All categories

3 years ago

Write true or false next to each of these statements.

Chemistry

1 answer:

Serggg [28]3 years ago

3 0

Answer:

a) False ( all metals are not magnetic for ex - gold is not magnetic )

b) false ( Diamond is a solid non metal still it shine)

c ) False ( mercury metal is liquid at room temperature)

d) True

e) False (Non metals are bad conductor of heat and electricity )

You might be interested in

In a chemical reaction sodium and chlorine react to form sodium chloride. Which term names the sodium?

Damm [24]

Reactant is the answer
hope it helps

6 0

4 years ago

Read 2 more answers

Can anyone check my work and see if it is correct? If not, may someone help me?

shusha [124]

It looks all correct to me, great job!

6 0

3 years ago

If one adds 0.1 mol of the weak acid hf (pk_a = 3.2) to a solution with a ph = 2, which species would be most abundant and how m

zavuch27 [327]

$F^{-}$ is most abundant and 6310 times more than HF.

<h3>What is a strong and weak acid?</h3>

When an acid is dissolved in water, all of its molecules disintegrate, making the acid powerful.

When an acid is dissolved in water, only a small number of its molecules disintegrate, making the acid weak. Strong acids have a lower pH than weak acids.

The powerful acids include perchloric acid, chloric acid, nitric acid, sulfuric acid, hydrobromic acid, and hydroiodic acid.

Given:

Pka=3..2

pH=7

Let the volume be 1 liter

[HF]=01 M

$pH=pka+log \frac{F^{-}}{HF} \\\\7=3.2+log\frac{F^{-}}{HF} \\3.8=log\frac{F^{-}}{HF}\\ \frac{F^{-}}{0.1}=10^{3.8} \\F^{-}=630.95 M$

Now,

$\frac{F^{-}}{HF}=\frac{630.95}{0.1}\\ =6309.57$

F-:HF= 6309.57:1

Therefore, the most abundant is $F^{-}$ and has 6310 times more than HF is $F^{-}$ .

To know more about strong and weak acids, visit: brainly.com/question/12811944

#SPJ4

4 0

2 years ago

What information would you find on a WHIMIS label?

Nady [450]

Answer/explanation:

Product identifier – the brand name, chemical name, common name, generic name or trade name of the hazardous product.
Initial supplier identifier – the name, address and telephone number of either the Canadian manufacturer or the Canadian importer.

8 0

3 years ago

1. What are elements and compounds? Give an example of each.

12345 [234]

Answer:

Well elements are chemical substances while a compound consists of two or multiple elements put together.

Explanation:

7 0

3 years ago

Read 2 more answers