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1 year ago

What is the greenhouse effect?

Chemistry

2 answers:

Vladimir [108]1 year ago

4 0

Answer:

Answer:

Explanation:

Greenhouse gases allow for sunlight, and the heat radiation to enter the atmosphere, and then prevent it from exiting the atmosphere. Known as the greenhouse effect.

Explanation:

vlabodo [156]1 year ago

4 0

The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere

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What size volumetric flask would you use to create a 0.50 M solution using 10.00 g of CaBr2

SIZIF [17.4K]

Answer:

Explanation:

First convert the grams of Calcium Bromide to moles by using the atomic weight. Then use the formula for molarity, which is moles per liter.

CaBr2 = 199.9 g/mol

10/199.9 = 0.05 moles of CaBr2

$0.5M=\frac{0.05mol}{x}$

x = 0.1L or 100mL

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2 years ago

What is the pressure of 2.20 mol of a gas stored in a 4.5 L container at a temperature of 170 K? (Use PV=nRT and R = 8.314 L∙kPa

algol13

Answer:

I don't know how can i do

Explanation:

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2 years ago

Given a solution with a hydroxide ion concentration, oh=3.73×10^-5,what is the ph

Stells [14]

Answer:

pH = 9.73

Explanation:

pOH is the negative logarithm of the molar concentration of hydroxide ions and pH is the negative logarithm of the concentration of hydronium ions.

The mathematical expression to determine pOH is:

$pOH=-\log [OH^-]$

Where [OH⁻] means the molar concentration of hydroxide ions.

Substituting:

$pOH=-\log {(3.73\times 10^{-5})$

$pOH=4.43$

pH and pOH are related by the equation:

$pH+pOH=14$

From which:

$pH=14-pOH\\\\pH=14 - 4.43\\\\pH=9.57\leftarrow answer$

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3 years ago

What is homogeneous mixture?

Nataly [62]

A mixture is a portion of matter made up of two or more substances called constituents. Mixtures are the product of the mechanical joining of substances without change in chemical nature, and therefore, each constituent retains its properties.

the option 4

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3 years ago

What 2 ways that humans have contributed to desertifaction

sdas [7]

Deforestation and inappropriate agriculture otherwise known as over farming are factors of and causes of desertification.

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2 years ago