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stich3 [128]
3 years ago
11

R-COOH compounds behave as _____. A) bases B) acids C) esters D) ketones

Chemistry
1 answer:
lakkis [162]3 years ago
6 0
<span>R-COOH 
-COOH  is the group, that shows that the substance is an organic acid.

Answer is B. Acids
</span>
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Why does increasing the temperature of water increase the rate of chemical reaction in the graph
Nady [450]

Answer:

Explanation:

Increasing the temperature increases reaction rates because of the disproportionately large increase in the number of high energy collisions.

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3 years ago
Which of the following equations demonstrates an actual chemical reaction that forms a new substance? A.ZN + 2HCl → 2NCl2 + H2 B
alukav5142 [94]

Answer:

A

Explanation:

The first option is the only option where new products are formed.

In the D option no new product is formed.

Same goes with option C.

In B no new products are formed.

Change is said to be taken place only with formation of new products from reactants.

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many cars have gas filled shock absorbers to give the car and it’s occupants a smooth ride. if a four passenger is loaded with f
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3 years ago
Which element is this.Its shiny,Is solid at room temperature, has atoms with two valence electrons?A:Lithium B:Strontium C:Alumi
tatyana61 [14]

Answer:

Stronium

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It is a metal (and shows classic physical proerties). It also belongs to the second family, meaning it has two valence electrons.

4 0
3 years ago
How many grams of ice at -13 deg C must be added to 711 grams of water that is initially at a temperature of 87 deg C to produce
Basile [38]

Answer:

The answer to your question is m = 4.7 kg

Explanation:

Data

Ice                                   Water

mass = ?                          mass = 711 g

T₁ = -13°C                         T₁ = 87°C

T₂ = 10°C                         T₂ = 10°C

Ch = 2090 J/kg°K          Cw = 4180 J/kg°K

Process

1.- Convert temperature to kelvin

T₁ = 273 + (-13) = 260°K

T₁ water = 87 + 273 = 360 °K

T₂ = 10 + 273 = 283°K

2.- Write the equation of interchange of heat

                 - Heat lost = Heat absorbed

               - mwCw(T₂ - T₁) = miCi(T₂ - T₁)

-Substitution

              - 0.711(4180)(10 - 87) = m(2090)(10 - (-13))

- Simplification

                            228842.46 = 48070m

                            m = 228842.46/48070

-Result

                            m = 4.7 kg

4 0
3 years ago
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