the reading on the fahrenheit scale is four times the reading on the celsius scale. the temperature of the liquid is:

6 0
3 years ago
What is the mass of an object that has a weight of 80.0 N?
Ira Lisetskai [31]

Explanation:

SUPONIENDO QUE LA ACELERACIÓN DE LA GRAVEDAD ES 9.80 m/s^{2}

USANDO LA SEGUNDA LEY DE NEWTON:

<em>m</em> = 80.0 N/9.80 m/s^{2} = 8.16 kg

4 0
3 years ago
Read 2 more answers
Three parachutists have the following masses: A: 50 kg, B: 40 kg, C: 75 kg Which one has the greatest terminal velocity?
allochka39001 [22]

Answer:

A: 50 kg

Explanation:

5 0
3 years ago
Other questions:
  • (b) The speed of the vehicle is written as 90 km/h. State the speed in SI unit. Show your working in the space below.
    5·2 answers
  • In object of mass 30 kg is in freefall in a vacuum where there is no air resistance determine the acceleration of the object
    5·1 answer
  • How long will it take to go 150 km [E] traveling at 50 km/hr?
    12·2 answers
  • At one point in the circuit, there is an LED and a resistor in parallel with one another. If you measure the voltage drop across
    8·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    11·1 answer
  • A raft is made of 14 logs lashed together. Each log is 42 cm in diameter and a length of 6.4 m. 42% of the log volume is above t
    7·1 answer
  • Which of the following would increase friction?
    14·1 answer
  • What type of elastic force is present in the strings on a guitar?
    13·1 answer
  • Sound travels on air molecules.<br><br> True<br><br> False
    15·2 answers
  • As the wavelength of electromagnetic radiation increase
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!