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malfutka [58]
3 years ago
12

Which type of reaction has the general formula of AB + CD → AD + CB?

Physics
1 answer:
scZoUnD [109]3 years ago
6 0

Answer:

AB + CD \rightarrow AD + CB is a replacement reaction.

Explanation:

A reaction which involves replacement of chemical species of two or more reactant molecules is known as replacement reaction.

In the reaction, , B is replaced by D and D is replaced by B. Hence, this reaction is a replacement reaction.

A synthesis reaction is a reaction in which two or more species combine to form a single product.

A decomposition reaction is a reaction in which a chemical specie decomposes or breaks to give different products.

Oxidation reaction results in a change in the oxidation state of chemical species involved in the reaction. Therefore, this reaction is not an oxidation reaction as no change in oxidation state is given

we can conclude that  is a replacement reaction.

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There is a(n) __________ relationship between an object's weight and its mass.
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There is a direct relationship between between an object's weight and its mass.

Weight is actually the force of gravity on the object's mass and it can be calculated by multiplying the object's mass and the acceleration due to gravity. The higher the mass, the higher the weight and the lower the mass, the lower the object's weight. Thus, the relationship is direct.
 
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3 years ago
.A coin rolls off the edge of a table. The coin
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Answer:

Apply the following formulae horizontally And get A value for time

Remember horizontal acceleration is zero

s  = ut +  \frac{1}{2}a {t}^{2}   \\ 0.8 = 1.7 \times t \\  \frac{0.8}{1.7}  = t \\ t = 0.47s

and then to find the height apply the same above equation vertically...remember vertical initial velocity is zero

s = ut +  \frac{1}{2} a {t}^{2}  \\ s =  \frac{1}{2}  \times 10 \times (0.47) ^{2}  \\ s = 1.1045m

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2 years ago
A psychologist is interested in exploring the effect tutorial support on students academic performance and assign students in to
NikAS [45]

Answer:

The dependent variable is academic performance

The independent variable is the presence/absence of tutorial support

The control group are students who did not get the tutorial support.

The experimental group were students that got the tutorial support

Explanation:

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The control group are students who did not receive the tutorial support while the experimental group are students that received the tutorial support.

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5 0
3 years ago
A digital signal differs from an analog signal because it a.consists of a current that changes smoothly. b. consists of a curren
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d.it is used in electronic devices

7 0
3 years ago
A 23.9 g sample of iridium is heated to 89.7 oC, and then dropped into 20.0 g of water in a coffee-cup calorimeter. The temperat
Nikolay [14]

Answer:

The specific heat capacity of iridium = 0.130 J/g°C

Explanation:

Assuming no heat losses to the environment and to the calorimeter,

Heat lost by the iridium sample = Heat gained by water

Heat lost by the iridium sample = mC ΔT

m = mass of iridium = 23.9 g

C = specific heat capacity of the iridium = ?

ΔT = change in temperature of the iridium = 89.7 - 22.6 = 67.1°C

Heat lost by the iridium sample = (23.9)(C)(67.1) = (1603.69 C) J

Heat gained by water = mC ΔT

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C = 4.18 J/g°C

ΔT = 22.6 - 20.1 = 2.5°C

Heat gained by water = 20 × 4.18 × 2.5 = 209 J

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7 0
3 years ago
Read 2 more answers
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