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den301095 [7]
3 years ago
13

Can someone help me please

Chemistry
1 answer:
lesantik [10]3 years ago
4 0
It is an endothermic reaction because the products hAve more heat than the reactions so it was a gain of heat which makes the enthalpy Change positive !
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3 years ago
A sample of metal has a mass of 16.5916.59 g, and a volume of 5.815.81 mL. What is the density of this metal
Oxana [17]

Answer:

=> 2.8554 g/mL

Explanation:

To determine the formula to use in solving such a problem, you have to consider what you have been given.

We have;

mass (m)     = 16.59 g

Volume (v) =  5.81 mL

From our question, we are to determine the density (rho) of the rock.

The formula:

p = \frac{m}{v}

Substitute the values into the formula:

​p = \frac{16.59 g}{5.81 mL} \\   = 2.8554 g/mL

= 2.8554 g/mL

Therefore, the density (rho) of the rock is 2.8554 g/mL.

5 0
2 years ago
Unlike gases, the behavior of liquids and solids cannot be described by a set of laws that can be applied regardless of the iden
Tresset [83]

Answer:

a. True

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But we do not see a definite pattern or rule when we study solids or liquids. The behavior of the solids and liquids are not described by the set of laws which are applied regardless of the identity of the substance.

6 0
3 years ago
Please only answer if you're going to help.
ololo11 [35]

Answer:

1.solvent

2.unsoluble

3.solute

4.solvent

5.souble

6.aqueous

3 0
3 years ago
Under which conditions will sugar most likely dissolve fastest in a cup of water?
zheka24 [161]
If the cup of water contained hot water. Sugar will dissolve a lot slower if it was in room temperature and even slower if it was in cold water.
3 0
3 years ago
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