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wolverine [178]
3 years ago
13

PLZ ANSWER IN THE NEXT 24 HOURS MANY POINTS!!!!!!!!

Chemistry
2 answers:
kupik [55]3 years ago
8 0

Answer B

Explanation:

hereI wpould put it on t

Katen [24]3 years ago
3 0

Answer:

Ununennium.

Explanation:

Ununennium, also known as <em>eka-francium</em> or <em>element 119</em>, is the hypothetical chemical element with symbol <em>Uue</em> <em>and atomic number 119. </em> It's Mass number is [315] (predicted), as we as it is existing on the periodic table hence its symbol: <em>Uue</em>

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How many moles are in 25.0 grams of KMnO4?
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OleMash [197]

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I hope this help

Mark me brainliest

8 0
3 years ago
The enthalpy of combustion of hard coal averages -35 kJ/g, that of gasoline, 1.28 x 105 kJ/gal. How many kilograms of hard coal
Ganezh [65]

Answer:

3.657 kg

Explanation:

Given:

Enthalpy of combustion of hard coal = -35 kJ/g

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now,

The heat provide 1 gallon of gasoline provide =  1.28 × 10⁵ kJ

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or

1 kJ of heat is provided by (1/35) gram of hard coal

therefore,

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or

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3 0
3 years ago
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