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NikAS [45]
3 years ago
9

The scientific method is the way scientists solve problems. Scientists begin to solve a problem by making _____.

Chemistry
1 answer:
swat323 years ago
5 0

Answer:

Explanation: observations

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Which of the following is true about the principle of the conservation of mass? *
vova2212 [387]

Answer:

F

Explanation:

7 0
3 years ago
What is the fraction of the hydrogen atom's mass (11h) that is in the nucleus? the mass of proton is 1.007276 u, and the mass of
ololo11 [35]
Hello there!

To determine the fraction of the hydrogen atom's mass that is in the nucleus, we have to keep in mind that a Hydrogen atom has 1 proton and 1 electron. Protons are in the nucleus while electrons are in electron shells surrounding the nucleus. The mass of the nucleus will be equal to the mass of 1 proton and we can express the fraction as follows:

Mass Fraction= \frac{mass 1 Proton}{mass H atom} = \frac{1,007276 u}{1,007825}=0,9995

So, the fraction of the hydrogen atom's mass that is in the nucleus is 0,9995. That means that almost all the mass of this atom is at the nucleus.

Have a nice day!
3 0
3 years ago
What is the SI unit for energy? How is it abbreviated?
hjlf

Answer:

Joule - J

Explanation:

As energy is defined via work, the SI unit of energy is the same as the unit of work – the joule (J).

3 0
3 years ago
Pizza is an example of a homogeneous mixture.
Kay [80]
No its a example of heterogeneous mixture
4 0
3 years ago
What are some example of nuclear acids
vladimir1956 [14]
First of all, it is a nucleic acid, not nuclear acid.

Examples are DNA and RNA( Deoxyribonucleic Acid and Ribonucleic Acid)
3 0
3 years ago
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