Answer:
9028.8 J
Explanation:
The equation for working out the amount of thermal energy required is q = m c Δ T , where q is the amount of energy, m is the mass being heated up in grams, c is the specific heat capacity of what you're heating up in joules per gram per kelvin, and Δ T is the change in temperature in Kelvin.(Change in temperature will always give the same value,no matter Celsius or Kelvin)
mass = 27g, assuming specific heat capacity of water is 4.18 J/g*K, and the change in temperature is 90-10(=80) , the energy needed to raise : 80 × 27 × 4.18 = 9028.8 J
1.) NaOH + HCl → NaCl + H₂O
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2.) Ca(OH)</span>₂ <span> + H</span>₂<span>SO4 </span>→<span> CaSO</span>₄ + 2H₂O
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3.) 2HCl +Ba (OH)2 </span>→ <span> BaCl</span>₂ + 2H₂O
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4.) HNO3 + LiOH </span>→ <span> LiNO</span>₃ <span> + H</span>₂O
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5.) H</span>₂CO₃ + NaOH → Na₂CO₃ + H₂O
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6.) KOH + HC</span>₂H₃O₂ → KC₂H₃O₂ <span>+ H</span>₂O
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7.) Ba(OH)2 + HNO2 </span>→<span> Ba(NO</span>₂)₂<span> + H</span>₂O
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8.) H</span>₂<span>SO</span>₃<span> + 2NaOH </span>→<span> Na</span>₂SO₃ <span>+ 2H</span>₂O
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9.) H</span>₃<span>PO</span>₄<span> + 3KOH </span>→<span> K</span>₃PO₄ <span>+ 3H</span>₂O
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10.) 2HBr + Ca(OH)2 </span>→<span> CaBr</span>₂ + 2H₂O
The reason why water is so recurrent is because of the general form that says: ACID + BASE → SALT + WATER
I took the liberty of balancing the equations.
I think its 5 I have not learned this so it is my best guess
Answer:
1.087 mi/min
Explanation:
Given data:
Speed of car in Km/h = 105
Speed of car in miles/min = ?
Solution:
It is given that one miles = 1.61 Km
while it is known that one hour = 60 minutes
Thus in order to convert the km/h into mi/min we will divide the given value by 96.561.
105 / 96.561
1.087 mi/min
