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kupik [55]
3 years ago
15

Ng.

Chemistry
1 answer:
Kipish [7]3 years ago
4 0
They make finding things easier so we plug abs don’t need to go on the other planets and can just send the -robots
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Im stuck on these two problems
Vikki [24]

1st figure

answer

c)12

2nd

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c)28

#brianliest

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4 years ago
In an experiment on obedience to authority, one subject tells another that the shocks might not be real. Which issue of invalidi
Akimi4 [234]
The answer is c because the subject thinks that they will be shocked when then might not
8 0
4 years ago
what is the percent by mass of a solution that contains 30 grams of potassium nitrite in 0.5 kilograms of water?
Makovka662 [10]

Answer:

5.66 %.

Explanation:

<em>mass percent is the ratio of the mass of the solute to the mass of the solution multiplied by 100.</em>

<em />

<em>mass % = (mass of solute/mass of solution) x 100.</em>

<em></em>

mass of potassium nitrite = 30.0 g,

mass of the solution = mass of water + mass of potassium nitrite = 500.0 g + 30.0 g = 530.0 g.

<em>∴ mass % = (mass of solute/mass of solution) x 100</em> = (30.0 g/530.0 g) x 100 = <em>5.66 %.</em>

5 0
3 years ago
Describe the process used to measure out a specific mass of a solid
raketka [301]
Place the solid on an electronic balance. Read the balance reading.
8 0
4 years ago
Identify whether each species functions as a Brønsted-Lowry acid or a Brønsted-Lowry base in this net ionic equation.CH3COO-+HCO
NARA [144]

Explanation :

According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.

Or we can say that, conjugate acid is proton donor and conjugate base is proton acceptor

The given equilibrium reaction is,

CH_3COO^-+HCO_3^-\rightleftharpoons CH_3COOH+CO_3^{2-}

In this reaction, CH_3COO^- and HCO_3^- are act as Bronsted Lowry base and acid respectively and CH_3COOH and CO_3^{2-} are act as Bronsted Lowry acid and base respectively.

The formula of conjugate of CH_3COO^- is, CH_3COOH

The formula of conjugate of HCO_3^- is, CO_3^{2-}

7 0
3 years ago
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