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3 years ago

What is the difference between a scientist theory and a scientific law

Chemistry

1 answer:

Andru [333]3 years ago

3 0

Answer:

A scientific theory is a widely accepted belief on why something happens in the natural world while a scientific law is proven to a fact that shows what happens.

Explanation:

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HELLPP DUE TODAY ONLY 2 questions!!!!! WILL MARK YOU BRAINLIST AND 20 points

mihalych1998 [28]

Explanation:

2CO (g) + O2 (g) → 2CO2 (g) ∆H = –566.0 kJ exothermic

2SO2(g) + O2(g) <=> 2SO3(g). Delta H = -198.2 kJ/mol. exothermic

7 0

3 years ago

How might a theory relate to a model

oksian1 [2.3K]

These are related but can be independent, because it is possible to, the theories are studied in mathematical logic, especially in model theory

8 0

4 years ago

Convert the average temperatures for each collected data point given below from °C to K. Plot the average cell potentials E (y-a

koban [17]

Answer:

Explanation:

The equation of above line , y = 0.0005x+ 0.458

This can be compared with y = mx+c

Hence slope, m = 0.0005 and Y-intercept, c = 0.458

Or it can be plotted manually where straight line has to be drawn touching maximum number of data points. After drawing a straight linear line, we need to take any two points from the straight line and slope is calculated

Slope,

$m = \frac{y_2-y_1}{x_2-x_1}$

and y -intercept is calculated using extraplotting backwards such that it touches the Y-axis. the point where straight line touches Y-axis is Y-intercept (c).

Plot the average cell potentials E (y-axis) vs T (x-axis). image attached

7 0

3 years ago

011 10.0 points

Sphinxa [80]

Answer:

$-58.3^{\circ}C$

Explanation:

The frequency and the wavelength of a wave are related by the equation

$v=f\lambda$

where

v is the speed

f is the frequency

$\lambda$ is the wavelength

For the sound wave in this problem, we have

f = 634 Hz (frequency)

$\lambda=0.47 m$ (wavelength)

Therefore, the speed of the wave is

$v=(634)(0.47)=298 m/s$

The speed of sound in air depends on the temperature according to the equation

$v=333+0.6 T$

where T is the temperature.

In this problem, we know the speed, so we can calculate the temperature:

$T=\frac{v-333}{0.6}=\frac{298-333}{0.6}=-58.3^{\circ}C$

7 0

3 years ago

How does knowing the reactants and products help you classify a chemical reaction? Write a short paragraph explaining.

Helen [10]

A common clasiffication of the chemical reactions is as combination (or synthesis), decomposiion, single replacement and double replacement. Knowing the reactants and products you can tell to which one of those four classifications a reaction pertains. When two reactants combine into a single product, it is a combination (syntheisis) reaction. When a single reactant yields two or more products, it is a decomposition reaction. When the cation of a single element, replaces the cation in a compound, it is a single replacement. When the cations of two different reactants exchange and end combined with the anions of the others compounds, it is a double replacement reaction.

6 0

3 years ago

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