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GR 10 SCI > GR 10 CHEM NO2 + ACIDS AND BASES > Flashcards

GR 10 CHEM NO2 + ACIDS AND BASES Flashcards

1
Q

a + b =ab

A

addition or synthesis

eg. h2 + o2 = h2o

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2
Q

ab = a+ b

A

decomposition

eg, h2co3 = h2o + co2

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3
Q

a + bc = ac + b

A

single displacement

eg. Zn + CuSO4 = ZnSO4 + Cu

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4
Q

ab + cd = ad + cb

A

double displacement

eg. AgNO3 + KBr = AgBr +KNO3

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5
Q

Combustion is

A

rapid reaction of a substance with oxygen to produce now substances called oxides

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6
Q

combustion equaion or law idk

A

fuel + oxygen = oxide + energy (exothermic energy)

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7
Q

incomplete cumbustion

A

occurs if there isnt enough 02 gas available LMAO L

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8
Q

properties of acids

A

sour tasting
water soluble
reacts with reactive metals

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9
Q

properties of bases

A

bitter tasting
water soluble

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10
Q

HX(S) = H+(AQ) + X (AQ)

A

general formula for acids dissolving in water

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11
Q

X(OH) (S) = X+ (AQ) +(OH)- (AQ)

A

general formula for bases dissolving in water

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12
Q

acids are also called

A

electrolytes

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13
Q

congo red in stomach acid with a PH of 1.52

A

blue/grey

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14
Q

bromothoyal blue in sugar solution with pH of 7

A

pink

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15
Q

neutralization reaction

A

chemical reaction in which acid reacts with base to form salt and water. it is type of double replacement reaction. (e.g. HCl + NaOH = H2O + NaCl)

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16
Q

pH scale

A

used to measure pH. ranges from 0-14, if solution has pH if less than 7, it’s acidic. basic solutions have pH of greater than 7. neutral substances have pH of equal to 7.

17
Q

acid-base indicators

A

used to identify acids and bases by changing colours

18
Q

hydrocarbon

A

A compound that consists of carbon and hydrogen. general equation for combustion of hydrocarbon is CxHy + O2 = CO2 + H2O. hydrocarbon combustions are exothermic.

19
Q

exothermic reaction

A

chemical reaction in which there is net release of energy to surroundings. temperature increases as energy is released into surroundings

20
Q

endothermic reaction

A

chemical reaction in which there is net absorption of energy from the surroundings. temperature decreases as energy is absorbed by system

21
Q

activation energy

A

minimum amount of energy needed for reaction to happen

22
Q

how do u balance a chemical equation

A

number of atoms on the reactant side must equal number of atoms on product side.

law of conservation of mass is reflected in balanced chemical equation.

use coefficients in front of chemical formula

23
Q

coefficients

A

indicate how many molecules are present (in 2S8, 2 is the coefficient)

24
Q

law of conservation of mass

A

in a chemical reaction, the total mass of the substances used is equal to the total mass of the substances produced

GR 10 SCI (4 decks)

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