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lisabon 2012 [21]
4 years ago
15

The water is an example of a ________

Chemistry
2 answers:
Kitty [74]4 years ago
7 0
The water is an example of a homogeneous mixture.
ella [17]4 years ago
7 0
Containing 2 hydrogen atoms and a single oxygen atom. or <span>homogeneous mixture</span>
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A scientist claims to have discovered an element with 30 protons in its nucleus. He determines it has 60 electrons. Why is his i
UNO [17]

The number of electrons in an atom of an element being always the same

as the number of protons in its nucleus is False.

<h3>What is an Electron?</h3>

This is a sub-atomic particle which is negatively charged and is usually

involved in chemical reactions.

Electropositive elements donates electrons while electronegative

elements accepts electrons during chemical reactions which is why the

number of proton and electron aren't always the same.

Read more about Electrons here brainly.com/question/900457

4 0
2 years ago
Read 2 more answers
A car is traveling with an initial velocity of 15 m/s when the driver decides to go faster by accelerating at 5 m/s2 for 10 seco
Ilia_Sergeevich [38]

Answer: Time needed: 2.5 s

Distance covered: 31.3 m

Explanation:

I'll start with the distance covered while decelerating. Since you know that the initial speed of the car is 15.0 m/s, and that its final speed must by 10.0 m/s, you can use the known acceleration to determine the distance covered by

 

on one side of the equation and solve by plugging your values

To get the time needed to reach this speed, i.e. 10.0 m/s, you can use the following equation

Explanation:

7 0
3 years ago
Which property is dependent only on the atomic structure of the compound? *
shusha [124]

I think its mass of volume

5 0
2 years ago
A parent who is convinced that children have rights that ought not to be interfered with by adults is most likely:
DedPeter [7]
(does this belong in chemistry?)


anyways, the parent was most likely a kid who wanted privacy. they wanted something so they are giving it to their kids.
7 0
3 years ago
The period 4 alkaline-earth metal has the name_______ . An isotope of this element having 20 neutrons has amass numberof _______
Cerrena [4.2K]

Answer:

The period 4 alkaline-earth metal has the name Calcium. An isotope of this element having 20 neutrons has a mass number of 40.

Explanation:

Looking at the periodic table 4th row for the alkaline-earth metal, we can find Calcium which has an atomic number of 20 (or protons number, or z). The mass number is given by the sum of protons and neutrons. If the number of protons in this case is 20 and the number of neutrons is also 20, the mass number A = 40.

6 0
3 years ago
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