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alexandr402 [8]
3 years ago
6

When you dissolve an antacid tablet in water and it produces bubbles, what kind of change is this?

Chemistry
1 answer:
prisoha [69]3 years ago
3 0

Answer: B. a chemical change

Explanation:

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When 1. 0 l of 0. 00010 m naoh and 1. 0 l of 0. 0014 m mgso4 are mixed, would a precipitate be formed? show work
koban [17]

When 1. 0 l of 0. 00010 m NaOH and 1. 0 l of 0. 0014 m mgso4 are mixed, there will be no precipitate formed.

<h3>What is a precipitate?</h3>

The precipitate is the solid concentration of a substance that is collected over a solution.

First, we determine the concentration of magnesium and hydroxide

(Mg2+) = 7.00 × 10⁻⁴

(OH−) = 5.00 × 10⁻⁵

Now, we calculate the solubility quotient

Qc = (Mg2+) (OH−) ²

Qc = 7.00 × 10⁻⁴ x (5.00 × 10⁻⁵)²

Qc = 1.75 x 10⁻¹²

The solubility product of the magnesium hydroxide is 1.80 x 10⁻¹¹ which is more than the solubility quotient. Thus, there will be no precipitate form.

Thus, there will be no precipitate formed because the solubility quotient we calculated is less than the solubility product.

To learn more about precipitate, refer to the below link:

brainly.com/question/16950193

#SPJ4

5 0
2 years ago
Question 4 (higher question)
Jet001 [13]

Answer:

Explanation:

Describe means you should recall facts, events or processes accurately. You might need to give an account of what something looked like, or what happened.

Explain means you need to make something clear, or state the reasons for something happening.  

Compare means you need to describe similarities and differences between things. If you are asked to compare X and Y, write down something about X and something about Y, and give a comparison. Do not just write about X only or Y only.

Evaluate means you must use information supplied, or your own knowledge, to consider the evidence for and against or to identify strengths and weaknesses. You must then complete your answer with a conclusion, stating which is better and why, for example.

8 0
3 years ago
Match the terms to the correct 
Nadusha1986 [10]
This type of energy travels through vibrations on waves = 7. sound energy

This is the energy found in the nucleus of an atom = 9. nuclear energy

This type of energy can be transferred in three different ways = 6. thermal energy

This is the term used when energy changes from one form to another = 10. energy conversions

This has to do with the speed of an object and how much mass it has = 2. kinetic energy

This can be either kinetic or potential and has to do with the energy of position and motion of an object = 1. mechanical energy

This type of energy is stored energy = 3. potential energy

This is radiant energy from the sun = 5. light energy

This is energy that is transferred by the movement of electrons through a conductor = 4. electrical energy 

This type of energy is often found in things like batteries or food = 8. chemical energy

hope this helps
6 0
3 years ago
Read 2 more answers
Can someone please help me please dont scroll
Nostrana [21]
Quantitative is anything that is relating to a number value. Think “quantity”

Example:

1. There are 5 ml of water
2. There are 3 beakers
3. It takes 30 minutes for the reaction

Qualitative is about characteristics that can be described

Example

1. The liquid is green
2. The solution turned into a gas
3. Bubbles were produced
4 0
2 years ago
A student determines the molar mass of a compound by the method used in this experiment. She found the temperature of the ice wa
cluponka [151]

Answer:

139.94 grams of solute is present in  kilograms of water

Explanation:

Temperature of the ice water = T = 1.0°C

Temperature of the mixture = T_f =-3.0°C

Depression in freezing point \Delta T_f=T-T_f

\Delta T_f =1.0°C-( -3.0°C)=4°C

\Delta T_f=k_f\times m=k_f\times \frac{\text{Moles of solute}}{\text{mass of solvent (kg)}}

m = molality of the solution

k_f = Molal depression constant

4^oC=1.86^oC kg/mol\times \frac{\text{Moles of solute}}{0.0793 kg}

Mole of solute = 0.1705 moles

Mass of solute = 11.1 g

Moles of solute = 0.1705 mol=\frac{11.1 g}{M}

Molar mass of the solute= M

M = 65.088 g/mol

Molality of the solution = m = \frac{0.1705 mol}{0.0793 kg}

m\times M=\frac{0.1705 mol}{0.0793 kg}\times 65.088 g/mol=139.94g of solute /kg of water

139.94 grams of solute is present in  kilograms of water

3 0
3 years ago
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