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2 years ago

If the following ions Mg2+, Cl-, Sr2+, OH- are placed in a test tube, the precipitate formed is

Chemistry

1 answer:

Solnce55 [7]2 years ago

3 0

Answer:

I am so sorry if I am wrong but my guess is no precipitate is formed.

Explanation:

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Can someone help me with this

Flura [38]

Answer:

I don't know how to get the answer sorry

Explanation:

6 0

2 years ago

For each set of reactions, determine the value of δh2 in terms of δh1. a+b→2c,δh1 1/2a+1/2b→c,δh2=? express your answer in terms

allochka39001 [22]

ΔH2 = - δH1 δH2 = - 2 x δH1 δH2 = 2 x <span>δ</span>H1

3 0

2 years ago

What happens when liquid magma is cooled

Vaselesa [24]

Magma that cools quickly forms one kind of igneous rock, and magma that cools slowly forms another kind. When magma rise from deep within the earth and explodes out of a volcano, it is called lava, and it cools quickly on the surface. Rock formed in this way is called extrusive igneous rock.

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3 years ago

A 4.00g sample of helium has a volume of 24.4L at a temperature of 25.0oC and a pressure of 1.00 atm. The volume of the helium i

Masteriza [31]

Answer:

0.41 moles.

Explanation:

Given that:

Mass of helium = 4.00 g

Initial Volume = 24.4 L

initial Temperature = 25.0 °C =( 25 + 273) = 298 K

initial Pressure = 1.00 atm

The volume was reduced to :

i.e

final volume of the helium - 10.4 L

Change in ΔV = 24.4 - 10.4 = 10.0 L

Temperature and pressure remains constant.

The new quantity of gas can be calculated by using the ideal gas equation.

PV = nRT

n = $\frac{PV}{RT}$

n = $\frac{1.00*10.0}{0.082057*298}$

n = 0.4089 moles

n = 0.41 moles.

7 0

2 years ago

What is the best description of weathering?

zheka24 [161]

D. breakdown of rocks through mechanicals or chemicals processes

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2 years ago