Examples of gases that can be found at home include carbon monoxide, chlorine, ammonia, hydrogen, nitrogen, and sulfur oxides.
In conclusion, carbon monoxide is gotten when we burn wood, charcoal, fuel, etc.
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The is Answer is air
B. The number of electrons ranges from 1 to 3.
C. The number of neutrons ranges from 0 to 2.
D. The number of protons ranges from 0 to 2.
The correct answer is C.
A substance is said to exhibit isotopy if the number of proton and neutron in the nucleus of the atom differs, whille the number of proton and electron are the same. Hydrogen has three isotopes and each of the isotopes has different number of neutron. Hydrogen 1 has no neutron but have 1 proton, hydrogen 2 has 1 neutron and 1 proton and hydrogen 3 has 1 proton and 2 neutrons.
Answer:
6) V 7) M 8) V 9) D 10) D 11) M 12) D 13) V
Explanation:
Volume- cm^3, ml, etc.
Mass- g/cm^3, g/ml, etc.
Density- g, kg, etc.
Answer:
The specific heat capacity of the metal is approximately 0.3903 J/(g·°C)
Explanation:
The mass of the sample of the unknown metal, = 134.0 g
The temperature to which the metal is raised, = 91.0°C
The mass of water into which the mass of metal is placed, = 125 g
The temperature of the water into which the metal is placed, = 25.0°C
The final temperature of the water, = 31.0°C
The specific heat capacity of water, = 4.184 J/(g·°C)
The specific heat capacity of the metal =
Therefore, by the first laws of thermodynamics we have;
The heat transferred = Heat supplied by the metal = Heat gained by the water
The heat transferred, ΔQ, is given as follows;
ΔQ = ××( - ) = × ×( - )
125 × 4.184 × (31 - 25) = 134 × × (91 - 31)
∴ = (125 × 4.184 × (31 - 25))/(134 × (91 - 31)) ≈ 0.3903 J/(g·°C)
The specific heat capacity of the metal = ≈ 0.3903 J/(g·°C)
Answer:storms high winds and water pools
Explanation:
Answer: long-range forecasts.
(2) Cu(s) + 2AgNO3(aq) ==>2Ag(s) + Cu(NO3)2(aq)
(3) 2H2(g) + O2(g) ==>2H2O(l)
(4) KOH(aq) + HCl(aq) ==>KCl(aq) + H2O(l)
Answer : The correct option is, (1)
Explanation :
The option (1) reaction is an example of decomposition reaction because in this reaction the larger compound, calcium carbonate decomposes into smaller molecule, calcium oxide and carbon dioxide.
Decomposition reaction : It is a type of reaction in which a larger compound decomposes into a smaller molecule or elements.
The option (2) reaction is an example of single displacement reaction because in this reaction the most reactive metal, copper displace the less reaction metal, silver.
The option (3) reaction is an example of combination reaction because in this reaction two reactants, hydrogen and oxygen react to give a single product as water.
The option (4) reaction is an example of double displacement reaction because in this reaction a positive cation and a negative anion of two reactants exchange their places to give two new products.
Hence, the correct option is, (1)