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ivolga24 [154]
3 years ago
9

What is how fast an objects speed is changing?

Chemistry
1 answer:
bazaltina [42]3 years ago
3 0

I think it's acceleration or velocity

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a bar of gold is melted into liquid the liquid is then poured into a mold to make pieces of jewelry is the process a chemical ch
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Physical change because it's only changing the shape of the gold.
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Is potassium fluoride a covalent bond or ionic bond
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It's an ionic bond! Potassium is a cation, or a metal with a positive charge, and fluoride is an anion, or a nonmetal with a negative charge.

A covalent bond is the bond between two nonmetals.

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7 0
3 years ago
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Identify the FALSE statement. You could summarize our Solar System's development by saying that Choose one:
irina [24]

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D. It formed solely from atoms generated by the Big Bang.

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From the history of the earth and it's solar system, options A to C are all correct ways of summarizing the Solar System's development. Because they have been proven to be in sync with reality of the solar system whereas the Bing bang theory has not done so as we know it says the universe was birthed from a huge explosion called big bang.

4 0
2 years ago
How do substances and mixtures diifer
vlabodo [156]

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hello hope this helps :)

a pure substance consists only of one element or one compound. a mixture consists of two or more different substances, not chemically joined together.

Explanation:

5 0
3 years ago
If 38.6 grams of iron react with an excess of bromine gas, what mass of FeBr2 can form?
Yuki888 [10]

Answer:

›› FeBr2 molecular weight. Molar mass of FeBr2 = 215.653 g/mol. This compound is also known as Iron(II) Bromide. Convert grams FeBr2 to moles or moles FeBr2 to grams. Molecular weight calculation: 55.845 + 79.904*2 ›› Percent composition by element

Explanation:

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3 years ago
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