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3 years ago

A positivley charged atom has: gained protons, gained electrons, lost electrons, lost protons

Chemistry

2 answers:

k0ka [10]3 years ago

7 0

Gained protons and gained electrons

Olenka [21]3 years ago

4 0

Answer:

lost electrons

Explanation:

A positively charged atom has lost electrons because if an atom loses electrons it bring the charge above 0 and a negatively charged atom would have gained electrons because the overall charge is negative so more electrons would be added.

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How many moles of ammonia gas occupy 50 mL at at 700 kPa and 30.0 0C?

nalin [4]

For the conversions

I will start with pressure
1atm=101.3kPa
x =700kPa
x=700kPa/101.3kPa
x=6.91atm

Temperature
273K+30.00C
303K

Volume
1L=1000ml
x =50ml
x=0.05L

PV=nRT
6.91*0.05=n*0.08206*303
0.3455=24.86418n
0.3455/24.86418=n
0.0138=n
number of moles = 0.0138moles

Note: 0.08206 is the gas constant in this case

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3 years ago

What three compounds are produced by the combustion of hydrocarbon fuels?

MakcuM [25]

The most common hydrogen carbon fuels are ethanol and diesel and their product of combustion is carbon dioxide, water and heat .

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3 years ago

How do synthesis reactions and a decomposition reactions differ

Minchanka [31]

A synthesis would be A+B-->AB its combining, decomposition is AB-->A+B, its the breaking up of a substance.

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3 years ago

Si 100 monedas tienen una masa total de 226.13g. Cual es la masa de una moneda

galben [10]

The mass of a coin : 2.2613 g

<h3>Further explanation </h3>

Algebraic expressions in mathematics are a combination of coefficients, numbers, variables, constants and arithmetic operations such as addition, subtraction, multiplication, and division.

The main composition of algebraic expressions are:

1. phrases

algebraic forms separated by arithmetic operations

consists of one phrase (monomial) to many phrases (polynomial)

2. variables

is a value that can be changed, can be in the form of letters, for example, x, y, a, b, etc.

3. constants

is a fixed value, can be a number

4. arithmetic operations ⇒ +, - , : , x

<em>If 100 coins have a total mass of 226.13g. What is the mass of a coin</em>

We can make this statement in the form of an algebraic equation :

100 coins=226.13 g

then the mass of a coin :

$\tt \dfrac{1}{100}\times 226.13~g=2.2613~g$

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3 years ago

Which statement is true about the patterns shown on the electromagnetic spectrum?

Rudiy27

A. As wavelength increases, radiant energy and frequency increase.

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2 years ago