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Katen [24]
2 years ago
13

C) Which one of the following compounds will react with perrhenic acid? Tick one box.

Chemistry
1 answer:
olya-2409 [2.1K]2 years ago
4 0

Answer:

I believe is the correct answer

Explanation:

hydrochloric

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Neporo4naja [7]
46.0684g I think because you have to concert grams to moles or moles to grams
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3 years ago
What is the ground state configuration of Cr2+, Cu2+ and Co3+?
Xelga [282]

Explanation:

Atomic number of chromium is 24 and electronic configuration of Cr^{2+} is as follows.

     Cr^{2+} : 1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{0}3d^{4}

Atomic number of copper is 29 and electronic configuration of Cu^{2+} is as follows.

     Cu^{2+} : 1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{0}3d^{9}  

Atomic number of cobalt is 27 and electronic configuration of Co^{3+} is as follows.

      Co^{3+} : 1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{0}3d^{6}  

8 0
4 years ago
Read 2 more answers
A sample of oxygen that occupies 1.00 * 10^6 at 575 mm Hg is subjected to a pressure of 1.25 atm. What will the final volume of
Vlada [557]

A sample of oxygen occupies 1.00 × 10⁶ mL at 575 mmHg. If the pressure is increased to 1.25 atm, the volume decreases to 6.06 × 10⁵ mL.

<h3>What does Boyle's law state?</h3>

Boyle's law states that the pressure of a given mass of an ideal gas is inversely proportional to its volume at a constant temperature.

  • Step 1: Convert the initial pressure to atm.

We will use the conversion factor 1 atm = 760 mmHg.

575 mmHg × 1 atm/760 mmHg = 0.757 atm

  • Step 2: Calculate the final volume of the gas

A sample of oxygen occupies 1.00 × 10⁶ mL (V₁) at 0.757 atm (P₁).

If the pressure is increased to 1.25 atm (P₂), we can calculate the new volume (V₂) using Boyle's law.

P₁ × V₁ = P₂ × V₂

V₂ = P₁ × V₁ / P₂

V₂ = 0.757 atm × 1.00 × 10⁶ mL / 1.25 atm = 6.06 × 10⁵ mL

A sample of oxygen occupies 1.00 × 10⁶ mL at 575 mmHg. If the pressure is increased to 1.25 atm, the volume decreases to 6.06 × 10⁵ mL.

Learn more about Boyle's law here: brainly.com/question/469270

5 0
3 years ago
Carbonates are typically insoluble, but one exception would be a carbonate containing what kind of cation? a) ammonium b) a tran
KATRIN_1 [288]

For a carbonate containing a kind of cation, we have that Option 1 is the correct answer: ammonium.

<h3>What are Carbonates?</h3>

Generally, Any of two families of chemical substances generated from carbonic acid or carbon dioxide is referred to as carbonate.

In conclusion, Sodium, potassium, and ammonium are the three carbonates that are soluble.

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4 0
2 years ago
Which best explains how photosynthesis is helpful to humans?​
marissa [1.9K]

Answer:

It reduces the amount of harmful rays released by the sun. It increases the levels of carbon dioxide in the air.

Explanation:

<em>PWLS MARK ME BRAINLIEST*</em>

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