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kolbaska11 [484]
3 years ago
12

When two substances A and B are powered together in a pestle and mortar, a large amount of heat is envolved. As a result a new s

ubstance C is formed. What is the nature of the new substance ?
a) Element
b) Mixture
c) Both a and b
d) Compound​
Chemistry
1 answer:
ra1l [238]3 years ago
7 0

Answer:

element

Explanation:

wodhdhdhbbbx f fbfbbf g gg gnfg g g

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letter b by replicating experiments

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2 years ago
Describe the method to make pure, dry crystals of magnesium sulfate from a metal oxide and dilute acid.
emmasim [6.3K]

Answer:

H2SO4(aq) + MgO(s) → H2O(l) + MgSO4(aq)

Explanation:

We must recall that the oxides of metals are bases. These metal oxides can react with dilute acids to yield salt and water.

Bearing that in mind, we want to obtain magnesium sulfate from a metal oxide and dilute acid.

In this case we need magnesium oxide and dilute sulphuric acid. The reaction occurs as follows;

H2SO4(aq) + MgO(s) → H2O(l) + MgSO4(aq)

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geniusboy [140]

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4 0
3 years ago
Read 2 more answers
Help please
Lady_Fox [76]

Answer:

It is this below

Explanation:

P = m/v

8 0
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ANSWER ASAP! PLEASE!!!!!
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