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Greeley [361]
3 years ago
13

The world’s supply of freshwater is increasing.

Chemistry
2 answers:
Crank3 years ago
6 0

Answer:

False

Explanation:

Freshwater refers to naturally occurring water except seawater and brackish water; that includes water in glaciers, icebergs, ponds, lakes, rivers, streams, and even underground water. Fresh water is generally characterized by having low concentrations of dissolved salts. The world’s supply of freshwater is being degraded and decreasing by pollution caused by human activities such as industrial waste,residential waste, fertilizers and pesticides used in agriculture, et cetera.

lara31 [8.8K]3 years ago
5 0

T

Explanation:

It is true that Hari Singh was influenced by the generosity of Anil.

The generous, good, trusting and the credulous nature of Anil made a deep impact on him.

Anil started to teach him to write various complete sentences. When Hari Singh received the opportunity to fly away with the money of Anil, he did not do it. The transformation of Hari Singh was effected by the goodness and generosity.

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Two Balloons one filled with hydrogen gas and second filled with neon gas. what gas should be used in an experiement to identify
dalvyx [7]

Answer:

Oxygen

Explanation:

If two balloons are filled with hydrogen gas and helium gas respectively, then we want to identify what gas is in each balloon, we have to do so by exposing the both balloons to flame in an oxygen atmosphere.

Hydrogen combines with oxygen in the presence of a flame with quite a loud sound and the flame is sustained but when a flame is brought near helium gas in a balloon, the gas will only make a little sound when exposed to the flame and extinguish the flame.

The reason for the explosion of the gas in the hydrogen balloon is that combustion of hydrogen gas is exothermic. The heating up of surrounding air molecules leads to a sudden explosion.

However, the helium balloon makes a little sound when the balloon is ruptured releasing helium gas which extinguishes the flame.

8 0
2 years ago
The main acid in the stomach is hydrochloric acid (HCl). Which chemical equations show a reaction that occurs when someone takes
777dan777 [17]
I think the correct answer would be HCl + NaHCO3 -> NaCl + H2O + CO2, 2HCl + CaCO3 -> CaCl2 + CO2 + H2O, 2HCl + Mg(OH)2 -> MgCl2 + 2H2O. Hydrochloic acid would react with the basic substances in the stomach which are magnesium hydroxide, sodium bicarbonate and <span>calcium carbonate.</span>
7 0
3 years ago
Read 2 more answers
Pls help me ASAP thank you!!
Stolb23 [73]
Sorry i cant even read that
7 0
3 years ago
Given the following reaction: 2D(g) + 3E(g) + F(g) \longrightarrow⟶ 2G(g) + H(g) When the concentration of D is decreasing by 0.
Zepler [3.9K]

Answer:

Rate of reaction = -d[D] / 2dt  = -d[E]/ 3dt = -d[F]/dt  = d[G]/2dt = d[H]/dt

The concentration of H is increasing, half as fast as D decreases: 0.05 mol L–1.s–1

E decreseas 3/2 as fast as G increases = 0.30 M/s

Explanation:

Rate of reaction = -d[D] / 2dt  = -d[E]/ 3dt = -d[F]/dt  = d[G]/2dt = d[H]/dt

When the concentration of D is decreasing by 0.10 M/s, how fast is the concentration of H increasing:

Given data = d[D]/dt = 0.10 M/s

-d[D] / 2dt  = d[H]/dt

d[H]/dt = 0.05 M/s

The concentration of H is increasing, half as fast as D decreases: 0.05 mol L–1.s–1

When the concentration of G is increasing by 0.20 M/s, how fast is the concentration of E decreasing:

d[G] / 2dt  = -d[H]/3dt

E decreseas 3/2 as fast as G increases = 0.30 M/s

5 0
3 years ago
What is the organization that regulates the safety of Bluetooth and other wireless devices
Dimas [21]

Answer:

The U.S. Federal Communications Commission (FCC)

Explanation:

7 0
2 years ago
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