All categories

2 years ago

Which statement is true about sodium hydroxide (NaOH)?

2 answers:

6 0

NaOH is not a salt cuz' its not neutral. Its -OH part increases the conc of hydroxide ions. So ans is It is a base because it increases the concentration of hydroxide ions.

Naya [18.7K]2 years ago

3 0

It's a base because it increases the concentration of hydroxid ions

You might be interested in

PPLLLSSSSSSS HELLLPPP!!!!! What is runoff?

mr Goodwill [35]

Answer:

runoff is he draining away of water (or substances carried in it) from the surface of an area of land, a building or structure, etc.

Explanation:

4 0

2 years ago

Read 2 more answers

Student A performed gravimetric analysis for sulfate in her unknown using the same procedures we did . Results of her three tria

soldi70 [24.7K]

Answer:

The answer is Sodium Sulfate = Na2SO4

Explanation:

Molar mass of sulfate = 1 (S) + 4 (O) = 1 (32) + 4 (16) = 32 + 64 = 96

Molar mass of sodium sulfate = 2 (23) + 96 = 46 + 96 = 142

% of Sulfate = (96/142)*100 = 67.6%

Percent mistake in Studen A,

(I) % mistake = (67.6 - 68.6)/67.6 = 1.48

(ii) % mistake = (67.6 - 66.2)/67.6 = 2.07

(iii) % mistake = (67.6 - 67.1)/67.6 = 0.74

For understudy B

(I) % mistake = (67.6 - 66.7)/67.6 = 1.33

(ii) % mistake = (67.6 - 66.6)/67.6 = 1.48

(iii) % mistake = (67.6 - 66.5)/67.6 = 1.63

Sutdent An is some how exact.

Understudy B is exact however not precise.

8 0

3 years ago

How many isomeric esters including structural isomers and stereoisomers can be made with the molecular formula C5H10O2 if methan

defon

Methanoic acid has a molecular formula of HCOOH, when form an ester it's HCOO-, so the rest of the ester is -C4H9, a saturated 4 carbon chain. As shown in the attached diagram, there are 4 structural isomers, and the third isomer has 2 stereoisomers. So the answers is D:5.

3 0

3 years ago

What is the relationship between DNA and proteins?

gayaneshka [121]

Explanation:

At first sight, I could recognize you

As if we were calling for each other

The DNA in my blood vessels tell me

That it’s you I was looking all over for

7 0

2 years ago

The prefix ‘kilo-‘ means a thousand.

Blababa [14]

Answer:

0.97 kg, 1.0kg

Explanation:

As you have mentioned in the question, to convert kilo-gram to grams, this conversion is used, 1 kilogram = 1,000 grams

Initially, when one has to convert from one unit to another, there is a lot of confusion. To avoid any such, multiply and divide the number with units to which it has to be converted.

Here,

970 g = $970 g \times\frac{1 kg}{1 kg}$

This makes no difference to the number.

970 g = $970 g \times\frac{1 kg}{1000 g}$

As, 1 kg= 1,000 g

970 g = $\frac{970}{1000} kg$

970 g = 0.97 kg

Rounding this off to the nearest tenth of a kilogram.

The tenths place is immediately to the right of the decimal point.

Here, 9 is at the tenth's place. Round the tenth's place up if the digit at hundredth's place is greater than or equal to 5. Since, 7 > 5, up the number at tenth's place.

So, answer is 1.0 kg

8 0

2 years ago