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Irina-Kira [14]
3 years ago
8

An ice wedge shattering a slab of shale a Chemical Change b Physical Change

Chemistry
1 answer:
Brilliant_brown [7]3 years ago
4 0

Answer:

<u>Physical Change</u>

Explanation:

Its a physical change because it is not changing its molecular structure it is only changing the shape of the shale.

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Complete and balance the following symbol equation, and add state symbols
erastovalidia [21]

Answer:

2NaOH + H2So4 》Na2So4+ 2H2O

Explanation:

SODIUM HYDROXIDE, 2NaOH IS (aq)

FULFURIC ACID, H2So4 IS (aq)

SODIUM SULFATE, Na2So4 IS (aq)

WATER,2H20 IS (l)

5 0
3 years ago
Copper has average atomic mass of 63.546 amu. It's two isotopes are Cu-63 (which is 69.17% abundant and has a mass of 62.9296 am
garri49 [273]

Answer: 69.152% → 63^Cu

30.848% → 65^Cu

Explanation:

As you know, the average atomic mass of an element is determined by taking the weighted average of the atomic masses of its naturally occurring isotopes.

Simply put, an element's naturally occurring isotopes will contribute to the average atomic mass of the element proportionally to their abundance.

Explanation:

6 0
2 years ago
Which is the best location for storing radioactive wastes?
vesna_86 [32]
<span>Deep geological disposal is widely agreed to be the best solution for final disposal of the most radioactive waste produced.

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Hope this helps :)
4 0
3 years ago
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1. Dissolve 1 teaspoon of Epsom salts in a half cup of water.
andreyandreev [35.5K]
<span>1. The balanced equation for the reaction between magnesium sulfate and ammonia is MgSO4 + 2NH4OH → (NH4)2SO4 + Mg(OH)2
2. The reaction between magnesium sulfate and ammonia is double displacement.</span>
7 0
3 years ago
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What does the following energy diagram represent?A. Activation energyB. Exothermic reactionC. Specific heat capacityD. Endotherm
inn [45]

Explanation:

We are given the following diagram.

In this diagram we can see how the energy in the reaction changes over time. The energy of the products is greater than the energy of the reactants. That means that the products have won some energy. That represents an endothermic reaction where the reactants absorb energy from the surrounding to form the products.

Answer: D. Endothermic reaction.

8 0
1 year ago
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