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Fynjy0 [20]
2 years ago
10

Which milligram quantity contains a total of four significant figures

Chemistry
2 answers:
denis23 [38]2 years ago
7 0
D has a total of four significant figures.
Ksenya-84 [330]2 years ago
3 0

Answer:

D

Explanation:

The first 0 is sandwiched between the 3&1 and a ending 0 that is after the decimal is significant.

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For each of the following compounds, state whether it is ionic or covalent. If it is ionic, write the symbols for the ions invol
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(A) NF3 covalent compound

(B) BaO ionic bond.

(C) NH4)2CO3 ionic bond.

(D) Sr(H2PO4)2 covalent compound

(E) IBr covalent compound

(F) Na2O  ionic bond.

<h3>What are a covalent compound and ionic bond?</h3>

Covalent bonds form when two or more additional nonmetals combine. For instance, both hydrogen and oxygen are nonmetals, and when they connect to make moisture, they do so by forming covalent bonds. Combinations that are composed of only non-metals or semi-metals with non-metals will demonstrate covalent bonding and will be classified as molecular combinations.

  • As a broad rule of thumb, combinations that involve a metal binding with either a non-metal or a semi-metal will show ionic bonding. Therefore, the compound created from sodium and chlorine will be ionic (a metal and a non-metal). Nitrogen monoxide (NO) will be a covalently bound molecule (two non-metals), silicon dioxide (SiO2) will be a covalently bound molecule (a semi-metal and a non-metal) and MgCl2 will be ionic (a metal and a non-metal).
  • A polyatomic ion is an ion comprised of two or more particles that have a commission as a group (poly = many). The ammonium ion (see figure below) consists of one nitrogen atom and four hydrogen atoms. Concurrently, they constitute a single ion with a 1+ charge and a formula of NH4+. The carbonate ion (see figure below) consists of one carbon particle and three oxygen atoms and maintains a comprehensive charge of 2−. The procedure of the carbonate ion is CO32−.

To learn more about covalent compound, refer to:

brainly.com/question/3447218

#SPJ9

5 0
1 year ago
The small intestine shown below contains lymphatic vessels but no capillaries. Which nutrient will be absorbed by this small int
Bumek [7]

Answer:

fatty acids

Explanation:

8 0
2 years ago
Read 2 more answers
What is s phisical change
cestrela7 [59]
Physical change is where u change physically or on the "outside" hope this helps, have a great day!
3 0
3 years ago
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Sulfur burns in the air to form 33.6L of sulfur dioxide. (S = 32, O =16, 64g of sulfur dioxide has 22.4L, 32g of oxygen has 22.4
ivolga24 [154]

The mass of oxygen reacted/required in this reaction is obtained as 48g.

<h3>What is stoichiometry?</h3>

The term stoichiometry has to do with mass- volume or mass - mole relationship which ultimately depends on the balanced reaction equation.

Now, we have the reaction; S + O2 ------>SO2

If 1 mole of sulfur dioxide contains 22.4 L

x moles of sulfur dioxide contains 33.6L

x = 1.5 moles of sulfur dioxide.

Since the reaction is 1:1, the number if moles of oxygen required/reacted is 1.5 moles.

Mass of oxygen required/reacted = 1.5 moles * 32 g/mol = 48g

Learn more anout stoichiometry: brainly.com/question/9743981

8 0
2 years ago
Children tend to resemble their parents in many ways; they may have like eye color, hair texture, height, or skin tone. This is
weeeeeb [17]

black would be BB .

dominant gene is B.

phenotyope is where it says white fur.

recessive gene is b.

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2 years ago
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