2 years ago

Which of the following is a difference between naming ionic and covalent compounds?

1 answer:

6 0

An ion with fewer electrons than its neutral atom is called a(n) cation. The charge of an ion with more electrons than its neutral atom is. negative.

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What is the [H+] of a solution with a pH of 3? Use a scientific calculator.

Mariulka [41]

Answer:

1 x 10⁻³.

Explanation:

∵ pH = - log[H⁺]

3 = - log[H⁺].

log[H⁺] = -3.

∴ [H⁺] = 1 x 10⁻³.

3 0

3 years ago

A gas evolved during the fermentation of sugar was collected at 22.5°C and 702 mmHg. After purification its volume was found to

miskamm [114]

Answer:

A) 0.95 mol

Explanation:

We will assume the gas given off in the fermentation is an ideal gas because that allows us to use the ideal gas equation.

PV = nRT

First let's convert all measurements to units that we can use

P = 702 mmHg * 1 atm/760 mmHg = 0.92368 atm

V = 25.0 L

R = 0.08206 L-atm/mol-K

T = 22.5 °C +273.15 = 295.65 K

PV = nRT

0.92368 atm * 25.0 L = n * 0.08206 L-atm/mol-K * 295.65 K

n = 0.9518 mol

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3 years ago

A litter of pigs is born. Three are female and three are male. Which set of symbols correctly describes the gender of each pigle

arlik [135]

XX is female and X,Y is male so the answer is
XX, XY, XX, XY, XY, XX

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3 years ago

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A student observes that a patch of grass in a garden can reproduce without seed formation by using the structures that grow hori

liraira [26]

RUNNERS , well that what i would pick

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2 years ago

Which of these elements has the smallest atomic radius?

nadya68 [22]

Answer:

3. be

Explanation:

it shows it in the word search

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3 years ago