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3 years ago

Please help me I'll try to give brainliest if I find out how

Chemistry

1 answer:

Vsevolod [243]3 years ago

8 0

Answer:

Acid + Oxide or Hydroxide

Many oxide, hydroxide and carbonate compounds

are insoluble in water, but do react with acid.

Acid + Oxide → Salt + Water

Acid + Hydroxide → Salt + Water

MgO (s) + HNO3 (aq) → Mg(NO3)2 (aq) + H2O (l)

CuOH (s) + HCl (aq) → CuCl (aq) + H2O (l)

Explanation:

lead compounds are the oxides: lead monoxide, PbO, in which lead is in the +2 state; lead dioxide, PbO2, in which lead is in the +4 state; and trilead tetroxide, Pb3O4. Lead monoxide exists in two modifications, litharge and massicot. Litharge, or alpha lead monoxide, is a red or reddish…

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If 30g of HCl is reacted with excess NaOH, and 10g of NaCl is produced, what is the theoretical yield of the experiment?

KATRIN_1 [288]

1. %yield = actual yield / theoretical yield x 100
= 3 g / 4. 46 g x 100
= 62.11 % percent yield

Hope This Helps! :3

4 0

3 years ago

David says, "Pure honey has nothing else added." Susan says ,"The honey is not really pure. It is mixture of many subsatnces . W

Olenka [21]

Really, both David and Susan are right; they were using the term "pure" in different ways. David likely meant "pure honey" in the sense that the honey was not altered or had any additives. Susan used pure as in a "pure substance" in chemistry. Susan is also right, because honey is a medley of carbohydrates, proteins, amino acids, and vitamins and minerals. Chemically, honey is not a pure substance- it's a mixture.

8 0

3 years ago

Determine the number of atoms in 51.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99 g.)

miskamm [114]

Answer:

The answer is

<h3>1.340 × 10²⁴ sodium atoms</h3>

To find the number of atoms of sodium we use the formula

N = n × L

where

n is the number of moles

N is the number of entities

L is Avogadro's constant which is

$6.02 \times {10}^{23}$

We need to find the number of moles first

The formula is

$n = \frac{m}{M}$

where

M is the molar mass

m is the mass

n is the number of moles

From the question

M = 22.9 g/mol

m = 51.0 g

$n = \frac{51}{22.9}$

n = 2.227 moles

So the number of sodium atoms is

$N = 2.227 \times 6.02 \times {10}^{23}$

We have the final answer as

<h3>1.340 × 10²⁴ sodium atoms</h3>

Hope this helps you

3 0

3 years ago

Plz I need help!!!!!!!!!!!

Marat540 [252]

Answer:

Your help from me is a good luck! :)

Explanation:

Lol sorry I don't know the answer and don't want to tell you something wrong. Good luck though. Have a great day!

6 0

2 years ago

PLSSSSSSSSSSSSSSSSSSSSSSSSSS HELP

BaLLatris [955]

Answer:

D. A process that breaks down large rocks into smaller pieces.

Explanation:

Physical weathering if referred to the process of rocks breaking apart without changing their chemical composition. If you look at the other answers, none of them match the description of physical weathering.

3 0

3 years ago

Read 2 more answers

Please help me I'll try to give brainliest if I find out how​

Please help me I'll try to give brainliest if I find out how