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Papessa [141]
3 years ago
8

H E L P M E complete the sentence

Chemistry
2 answers:
Grace [21]3 years ago
8 0

Answer:

where is the question

Explanation:

give the question and then I'll make answer your question

Rudik [331]3 years ago
8 0
Where’s the question? i’d love to help but there’s no question
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suppose a student poured equal volumes of water and naoh in two different flasks. he forgets to label his flasks and is confused
ArbitrLikvidat [17]

The one with higher temperature is the one with NaOH as heatis given off during the neutralization reaction that occurs.

<h3>What is volume?</h3>

Volume can be defined as the amount of space a substance or an objects occupies usually in a closed container.

Volume is measures in litres.

When water is added to dilute acid like HCl, they become more dilute.

When NaOH is added to HCl, a neutralization reaction occurs.

The student will determine the contents of the flasks by adding 10 ml of hcl to each flask. If the NaOH reacts with the Hcl, there will be an increase in temperature.

The increase in temperature is due to the heat of neutralization of the reaction between NaOH and HCl.

Learn more about volume at: brainly.com/question/1972490

#SPJ1

5 0
2 years ago
What changed about the peppered moth population during the second industrial revolution
Marysya12 [62]

Answer:

The months became darker colored and more darker colored moths were sighted.

Explanation:

All of the new air pollution caused the moths to alter there wings and bodies. The moths had no adaptation to this air pollution, causing them to be discolored.

7 0
3 years ago
Read 2 more answers
A drop of vinegar ( a weak acid ) is placed on a sample of each of the materials below. Which will show the most active reaction
professor190 [17]

Answer: Option (B) is the correct answer.

Explanation:

Marble is also known as calcium carbonate and its chemical formula is CaCO_{3}.

When it combines with vinegar then it results in the formation of calcium acetate which is a water soluble compound along with the release of carbon dioxide which occurs in the form of bubbles and water.

The reaction is as follows.

    CaCO_{3} + CH_{3}COOH \rightarrow Ca(CH_{3}COOH)_{2} + H_{2}O + CO_{2}

Whereas vinegar being a weak acid will not react with glass, copper and steel.

8 0
3 years ago
Read 2 more answers
I need help! In an equilibrium reaction with a Keq of 1 × 108 A. products are favored. B. the reaction is nonspontaneous. C. the
scZoUnD [109]
<span>When K is > than 1 products are favored. When q is < less than 1 reactants are favored. 1 x 108 = 108 which is > 1 so products are favored.</span>
7 0
4 years ago
Read 2 more answers
How many grams of aluminum can react with 336g oxygen? 4Al + 3O2 --&gt; 2Al2O3
baherus [9]

Answer: 714 g Al2O3

Explanation: Solution attached

First convert mass of O2 to moles

Do the mole ratio between O2 and Al2O3 from the balanced equation.

Convert moles of Al2O3 to mass using its molar mass.

5 0
3 years ago
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