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lutik1710 [3]
3 years ago
9

Which type of front is occurring at Point A on the map?

Chemistry
1 answer:
grin007 [14]3 years ago
5 0
Your answer would be A, a cold front

(Hope this is helpful)
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Tems11 [23]
2H2+O2----->2H2O. I hope this helps
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3 years ago
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A teacher places a cup of coffee onto an electronic balance at the front of the science laboratory. The teacher then adds three
motikmotik

Answer:

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4 0
2 years ago
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Magnesium reacts with Oxygen gas forming Magnesium oxide as shown;
LuckyWell [14K]
Molar mass:

O2 = 16 x 2 = 32.0 g/mol              Mg = 24 g/mol

<span>2 Mg(s) + O2(g) --->2 MgO(s) 
</span>
2 x 24.0 g Mg -------------> 32 g O2
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mass of O2 = 5.00 x 32 / 2 x 24.0

mass of O2 = 160 / 48

= 3.33 g of O2

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5 0
3 years ago
What is the pH difference of two samples if the concentration of [H+] ions is 1000-fold less in the second sample?
snow_tiger [21]
The correct answer is a. This is because the pH of a solution is defined as -log10(concentration of H+ ions). An inverse logarithmic scale such as this means that a solution with a lower concentration of H+ ions will have a higher pH than one with a higher concentration. Therefore we know that the pH of the second sample will be higher than the first.

Since the logarithmic scale has the base 10, a change by 1 on the scale is a consequence of multiplication/division of the H+ concentration by a factor of 10. As the scale is inverse, this means that a decrease of concentration by factor 1000 is equivalent to increasing the pH by (1000/10) = 3.
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3 years ago
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Karolina [17]

It is a covalent bond

3 0
3 years ago
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