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3 years ago

What is the easiest way to determine the reactivity of an element

1 answer:

4 0

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Calculate the number of moles present in 9.50g of co2

pshichka [43]

Answer:

0.4318 mol

Explanation:

Moles= mass/ mollar mass

Moles= 9.50/22

Moles= 0.4318 mol

3 0

3 years ago

Hydrogen sulfide gas H2S and aqueous iron(II) chloride are formed by the reaction of aqueous hydrochloric acid HCl and solid iro

jasenka [17]

Answer:

The balanced chemical equation for this reaction is:

2HCl (aq) + FeS (s) -----> FeCl2 (aq) + H2S (g)

Explanation:

5 0

3 years ago

Read 2 more answers

If an object has a mass of 180 g and a density of 6 g/cm^3, what is the volume of the object?

cupoosta [38]

Answer:

<h3>The answer is 30 cm³</h3>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

$volume = \frac{mass}{density} \\$

From the question

mass = 180 g

density = 6 g/cm³

We have

$volume = \frac{180}{6} \\$

We have the final answer as

Hope this helps you

5 0

3 years ago

While working in the chemistry lab, you dissolve 2.5g of sodium hydroxide chips into a beaker containing 50mL of water. As you p

leva [86]

Answer:

Energy was released when the sodium and hydroxide ions formed new bonds with the water.

Explanation:

4 0

3 years ago

Read 2 more answers

I NEED IT RN PLSS TY

nikdorinn [45]

Answer:

Option A is definitely the correct answer.

Explanation:

from my analysis

( Just fill those words into each dash or empty space accordingly as you saw it )

Good luck

8 0

2 years ago