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vodomira [7]
3 years ago
6

A glass object receives a positive charge by rubbing it with a silk cloth. in the rubbing process, have protons been added to th

e object or have electrons been removed from it?
Chemistry
1 answer:
MaRussiya [10]3 years ago
5 0
Electrons are the only thing that can freely move from one object to another object. By rubbing the silk cloth on the glass, since the net charge becomes positive, that means that electrons were removed. So answer is : electrons removed.
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Enter the correct 4 digit code (no spaces)
Airida [17]
3618 is the numbers for the graph
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3 years ago
What is the molecular formula of a compound with an empirical formula of ch and a molar mass of 78. 1 g/mol?.
ANEK [815]

Answer:

answer is in the explanation

Explanation:

Answer. Explanation: ->So, molecular formula = (CH)n = (CH)6 =C6H6; in this case we substituted the calculated value of n. ->Therefore, the molecular formula of the compound having the molecular weight 78 g/mol is (D) - C6H6.

4 0
2 years ago
S2- has the same electron configuration as which neutral element?
Llana [10]

Answer:

ANSWER OS HERE

Explanation:

THE O2- has two more extra electrons due to presence of 2 negative charges so a total of 10 electrons and the element that has 10 electrons in the periodic table in its neutral state is Neon (Ne) ( atomic number (10) = no.of protons = no. of electrons) so neutral element with same electron configuration as O2- is Ne. Log in or register to post comments.

6 0
3 years ago
chemical engineer has determined by measurements that there are moles of nickel in a sample of nickel tetracarbonyl. How many mo
zavuch27 [327]

A chemical engineer has determined by measurements that there are 7.0 moles of carbon in a sample of nickel tetracarbonyl. 7 moles of oxygen are in the sample.

<h3>What is Stoichiometry ?</h3>

Stoichiometry helps us use the balanced chemical equation to measure quantitative relationships and it is to calculate the amounts of products and reactants that are given in a reaction.

<h3>What is Balanced Chemical Equation ?</h3>

The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.

According to Stoichiometry

7\ \text{mol C} \times \frac{1\ \text{mol O}}{1\ \text{mol C}}

= 7 mol O

Thus from the above conclusion we can say that A chemical engineer has determined by measurements that there are 7.0 moles of carbon in a sample of nickel tetracarbonyl. 7 moles of oxygen are in the sample.

Learn more about the Stoichiometry here: brainly.com/question/16060223

#SPJ4

Disclaimer: The question was given incomplete on the portal. Here is the complete question.

Question: This is the chemical formula for Nickel Tetracarbonyl (a powerfully poisonous liquid used in Nickel Refining).

Ni(CO)₄

A chemical engineer has determined by measurements that there are 7.0 moles of carbon in a sample of nickel tetracarbonyl. How many moles of oxygen are in the sample ?

6 0
2 years ago
HELP ASAP, PLEASE! I also have another question that has yet to be answered (it's a chemistry question) that's worth the same am
DedPeter [7]
I forgot this one, but I learned this in physics class. It had something to do with there being more or less electrons for how ever many photons there is in an atom.

Example: Hydrogen has 1 photon which usually means there is one electron, but when there is more electrons than photons, that is a negative ion. When there's less electrons than photons, that is a positive ion.

hope this helps
3 0
4 years ago
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