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almond37 [142]
2 years ago
7

An amount 10.24 kcal of heat is added to a 35.0 g sample of a liquid at 25.00°C. The final temperature is 87.35°C. What is the s

pecific heat of the substance in cal/g°C?
Chemistry
1 answer:
VMariaS [17]2 years ago
8 0

Answer:

45.24

Explanation:

10.24+35=25.24

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Acid rain is composed mainly of the oxides of two elements. give either.
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Use Lewis theory to determine the chemical formula for the compound formed between Sr and N.
mariarad [96]

Answer:

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Explanation:

Hello,

In this case, since the Lewis theory is based on the bonds formation between atoms via the valence electrons, we can verify the chemical formula of the compound formed by strontium and nitrogen by noticing that strontium has two valence electrons as it is in group IIA, for that reason, two nitrogens should be available for bonding. Therefore, since nitrogen is in group VA, it is said that three electrons are required to attain the octet (maximum amount bonded electrons), for that reason, three strontiums are should be available for bonding. In such a way, the formula should be:

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8 0
3 years ago
Write the products of these double-replacement reaction. Then balance each equation. a) NaOH(aq) + Fe(NO3)3 (aq)---&gt; Iron (II
pashok25 [27]

Answer:

3NaOH (aq) + Fe(NO₃)₃ (aq) → Fe(OH)₃ (s) + 3NaNO₃ (aq)

Explanation:

Step 1: RxN

NaOH (aq) + Fe(NO₃)₃ (aq) → Fe(OH)₃ (s) + NaNO₃ (aq)

Step 2: Balance RxN

We need 3 OH's on both sides.

We also need 3 NO₃'s on both side.

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3NaOH (aq) + Fe(NO₃)₃ (aq) → Fe(OH)₃ (s) + 3NaNO₃ (aq)

6 0
3 years ago
Which of the following best describes the relationship between products and reactants in an endothermic reaction?
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Hello!

In an endothermic reaction, The potential energy of the products is greater than the potential energy of the reactants.

Any chemical reaction that absorbs energy is called an Endothermic Reaction. In this reactions, the reactants absorb energy from the surroundings to carry out the reaction. As a result, the products have a higher potential energy than the reactants. Photosynthesis is an example of an Endothermic Reaction, as the plant uses energy from the sun to generate the products. 

Have a nice day!
4 0
3 years ago
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