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3 years ago

Part D

Chemistry

1 answer:

qwelly [4]3 years ago

7 0

Answer:

Explanation:

The number on the top right of the symbol shows ATOMIC NUMBER , if it is written alone only one digit or number overall .

And if the number is also in bottom left then bottom left number will be ATOMIC NUMBER and top right will be MASS NUMBER

Hope this will help you *-*

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4. Describe a solution and tell if the parts are mixed chemically or physically help please will give brainliest

Stels [109]

Hello There!

The solution: salt water
Mix: Physical as you could still separate them

A chemical mix can't be reversed.

Hope This Helps You!
Good Luck :)

- Hannah ❤

5 0

3 years ago

When liquid water evaporates to gaseous water

alina1380 [7]

Answer: liquid water 2

Explanation:

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2 years ago

When solutions of silver nitrate and sodium chloride are mixed, a precipitation reaction occurs. What mass of precipitate can be

Bas_tet [7]

Explanation:

The given precipitation reaction will be as follows.

$AgNO_{3}(aq) + NaCl(aq) \rightarrow AgCl(s) + NaNO_{3}(aq)$

Here, AgCl is the precipitate which is formed.

It is known that molarity is the number of moles present in a liter of solution.

Mathematically, Molarity = $\frac{\text{no. of moles}}{\text{volume in liter}}$

It is given that volume is 1.14 L and molarity is 0.269 M. Therefore, calculate number of moles as follows.

Molarity = $\frac{\text{no. of moles}}{\text{volume in liter}}$

0.269 M = $\frac{\text{no. of moles}}{1.14 L}$

no. of moles = 0.306 mol

As molar mass of AgCl is 143.32 g/mol. Also, relation between number of moles and mass is as follows.

No. of moles = $\frac{mass}{\text{molar mass}}$

0.307 mol = $\frac{mass}{143.32 g/mol}$

mass = 43.99 g

Thus, we can conclude that mass of precipitate produced is 43.99 g.

8 0

2 years ago

1. 750 x 10^3 ng to g

Temka [501]

Answer:

1.750×10^-6 g

Explanation:

we know n is 10^-9. all you have to do is to replace n with 10^-9.

so the answer is

1.750×10^3×10^-9 g

which is equal to 1.750×10^-6 g

if anything is unclear, ask freely.

4 0

2 years ago

Convert 300 kelvin to degree Celsius

Jlenok [28]

Answer: 26.85 degrees

Explanation:

5 0

3 years ago