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Marta_Voda [28]
3 years ago
14

Gloria is writing the chemical formula for a compound using its chemical name. She has just identified the names of the elements

in the compound. What tool will she use next?
Chemistry
2 answers:
KengaRu [80]3 years ago
6 0

Answer:

the periodic table

Explanation:

verified correct

Dennis_Churaev [7]3 years ago
4 0

<span>Gloria is writing the chemical formula for a compound using its chemical name. She has just identified the names of the elements in the compound. The tool that she will need to use next is a textbook to learn the IUPAC naming of compounds or a handbook of chemical compounds.</span>

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Magnesium metal a gray solid, is heated in a crucble in the presence of oxygen
Vesnalui [34]

Answer:

powder

Explanation:

ok

3 0
3 years ago
What happens to an ocean current when it hits a continent? a. It changes direction. c. It moves toward the equator. b. It moves
Alex Ar [27]

Answer: I think it is D

Explanation:

7 0
3 years ago
How many moles of TNT would be detonated if you used 539.88 grams of TNT? The structure of TNT is C7H5N3O6. Round your answer to
Kruka [31]

Answer:

Moles of TNT = 2.38 moles

Explanation:

First , calculate the molar mass of the compound TNT

The formula is : C7H5N3O6

How to calculate molar mass?

Molar mass : It is the mass of substance in grams which is present in 1 mole of the compound.It is calculated by:

Molar mass = Number of atoms x the atomic mass of the element

Atomic mass of the elements are given below :

C = 12.0107

H = 1.0079

N = 14.0067

O = 15.9994

Molar mass of C7H5N3O6 =

= (7 x C) + (5 x H) + (3 x N) + (6 x O)

= 7(12.0107) +5(1.0079) + 3(14.0067) + 6(15.9994)

Molar mass = 227 .13 gram/mole

Mole are calculated using the formula:

Moles =\frac{given\ mass}{Molar\ mass}

Given mass = 539.88 grams

Molar mass = 227.13 g/mole

Moles =\frac{539.88}{227.13}

= 2.3769

Moles = 2.38 moles

5 0
3 years ago
The reaction of aluminum with bromine is shown here. The equation for the reaction is
m_a_m_a [10]
Answer is (b)

2,3,1 is the stoichiometry

The values in front of the elements are the stoichiometric values
(Since Al2Br6 has no value in front, it's considered 1)
5 0
3 years ago
Colorful fireworks often involve the decomposition of barium nitrate and potassium chlorate and the reaction of the metals magne
Fynjy0 [20]

Fireworks owe their colors to reactions of combustion of the metals present. When Mg and Al burn, they emit a white bright light, whereas iron emits a gold light. Besides metals, oxygen is necesary for the combustion. The decomposition reactions of barium nitrate and potassium chlorate provide this element. At the same time, barium can burn emitting a green light.

(a) Barium nitrate is a <em>salt</em> formed by the <em>cation</em> barium Ba²⁺ and the <em>anion</em> nitrate NO₃⁻. Its formula is Ba(NO₃)₂. Potassium chlorate is a <em>salt</em> formed by the <em>cation</em> potassium K⁺ and the <em>anion</em> chlorate ClO₃⁻. Its formula is KClO₃.

(b) The balanced equation for the decomposition of potassium chloride is:

2KClO₃(s) ⇄ 2KCl(s) + 3O₂(g)

(c)  The balanced equation for the decomposition of barium nitrate is:

Ba(NO₃)₂(s) ⇄ BaO(s) + N₂(g) + 3O₂(g)

(d) The balanced equations of metals with oxygen to form metal oxides are:

  • 2 Mg(s) + O₂(g) ⇄ 2 MgO(s)
  • 4 Al(s) + 3 O₂(g) ⇄ 2 Al₂O₃(s)
  • 4 Fe(s) + 3 O₂(g) ⇄ 2 Fe₂O₃(s)

5 0
3 years ago
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