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Bess [88]
4 years ago
5

In a chemical reaction, the reactant undergoes:

Chemistry
1 answer:
Step2247 [10]4 years ago
3 0
Its B chemical change
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8. A train travels at a at a speed of 30 miles per hour if 1 mile = 1.6 kilometers, how fast is the train traveling in kilometer
sattari [20]

Answer:

Explanation:

A: 0.8 KM/Min

1.6 x 30 = 48

48/60 = 0.8

3 0
3 years ago
When a substance undergoes a change
Amiraneli [1.4K]

Answer:D

Explanation:Each time state transforms into a solid matter thus a physical property is the answer.BRAINLIEST PLEASE

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2 years ago
What provides the energy to set the water cycle in motion?
romanna [79]
Where is the question
7 0
3 years ago
Which of the following is not equal to 0.1 centimeters?
Anon25 [30]

Answer:

c) 10 millimeters (mm)

Explanation:

The unit conversions are as follows:

1 cm = 10 mm (millimeter)

1 cm = 0.01 m (meter)

1 cm = 0.00001 km (kilometer)

1 cm = 10000 μm (micrometer)

Based on the above conversions:

0.1 cm = \frac{10 mm*0.1 cm}{1 cm} = 0.1 mm

0.1 cm = \frac{0.01 m*0.1 cm}{1 cm} = 0.001 m

0.1 cm = \frac{0.00001 km * 0.1 cm}{1 cm} = 0.000001 km

0.1 cm = \frac{10000 um*0.1cm}{1 cm} =1000 um

Therefore, 0.1 cm = 10 mm is incorrect instead it is 0.1 mm

8 0
4 years ago
Read 2 more answers
Which change to an atom occurs when it forms a positive ion​
Semmy [17]

Answer: loss of electrons

Explanation:

An atom is made up of three subatomic particles named protons neutrons and electrons. An atom forms positive ion with the loss of at least one electron.

For instance: Calcium with atomic number 20, and electronic configuration 1s2, 2s2 2p6, 3s2 3p6, 4s2 will lose the two outermost electrons to form a divalent positive ion (Ca2+).

Ca --> Ca2+ + 2e-

Thus, loss of electrons is the change to an atom that occurs when it forms a positive ion​

5 0
3 years ago
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