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Colt1911 [192]
3 years ago
11

The mass of the nails and copper sulfate solution used in this investigation was 250g. The mass of the copper and iron sulfate s

olution produced in this investigation would be blank?????? 250g.
Chemistry
1 answer:
Nonamiya [84]3 years ago
6 0
This is chemistry, but you divide the 250g
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Radon-219 decays to radon-218 by releasing... a. a positron b.a muon O c. a neutron O d. an electron O e. a proton
MrRa [10]

Answer: Option (c) is the correct answer.

Explanation:

A positron is denoted as ^{0}_{+1}e, a neutron is denoted as ^{1}_{0}n, an electron is denoted as ^{0}_{-1}e, and a proton is denoted as ^{1}_{1}p.

Therefore, when ^{219}Rn will decay into ^{218}Rn this means there occurs decrease in its mass number. Hence, it means a neutron will be releasing during this reaction.

The reaction will be as follows.

                ^{219}Rn \rightarrow ^{218}Rn + ^{1}_{0}n

4 0
3 years ago
Solid calcium oxide reacts with sulfur trioxide gas to produce solid calcium sulfate
antiseptic1488 [7]

<u>Answer:</u> The chemical equation for the given reaction is given below.

<u>Explanation:</u>

When solid calcium oxide reacts with sulfur trioxide gas to produce solid calcium sulfate, the chemical equation follows:

CaO(s)+SO_3(g)\rightarrow CaSO_4(s)

This is the reaction when a metal oxide reacts with non-metal oxide to produce a salt.

By Stoichiometry of the reaction:

1 mole of solid calcium oxide reacts with 1 mole of sulfur trioxide gas to produce 1 mole of solid calcium sulfate.

5 0
3 years ago
How many inches are in 450 cm ?
Karolina [17]
How many inches are in 450 cm?

0.393701 in =  1 cm

0.393701 × 450 = <span>177.16545

450 cm = </span><span>177.16545 in</span>
3 0
3 years ago
10: Convert 77.0 L at 18.0 mmHg to its new volume at standard pressure.
olchik [2.2K]

Answer:

The answer to your question is   V2 = 1.82 l

Explanation:

Data

Volume 1 = 77 l

Pressure 1 = 18 mmHg

Volume 2 = ?

Pressure 2 = 760 mmHg

Process

Use Boyle's law to solve this problem

                P1V1 = P2V2

-Solve for V2

                 V2 = P1V1/P2

-Substitution

                 V2 = (18 x 77) / 760

-Simplification

                 V2 = 1386 / 760

-Result

                 V2 = 1.82 l

5 0
3 years ago
What is the number of elements in 2Ca(OH)2
dem82 [27]
Answer:
3 elements
Calcium,oxygen and hydrogen
5 0
2 years ago
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