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Bumek [7]
2 years ago
6

Cities are measurably hotter than the surrounding suburbs

Chemistry
2 answers:
blondinia [14]2 years ago
7 0
There are also more heat absorbing surfaces - concrete roads, sidewalks, buildings all retain heat
abruzzese [7]2 years ago
5 0
 cities have factories , more people and no water around .
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The formula H2O2 is an example of *
saveliy_v [14]

Answer: Molecular formula

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

Ionic formula is the simplest chemical formula which depicts the whole number of atoms of each element present in an ionic compound.

Molecular formula of hydrogen peroxide is H_2O_2. Empirical formula of hydrogen peroxide is OH.

8 0
2 years ago
How can you tell whether a fat contains primarily saturated or unsaturated fatty acids?
Romashka-Z-Leto [24]
In terms of physically observing it, if the substance is a lions based substance, like oil or margarine, depending on the state, this will inform how well the hydrocarbons can pack together well or not, or will there be bends in the ring preventing the molecules from packing well.

Liquids are unsaturated
Solids are saturated.
3 0
3 years ago
1.42 mol sample of neon gas at a temperature of 13.0 °C is found to occupy a volume of 25.5 liters. The pressure of this gas sam
Dima020 [189]

Answer: 996 mmHg

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at NTP, weighs equal to the molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

According to the ideal gas equation:

PV=nRT

P = Pressure of the gas = ?

V= Volume of the gas = 25.5 L

T= Temperature of the gas = 13°C = (273+13) K  = 286K

R= Gas constant = 0.0821 atmL/K mol

n=  moles of gas= 1.42

P=\frac{nRT}{V}=\frac{1.42\times 0.0821\times 286}{25.5}=1.31atm=996mmHg      (760mmHg=1atm)

Thus pressure of this gas sample is 996 mm Hg.

3 0
3 years ago
Pls help me with this
liubo4ka [24]

Answer:

silver

5/20

=0.25.................

6 0
1 year ago
Read 2 more answers
Show chemical equation for the reaction of water
cricket20 [7]

Explanation:

2H2(g) + O2(g) → 2H2O(l )

3 0
2 years ago
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