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
Phoenix [80]
3 years ago
6

What substance is a combination of different atoms

Chemistry
2 answers:
MrMuchimi3 years ago
7 0
I'm not suree.. is his science?
Angelina_Jolie [31]3 years ago
6 0
Sodium chloride ( sodium and chlorine )
Carbon dioxide ( carbon and oxygen )
You might be interested in
Based on the following reaction, determine how much heat is released if 500. grams of methane is combusted in excess oxygen: CH4
EastWind [94]

Answer:

- 13,150.6kJ

Explanation:

CH4 + 2 O2 ------> CO2 + 2 H2O ΔH= – 890 kJ

The ΔH is enthalpy change of combustion , which is the heat is either absorbed or released by the combustion of one mole of a substance.

ΔH=−890 kJ/mol (released in the combustion of one mole of methane)

using the molar mass  (in grams )of methane to get moles of sample

(237g × 1 mole of CH4)/16.04g=14.776 moles  of CH4

Since 1 mole produces 890 kJ of heat upon combustion, then 14.776 moles will produce

ΔH = 14.776moles of CH4 × 890kJ/1mole of CH4

=13,150.6kJ

Therefore ΔH = - 13,150.6kJ

3 0
3 years ago
What are the coefficients to balance the following equation?<br><br> ba+br2=babr2
kaheart [24]

Answer:

Its already balanced

Explanation:

Ba (barium) starts with and ends with 1. Br (bromine) starts with 2 and ends with 2.

6 0
3 years ago
Read 2 more answers
Which object represents a simple machine? A)battery B)pliers C)Match D)candle
Anna35 [415]
Battery represents a simple machine
6 0
3 years ago
Read 2 more answers
What would the volume of a gas be at 150c if had of volume of 693 ml at 45 c​
Vlad1618 [11]

Answer:

Explanation:

T1 = 150°C = (150 + 273.15)K = 423.15K

T2 = 45°C = (45 + 273.15)K = 318K

V1 = 693mL = 693cm³

Applying Charle's law, the volume of a given gas is directly proportional to is temperature provided that pressure remains constant.

V = kT

V1 / T1 = V2 / T2

693 / 423.15 = V2 / 318

V2 = (693 * 318) / 423.15 = 520.79cm³

The new volume of the gas is 520.79cm³

6 0
2 years ago
How could you determine if a tissue you are looking at could only be from the heart?
borishaifa [10]
You can determine it by paying attention to the unique characteristics that could only be found at heart's tissue, such as :

- looks striated or stripped
- The bundles are breached like tree but connected at both ends

hope this helps
6 0
3 years ago
Other questions:
  • Calculate the mass of MgCO3 precipitated by mixing 10.00 mL of a 0.200 M Na2CO3 solution with 5.00 mL of a 0.0450 M Mg(NO3)2 sol
    8·1 answer
  • A piece of balsa wood has a mass of 15.196 g and a volume of 0.1266 L. What is the density in g/mL?
    10·1 answer
  • 3. The following equation represents the reaction between N,
    8·1 answer
  • Given the following reaction: 3D(g) + E(g) + 2F(g) → 5G(g) + 4H(g)
    6·1 answer
  • I just need an advantage of disadvantage of Geothermal energy. I just need an advantage of Biomass and disadvantages of Biomass
    8·1 answer
  • The term “3 FeCI 2” in a balanced equation says
    13·1 answer
  • Which chemical symbols will complete the equation for this decomposition reaction
    8·1 answer
  • Which best identifies why the rusting of an iron nail in the presence of water and oxygen is an oxidation-reduction reaction?
    6·1 answer
  • the pressure on a 205 mL volume of gas is decreased from 985 mm hg to 615 mm hg while constant temperature is maintained, What i
    10·2 answers
  • Describe what bacteria are - their parts, how they can be good, how they can be bad, and the different types.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!