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masya89 [10]
3 years ago
11

Help me!!!will give the brainliest!!plz answer correctlyUrgent!!!​

Chemistry
2 answers:
Jet001 [13]3 years ago
6 0
1.a) All except copper can react with dilute sulphuric acid.
REACTION OF DILUTE SULPHURIC ACID WITH COPPER (II) CARBONATE
CuCO3 (s) + H2S04 (aq)———> CuSO4(aq) +CO2(g)+ H2O (l)

REACTION OF COPPER (II) OXIDE WITH DILUTE SULPHURIC ACID
CuO (s) + H2SO4 (aq)———> CuSO4 (aq) + 2H2O (l)
d1i1m1o1n [39]3 years ago
4 0

Answer:

The other person was correct =w0

Explanation:

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The combustion of propane (C3H8) produces CO₂ and H₂O:
fomenos

Answer:

4.4 moles of water

Explanation:

Propane is C3H8. Is the chemical equation, you wrote C2H8 which is wrong. Type everything properly and give a check before finally posting the question.

The chemical equation that is given, is not properly balanced. The BALANCED equation would be

C3H8 + 5O2 → 3CO2 + 4H2O

From this balanced chemical equation, we see that 5 moles of oxygen produce 4 moles of water.

5 moles of Oxygen → 4 moles of water

1mole of oxygen → \frac{4}{5} moles of water

5.5 moles of oxygen → (\frac{4}{5} × 5.5) moles of water = 4.4 moles of water

∴ The reaction of 5.5 mol of O2 will produce <u>4.4</u> mol of H2O. [Answer:]

5 0
3 years ago
Read 2 more answers
Lighting is an example of static______.
geniusboy [140]

electricity

Explanation:

8 0
4 years ago
Using the curve which letter represents efficiency?
velikii [3]

Answer:

point A , B and C

Explanation:

The efficient frontier is the set of optimal portfolios that offer the highest expected return for a defined level of risk or the lowest risk for a given level of expected return

4 0
3 years ago
When you have finished adding the necessary amount of NaOH to your beaker, what color will the litmus paper turn?
Svetllana [295]

<u>Answer:</u> The red litmus paper turns blue on dipping in NaOH solution.

<u>Explanation:</u>

Litmus paper is the indicator that detects the nature of the solution, whether it is acidic or basic.

There are 2 types of litmus paper:

  • <u>Red litmus paper:</u> This paper will turn blue if it is dipped in basic solution and will remain as such if it is dipped in acidic solution.
  • <u>Blue litmus paper:</u> This paper will turn red if it is dipped in acidic solution and will remain as such if it is dipped in basic solution.

NaOH is a strong base, so when a red litmus paper is dipped in the beaker having necessary amount of NaOH, the red litmus paper turns into blue.

7 0
4 years ago
What path does water take as it collects salt while flowing to the ocean?
vichka [17]

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By moving heat from the equator toward the poles, ocean currents play an important role in controlling the climate. Ocean currents are also critically important to sea life. They carry nutrients and food to organisms that live permanently attached in one place, and carry reproductive cells and ocean life to new places.

Explanation:

i got this off my chemistry sight.. your welcome

6 0
3 years ago
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