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Mkey [24]
3 years ago
8

Which of the following is an important difference between climate and weather?

Chemistry
1 answer:
ANEK [815]3 years ago
5 0

A

Explanation:

Weather can be defined as the day-to-day changes in the atmospheric parameters like temperatures, humidity,  rainfall, and pressure. When these weather changes are observed for approximately over 30 years, the climate of the regions can be determined by understanding the patterns.

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A material resource is a renewable resource that is used to make objects.. true or false ?
spin [16.1K]

Answer:

Renewable resources include biomass energy (such as ethanol), hydropower, geothermal power, wind energy, and solar energy. Biomass refers to organic material from plants or animals.

so its false

5 0
3 years ago
Read 2 more answers
In order to produce CO2, a student put a sample of calcium carbonate in a flask and added hydrochloric acid using the following
Lady_Fox [76]

Answer:

82.9% Is the percent yield

Explanation:

First, we need to balance the equation.

Ca(CO3) + 2HCl → H2O + CO2 + CaCl2

Since the problem tells you that the excess reactant is Ca(CO3), we just need to Stoichiometry to solve for the theoretical yield.

\frac{200g HCl}{1} x \frac{1 mole HCl}{36.46gHCl} x \frac{1 mol CO2}{2molHCl} x \frac{44.01CO2}{1molCO2} =120.707 g (theoretical yield)

Take your actual yield of 100g, divide that by 120.707, then multiply that decimical by 100.

4 0
3 years ago
The table compares the final cost of
Snowcat [4.5K]

Answer:

y = -2.5 + x

Explanation:

Given the data:

__X____Y

$20 __$17.50

$21 __ $18.50

$22__ $19.50

$23__ $20.50

Using a linear regression calculator :

The linear regression model obtained is :

y = -2.5 + x

Where ; - 2.5 = intercept ; gradient / slope = 1

3 0
3 years ago
Marcia is given an incomplete chemical equation that includes the number of nitrogen atoms present in the products of the reacti
Elden [556K]
If the products contain 3 nitrogen atoms, then so did the reactants since overall mass is conserved in a chemical reaction.
8 0
3 years ago
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Which functional group does the molecule below have?
Andrei [34K]

Answer:

Hydroxyl

Explanation:

A hydroxyl group is a functional group that attaches to some molecules containing an oxygen and hydrogen atom, bonded together. Also spelled hydroxy, this functional group provides important functions to both alcohols and carboxylic acids.

3 0
3 years ago
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