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babymother [125]
3 years ago
10

What the answer giving brainliest:) HELP

Chemistry
2 answers:
Zepler [3.9K]3 years ago
7 0

Answer: should be d. then

(sorry if im wrong)

:(

i feel so stupi.d

(i changed my answer to d.)

Elan Coil [88]3 years ago
3 0

Answer:

I think it's tornado

Explanation:

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Consider the addition of NaCl to the ice-water mix in Part II. Which of the following statements is TRUE?
Sati [7]
B is correct

salt lowers the freezing point of water (colligative property) by lowering the interaction and intermolecular forces between water molecules
6 0
2 years ago
If an atom has 34 protons and 40 neutrons, what is its mass number? 40 6 74 34
Darya [45]
Protons+Neutrons
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7 0
3 years ago
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C3H8(g) + 5O2(g) ⟶ 3CO2(g) + 4H2O(g) H = -2220 kJ If 865.9 g of H2O is produced during this combustion, how much heat is generat
dem82 [27]

Answer:

3 × 10⁴ kJ

Explanation:

Step 1: Write the balanced thermochemical equation

C₃H₈(g) + 5 O₂(g) ⟶ 3 CO₂(g) + 4 H₂O(g) ΔH = -2220 kJ

Step 2: Calculate the moles corresponding to 865.9 g of H₂O

The molar mass of H₂O is 18.02 g/mol.

865.9 g × 1 mol/18.02 g = 48.05 mol

Step 3: Calculate the heat produced when 48.05 moles of H₂O are produced

According to the thermochemical equation, 2220 kJ of heat are evolved when 4 moles of H₂O are produced.

48.05 mol × 2220 kJ/4 mol = 2.667 × 10⁴ kJ ≈ 3 × 10⁴ kJ

5 0
2 years ago
How does this look? (Its for a science project about animal life
konstantin123 [22]

Answer:

why is there a cherry on its head?

Explanation:

You may want to add details/description to the photo as it is a little confusing

3 0
3 years ago
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What was a Parthian battery?
timama [110]

Answer:

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Explanation:

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