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3 years ago

What is the name of the aluminum ion? Al–1 Al+2 Al–3 Al+3

Chemistry

2 answers:

vaieri [72.5K]3 years ago

7 0

Answer:

Al+3

Explanation:

Got it right on test

Sidana [21]3 years ago

5 0

Most transition metal form more than one cation but aluminum forms the Al3+ cation only.

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Which general equation shows a Single-displacement reaction?

Stella [2.4K]

Hello! The answer is D

A good note for these is when there are three elements, one being a singular element and another a compound and there’s a single switch, this could show a single-displacement

Have a good day gamer.

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1 year ago

#1-9: Write M for Mercury, V for Venus, or B for both planets in the blank before each statement below.

Tanya [424]

Answer:

1. B

2. M

3. V

4. M

5. M

6. V

7. B

8. M

9. V

10. V

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Explanation:

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2 years ago

Read 2 more answers

A and B react together in this reversible reaction. A + 3B --> C + 2D. A mixture of 10 mol of A and 10 mol of B were left to

alexira [117]

Not multiple choice?

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3 years ago

A 37.2 g sample of copper at 99.8 °C is carefully placed into an insulated container containing 188 g of water at 18.5 °C. Calcu

klasskru [66]

Answer:

T₂ = 19.95°C

Explanation:

From the law of conservation of energy:

$Heat\ Lost\ by\ Copper = Heat\ Gained\ by\ Water\\m_cC_c\Delta T_c = m_wC_w\Delta T_w$

where,

mc = mass of copper = 37.2 g

Cc = specific heat of copper = 0.385 J/g.°C

mw = mass of water = 188 g

Cw = specific heat of water = 4.184 J/g.°C

ΔTc = Change in temperature of copper = 99.8°C - T₂

ΔTw = Change in temperature of water = T₂ - 18.5°C

T₂ = Final Temperature at Equilibrium = ?

Therefore,

$(37.2\ g)(0.385\ J/g.^oC)(99.8\ ^oC-T_2)=(188\ g)(4.184\ J/g.^oC)(T_2-18.5\ ^oC)\\99.8\ ^oC-T_2 = \frac{(188\ g)(4.184\ J/g.^oC)}{(37.2\ g)(0.385\ J/g.^oC)}(T_2-18.5\ ^oC)\\\\99.8\ ^oC-T_2 = (54.92) (T_2-18.5\ ^oC)\\54.92T_2+T_2 = 99.8\ ^oC + 1016.02\ ^oC\\\\T_2 = \frac{1115.82\ ^oC}{55.92}$

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2 years ago

Caculate the number of moles in 1.70g of NH3

lutik1710 [3]

Moles of NH3 = mass of NH3/molecular mass of NH3 = 1.7/17= O.1 MOLES.

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2 years ago