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pogonyaev
3 years ago
7

What kind of air do winds coming from land masses bring?

Chemistry
2 answers:
Ludmilka [50]3 years ago
8 0
Low air pressure cause it was on my test last year
Nataly [62]3 years ago
7 0
It’s Dray air because yes
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How many moles are in 75 grams of Cl?
laila [671]

Answer:

1.06 mol  

Explanation:

\text{Moles of Cl}_{2} = \text{75 g Cl}_{2}\times \dfrac{\text{1 mol Cl}_{2}}{\text{70.91 g Cl}_{2}} = \text{1.06 mol Cl}_{2}

7 0
3 years ago
In chemistry lab student is determining the salinity of seawater using a conductivity meter. The student made standards of NaCl
dimaraw [331]

Answer:

a. is an excel document. i uploaded as an attachment

b. concentration = 0.327

Explanation:

in the graph i uploaded for answer a, the x variable is conductivity,  while the y variable is % salinity.

the calculated regression line was calculated using excel =

y = 0.057655X - 0.00891

for answer part b,

we take x = 5.82

when we put this into the y formular

y = 0.057655(5.82) - 0.00891

y = 0.3355521 - 0.00891

y = 0.3266421

this is ≈ 0.327

in conclusion, using the standard curve, the concentration of unknown salt is 0.327. the % salinity = 0.327

6 0
3 years ago
Which of the following chemical reactions is an oxidation-reduction reaction?
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C. N₂ + 3H₂ → 2NH₃
In a redox, or oxidation-reduction, reaction, one of the reactants must be reduced, which means its oxidation number decreases, while the other reactant must be oxidized, which means its oxidation number increases. The oxidation number of nitrogen in the reactants is 0 and is -3 in the products, so it is reduced. Similarly, the oxidation number of hydrogen is 0 in the reactants but it is +1 in the products.
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Which reaction is endothermic
anyanavicka [17]
The second one is endothermic as endothermic reactions require energy for the reaction to take place.
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4 years ago
Electromagnetic waves consist of
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Electromagnetic consists of both electrical and magnetic fields so D. :)
3 0
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