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Elden [556K]
2 years ago
8

Which is a strong base? HCl NaOH NH3 H3CO3

Chemistry
1 answer:
STatiana [176]2 years ago
6 0

Answer:

The answer is B: NaOH :3

Explanation:

Hope this helped :D

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Problem 4
Hunter-Best [27]
<h3>Answer:</h3>

1.93 g

<h3>Explanation:</h3>

<u>We are given;</u>

The chemical equation;

2C₂H₆(g) + 7O₂(g) → 4CO₂(g) + 6H₂O(l) ΔH = -3120 kJ​

We are required to calculate the mass of ethane that would produce 100 kJ of heat.

  • From the equation given;
  • 2 moles of ethane burns to produce 3120 Kilo joules of heat
  • Therefore;

Number of moles that will produce 100 kJ will be;

= (2 × 100 kJ) ÷ 3120 kJ)

= 0.0641 moles

  • But, molar mass of ethane is 30.07 g/mol

Therefore;

Mass of ethane = 0.0641 moles × 30.07 g/mol

                          = 1.927 g

                          = 1.93 g

Thus, the mass of ethane that would produce 100 kJ of heat is 1.93 g

3 0
3 years ago
Can anyone draw a diagram of a liebigs condenser
MrMuchimi

I googled it, here it is lol

6 0
2 years ago
ANSWER ASAP AND I WILL GIVE BRAINLYEST!!!!
Vlada [557]

Answer:

20m

Explanation:

mark brainliest

6 0
3 years ago
If an object absorbs light energy it's thermal energy ______ .
kolezko [41]
It would be probably most likely B
3 0
3 years ago
A test light with an electrical resistance of 9.00 S2 draws a current of 1.50 A when
yuradex [85]

Answer:

20.25 W

Explanation:

Applying,

P = I²R.................... Equation 1

Where P = Power, I = current drawn by the test light, R = Resistance of the test light

From the question,

Given: I = 1.5 A, R = 9.00 Ω

Substitute these values into equation 1

P = (1.5²)(9)

P = 2.25×9

P = 20.25 W

4 0
3 years ago
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