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4 years ago

What method do water buffalo use to fight the lions

Chemistry

1 answer:

sertanlavr [38]4 years ago

3 0

Answer:

Tsaro lions are called swamp cats. They hunt water buffalo by stampeding them into the water where they can attack and kill the young or weak members of the herd. After the initial stampede, the lions herd the buffalo through the water and relentlessly pursue them for hours at a time

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How many grams of fluorine are needed to react with 8.5g of phosphorus?

love history [14]

Step 1: write the equation:

P₄(s) + 6F₂(g) → 4PF₃(g)

Step 2: Molar mass of P₄ = 30.97 g/mol × 4 = 123.88 g/mol

Step 3: Number of moles of phosphorus

n = m/M

n = 8.5 g/123.88g/mol

n = 0.07 moles

Step 4: 0.07 × 12 = 0.84 moles of fluorine.

Fluorine is diatomic gas so we multiplied the number of moles by 12.

Step 5: To find the mass of fluorine we multiply the number of moles with the molar mass.

Mass of fluorine = 0.84 × 228

= 191.52 grams.

4 0

4 years ago

The following figure represents the formation of an ionic compound. Substances A and B are initially uncharged, but when mixed e

Brums [2.3K]

Answer:

This question is incomplete

Explanation:

This question is incomplete but some general explanation provides a clear answer to what is been asked in the question.

An ionic/electrovalent compound is a compound whose constituent atoms are joined together by ionic bond. Ionic bond is a bond involving the transfer of valence electron(s) from an atom (to form a positively charged cation) to another atom (to form a negatively charged anion). The atom transferring is usually a metal while the atom receiving is usually a non-metal.

For example (as shown in the attachment), in the formation of NaCl salt, the sodium (Na) transfers the single electron (valence) on it's outermost shell to chlorine (Cl) which ordinarily has 7 electrons on it's outermost shell but becomes 8 after receiving the valence electron from sodium. It should also be noted that Na is a metal while Cl is a non-metal.

6 0

3 years ago

Which of these materials requires the most heat to raise its temperature by one degree

AlladinOne [14]

Answer:

Water ______________________________________________

3 0

3 years ago

The mass of an electron is close to:<br> A. 0.00055u. B. 0.05u. C. 10-10<br> u. D. 0.0001u

Debora [2.8K]

Answer:

A. 0.0005u

Explanation:

The mass of an electron in amu = 9.1*10-311.66*10-27=0.0005u.

7 0

3 years ago

Read 2 more answers

What is the answer for those questions plz ,help

marysya [2.9K]

Answer:

1) 1.51 × 10²³ particles of Mg

2) 0.54 × 10⁻³ moles

Explanation:

Given data:

Number of moles of Mg = 0.250 mol

Number of representative particles = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

1 mol = 6.022 × 10²³ particles

0.250 mol × 6.022 × 10²³ particles / 1 mol

1.51 × 10²³ particles of Mg

Given data:

Number of moles of lead = ?

Number of atoms of lead = 3.25×10²⁰ atoms

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

1 mol = 6.022 × 10²³ atoms

1 mol × 3.25×10²⁰ atoms/ 6.022 × 10²³ atoms

0.54 × 10⁻³ moles

6 0

3 years ago