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Elena-2011 [213]
3 years ago
15

During a class demonstration the potassium exploded. Suggest what might have caused this to happen

Chemistry
1 answer:
tatiyna3 years ago
7 0
Could’ve reacted with water as alkali metals are very reactive to water.
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Why does NYS experience so few hurricanes compared to Florida?<br> Pictures are required
AURORKA [14]

Answer:

Explanation:Hurricane are fast moving that blows. It is formed over warm waterbodies and it can destroy lives and properties.

Florida is a state in united state while New york is an extention from florida. Florida is know to be contain many water bodies and the rise of warm water over time could lead to hurricane. Hurricane in New york will be few because its just a city in florida there are still many mkre cities in florida such that when hurricane occurs it of great impact.

6 0
3 years ago
A race car is driven by a professional driver at 99 . What is this speed in and ? 1 mile = 1.61 kilometers 1 hour = 60 minutes E
slavikrds [6]

Answer: The speed is equivalent to <u>159.39 kilometers per hour </u>or <u>2.65 kilometers per minute.</u>

Explanation:

Given, The speed of a race car = 99 miles/ hour

To convert the speed into  kilometers per hour and kilometers per minute

Since   1 mile = 1.61 kilometers

So, Speed of car = (99 ) x (1.61 )

= 159.39 kilometers per hour.

Also, 1 hour = 60 minutes

Then, Speed of car = (159.39) ÷60

= 2.6565≈2.65 kilometer per minute.

Hence, the speed is equivalent to <u>159.39 kilometers per hour </u>or <u>2.65 kilometers per minute.</u>

4 0
4 years ago
Which of the following is a mass? Which is a Velocity?<br><br>25kg<br><br>2.5 meters/second ​
KATRIN_1 [288]

Answer:

mass is 25

velocity is 2.5

7 0
3 years ago
What kind of chemical reaction does the chemical equation sodium + chlorine → sodium chloride represent? combustion decompositio
horsena [70]
The answer is D, synthesis.
4 0
3 years ago
When determining molecular polarity, which scenario is not possible:
Fynjy0 [20]

Answer: Option C is correct

A polar molecule with nonpolar bonds

Explanation:

A polar molecule with nonpolar bonds cannot be polar because a polar molecule has net dipole that it has one end slightly positive and the other end slightly negative which allows the distribution of atoms .

Therefore it cannot have non polar bonds because non polar bonds allow electrons to be shared equally and it take place between non elemental substances or substances that are not elements , it cannot occur in elemental substances because these substances have different electronegativities which can be held by polar bonds alone.

6 0
3 years ago
Read 2 more answers
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