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aalyn [17]
4 years ago
10

Given the law of conservation of energy, what happens when a 200°C iron bar is placed in thermal contact with a 30°C block of wo

od?
Chemistry
1 answer:
ra1l [238]4 years ago
5 0

Answer:

A Energy leaves the iron bar and enters the wood until the temperature are equal.

Explanation:

According to the law of conservation of energy or the first law thermodynamics energy neither be created nor destroyed, energy is transferred from one form to another form.

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How many molecules of CaCi2 are equivalent to 75.9 grams
horsena [70]
<em>M CaCl₂: 40+(35,5×2) = 111 g/mol</em>


6,02·10²³ molecules ---------- 111g
X molecules --------------------- 75,9g
X = (75,9×<span>6,02·10²³)/111
X = <u>4,116</u></span><span><u>·10²³</u> molecules of CaCl</span>₂

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Please help! Ionic and covalent compound.
mrs_skeptik [129]
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These answers are based on if there was a nonmetal and nonmetal it’s Covalent and if there was a metal and nonmetal it was Ionic I didn’t use the electro negativity for the answers that has more than two elements, if the answers had more than two elements they have a ? Next to their answer.

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3 0
2 years ago
What type of bond would be formed between hypothetical elements X and Y in the the compound XY based on their electronegativity
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The bond is polar covalent because the difference in electronegativity is greater than 0.4, but  less than 1.7.

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The electronegativity difference between the two atoms as shown in the question is 1.55. This means that the bond is polar covalent because the difference in electronegativity is greater than 0.4, but  less than 1.7.

Learn more: brainly.com/question/2510654

5 0
2 years ago
What is the electron of (Kr)5s24d10
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