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3 years ago

Highly liquid lava forms wide, shield-like mountains. True False

Chemistry

1 answer:

timurjin [86]3 years ago

5 0

This answer is True :)

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Pb(BrO3)2 is a ionic compound,covalent compound, or Acid

morpeh [17]

Pb(BrO3)2 is an ionic compound, Pb is a metal, (BrO3) is a non-metal part.

Pb(BrO3)2 is a salt, all salts are ionic compounds.

3 0

3 years ago

According to the usda food standards and labeling, vinegar must contain at least 4% (m/m) acetic acid. does your vinegar sample

Anastasy [175]

Answer:

A for me

Explanation:

I dont know what you mean by this as this is an opinon question

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2 years ago

Can chopper be changed to gold? Explain

Firlakuza [10]

Answer:

A team of Chinese researchers have turned cheap copper into a new material “almost identical” to gold, according to a study published in peer-reviewed journal Science Advances on Saturday. The fast-moving ionized particles blasted copper atoms off the target.

hope this helps

have a good day :)

Explanation:

7 0

3 years ago

if 1.386 g of mg ribbon combusts to form 2.309 g of oxide product, calculate the experimental mass percent of oxygen from this d

Pavlova-9 [17]

1.386 g of Mg ribbon combusts to form 2.309 g of oxide product. The mass percent of oxygen in the oxide is 40.0 %.

Let's consider the reaction for the combustion of Mg.

Mg + 1/2 O₂ ⇒ MgO

1.386 g of Mg combusts to form 2.309 g of MgO. We want to determine the mass of oxygen in MgO. According to Lavoisier's law of conservation of mass, matter is not created nor destroyed over the course of a chemical reaction. Then, the mass of Mg in the reactants is equal to the mass of Mg in MgO. The mass of the magnesium oxide is the sum of the masses of magnesium and oxygen. The <u>mass of oxygen in the oxide</u> is:

$mMgO = mMg + mO\\mO = mMgO - mMg = 2.309 g - 1.386 g = 0.923 g$

We can calculate the mass percent of O in MgO using the following expression.

$\% O = \frac{mO}{mMgO} \times 100\% = \frac{0.923 g}{2.309g} \times 100\% = 40.0 \%$

You can learn more about mass percent here: brainly.com/question/14990953

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2 years ago

Which is TRUE of the reactants in this displacement reaction? Fe + 2HCI --> FeCI2 + H2

Masteriza [31]

I would go with C, because you would always start with products and end with reactants.

7 0

3 years ago

Read 2 more answers