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Dima020 [189]
3 years ago
12

PLEASE HELP FAST!! BRAINLEST AND 30 POINTS

Chemistry
1 answer:
Natasha_Volkova [10]3 years ago
6 0

b - the repulsion of the protons is decreasing.

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Is ice silicate or nonsilicate
WINSTONCH [101]
Ice is the solid phase of water, so it is not silicate.
7 0
4 years ago
Suppose we want to charge a flask with 1.6 g of sugar. We put the empty flask on a balance and it is determined to weigh 330 g.
RSB [31]

Answer:

total weight to expect = 331.60 grams

Explanation:

The flask wanted to be charged with 1.6 grams of sugar. The empty flask was weighed on a balance and it was determined to weigh 330 grams . The weight we would expect when we add the sugar can be computed as follows:

weight of the empty flask = 330 grams

weight of the sugar = 1.6 grams

The weight of the flask after adding the sugar will be the sum of the weight of the sugar and the empty falsk

Therefore,

Total weight to expect = 330 grams + 1.6 grams

total weight to expect = 331.60 grams

5 0
3 years ago
Read 2 more answers
An oxide of trivalent metal contains 32% of oxygen. Calculate the atomic mass of the metal.​
jekas [21]

The atomic mass of the metal.(M) = 51 g/mol

<h3>Further explanation</h3>

Given

32% of oxygen

Required

the atomic mass of the metal.​

Solution

An oxide of trivalent metal : M₂O₃(Ar O = 16 g/mol)

The molar mass of metal oxide = 2M+16.3=2M+48

32% of oxygen, then :

32% x 2M+48 = 48

0.32(2M+48)=48

0.64M+15.36=48

0.64M=32.64

M=51

4 0
3 years ago
Convert 636 femtometers to micrometers
ValentinkaMS [17]
6.36e-7 micrometers

not sure of the answer not in scientific notation :(

hopefully i could help
3 0
3 years ago
Which one of the following is a redox reaction?
AleksAgata [21]

3Mg(s) + 2FeCl3(aq) → 3 MgCl2(aq) + 2Fe(s)

Explanation:

Redox reaction is a reduction-oxidation reaction in which oxidation states of atoms involved in the reaction are changed. The elements that receive electrons are considered to be reduced while the element that donates the electrons is considered to be oxidized. In the case of this reaction, Fe in the FeCl₃ is reduced into Fe by gaining 3 electrons - while Mg is oxidized to MgCl₂ because it donates 2 electrons.

If you check the moles of Mg, FeCl₃, Fe, and MgCl₂; you'll get to notice that the exchange of electron is balanced at 6.

8 0
3 years ago
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