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3 years ago

In his proposed model of the atom, J.J. Thomson imagined the atom contained _____.

Chemistry

2 answers:

lara [203]3 years ago

6 0

<span>electrons and space filled with wispy positive charge I would love if I could get brainliest :)

</span>

Sidana [21]3 years ago

6 0

Answer:

In his proposed model of the atom, J.J. Thomson imagined the atom contained positive charge with electrons embedded around it.

Explanation:

J.J. Thomson in his model of atom imagined that an atom is a positively charged sphere in which negative charge that is electron(s) are distributed randomly around it. This model of an atom was also known as plum pudding.

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What is another name for hard water?

astra-53 [7]

Answer:

Hyponym is the another name for hard water.

Explanation:

Please Mark me brainliest

7 0

3 years ago

Find the number of CoCl2 units present in a 0.78 mol sample.

stich3 [128]

$\qquad\qquad\huge\underline{{\sf Answer}}$

Here we go ~

1 mole of $\sf{ COCl_2}$ has 6.022 × 10²³ molecules of the given compound.

So, 0.78 mole of $\sf{COCl_2}$ will have ~

$\qquad \sf \dashrightarrow \: 0.78 \times 6.022 \times 10 {}^{23}$

$\qquad \sf \dashrightarrow \: \approx4.7 \times 10 {}^{23} \: \: \: molecules$

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2 years ago

What is exchanged between the system and the surroundings

BartSMP [9]

Answer:

see note under explanation

Explanation:

When describing system and surroundings the system is typically defined as the 'object of interest' being studied and surroundings 'everything else'. In thermodynamics heat flow is typically defined as endothermic or exothermic. However, one should realize that the terms endothermic and exothermic are in reference to the 'system' or object of interest being studied. For example if heat is transferred from a warm object to a cooler object it is imperative that the system be defined 1st. So, with that, assume the system is a warm metal cylinder being added into cooler water. When describing heat flow then the process is exothermic with respect to the metal cylinder (the system) but endothermic to the water and surroundings (everything else).

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3 years ago

Blocks on the periodic table will not list a(n):

Elis [28]

Blocks on the periodic table will not list a mass number of elements in this scenario.

<h3>What is Periodic table?</h3>

This table comprises of elements in order of their atomic number which determines their chemical properties.

It contains the atomic number but however doesn't contain the mass number of the elements.

Read more about Periodic table here brainly.com/question/15987580
#SPJ12

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2 years ago

Which of these elements is unlikely to have a reaction with any element or compound?

Kay [80]

Argon is a noble gas. Argon has a full outer shell. This makes it so that it does not need to react with any of the other elements to be stable.

With Rubidium and Cobalt its a whole different story.

I hope that helps!

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3 years ago