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liubo4ka [24]
2 years ago
8

Put the following steps in order to show how a scientist follows Scientific Method

Chemistry
1 answer:
Gekata [30.6K]2 years ago
8 0
1.question, 2.observe, 3.hypothesize, 4.experiment 5.conclusion, 6. record.
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A van moves with a constant speed
Kitty [74]

Answer:

1.5 hours or 90 minutes

Explanation:

Velocity = d/t

V = 64 mi / hour or 96 mi / 9 min OR 16 mi / 15 min

D = 96 miles

Velocity * Time = Distance

Time = Distance / Velocity

T = 96 mi / 64 mi / hour

96 / 64 = 1.5 mi per hour

T = 1.5 hours or 90 minutes

4 0
3 years ago
An atom of 14 6 c carbon decays by gamma decay which atom is left after the decay
ladessa [460]
Answer is: carbon.

<span>During gamma emission the nucleus emits radiation without changing its composition, if for example have nucleus with six protons and six neutrons (carbon atom) and after gamma decay there is nucleus with six protons and six neutrons.
Gamma rays are the electromagnetic waves with the shortest wavelengths (1 pm), highest frequencies (300 EHz) and highest energy (1,24 MeV).</span>


7 0
3 years ago
Read 2 more answers
Which is the correct name of a compound that is formed by Si and O? silicon dioxide silicon trioxygen disilicon dioxygen monosil
Flauer [41]

The correct is tricky, be careful. The right is silicon dioxyde (SiO2)

Silicon Oxides are written in the form SiOx, (0 <x <2), so:

there is no silicon trioxygen and disilicon dioxygen.

SiO is called silicon monoxide and not monosiicon oxygen, so this proposition is false.

All that remains is the silicon dioxide (SiO2) that is written correctly.

Silicon dioxide can be synthesized but also exists in abundance in nature. Silicon (Si) represents about 26% of the Earth's crust. Silica (SiO2), the natural form of silicon dioxide, accounts for about 60%.

8 0
3 years ago
Read 2 more answers
What is the difference between a physical change and a chemical change? give examples for both​
Tanya [424]

Answer:

Physical change is a temporary change. A chemical change is a permanent change.

Explanation:

A Physical change affects only physical properties i.e. shape, size, etc. Chemical change both physical and chemical properties of the substance including its composition.

7 0
3 years ago
Melting involves … *
nydimaria [60]

Answer:

C

Explanation:

A solid becoming liquid, like molten iron

8 0
3 years ago
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