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Alika [10]
4 years ago
14

How can chemical changes be detected

Chemistry
1 answer:
saul85 [17]4 years ago
7 0
Rarely they can't with just sight. Certain tests or experiments should take place
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Convert 19.2 moles to kL ??
noname [10]

Answer:

30.8994048km

Explanation:

19.2 mi * 1.609344 km/1mi = 30.8994048 km

A common question isHow many mile in 19.2 kilometer?And the answer is 11.930326891 mi in 19.2 km. Likewise the question how many kilometer in 19.2 mile has the answer of 30.8994048 km in 19.2 mi.

8 0
3 years ago
What might cause average global surface temperature to rise and fall from year to year
Ipatiy [6.2K]
 <span>The most likely explanation for the lack of significant warming at the Earth's </span>surface<span> in the past decade or so is that natural climate cycles </span>caused<span> shift.</span>
4 0
4 years ago
When H+ forms a Bond with H2O to form the Hydronium ion H3 plus this bond is called a coordinate covalent bond because
NISA [10]

Answer:

Because both the bonding electrons come from the oxygen atom. Explanation: A coordinate covalent bond is formed when both the bonding electrons are coming from the same atom

Explanation:

7 0
3 years ago
Hot asphalt poured onto flat ground cools to form a solid road surface. Chemical or physical change
Verdich [7]
<h2>Answer:</h2>

This is a physical change.

<h3>Explanation:</h3>

Hot asphalt is mixed with the sand crushed stones and spread onto the roads, when it gets dry it becomes hard giving a smooth straight surface of the road.

Asphalt is used to stick together stones and sand in the road.

It is a physical change because the phase of the asphalt changed from the liquid to solid.

At high temperature, asphalt is in liquid form and at room temperature, it is present in hard solid form.

6 0
3 years ago
How many grams of dry nh4cl need to be added to 2.00 l of a 0.600 m solution of ammonia, nh3, to prepare a buffer solution that
Brrunno [24]
Nh4cl = 117.165 gram ( solution is attached )

8 0
4 years ago
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