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Ganezh [65]
3 years ago
15

The theory of global warming states that the average temperature of the earth has been increasing over time. This theory will be

most strongly affected by scientific studies that,
A. allow the measurement of the earth’s temperatures at the poles.

B. reveal how the earth’s temperature has fluctuated in the past.

C. reveal how the earth’s temperature varies from location to location.

D. allow the measurement of the earth’s temperature with greater precision.
Chemistry
2 answers:
allsm [11]3 years ago
3 0
The theory about global warming will be most strongly affected by scientific studies that reveal how the earth’s temperature has fluctuated in the past. The answer is letter C. According to NASA, carbon dioxide levels have increase to nearly 38 percent as of 2009 due to the burning of fossil fuels, cutting down carbon-absorbing forests.

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Soloha48 [4]3 years ago
3 0

Answer:

c

Explanation:

edge 2020

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Identify the correct statements
Illusion [34]

Answer:

D. The mass ratio of oxygen to carbon in CO is twice the mass ratio of oxygen to carbon in CO2

Explanation:

Mass of Oxygen in 1 mole of substance = 16g

Mass of carbon in 1 mole of the same substance = 12g

Ratio of O : C = 12/16

= 1 : 0.75

Mass of oxygen in O2 = (16*2) = 32 g

Mass of carbon = 12 g

Mass ratio of O2 : C

= 32 : 12

= 12/32

= 1 : 0.375

From the calculations above, The mass ratio of oxygen to carbon in CO is twice the mass ratio of oxygen to carbon in CO2.

4 0
3 years ago
A container with a specific volume “V” changes to “2V”. What happens to the average distance between gas molecules? Assume that
NeTakaya
Average distance between gas molecules become double,, hope it helpss
8 0
3 years ago
How can we increase the rate of collisions between the reactants in this reaction? mg 2hcl → mgcl2 h2
Minchanka [31]

<u>The frequency of </u><u>collisions </u><u>between the two reactants increases as the </u><u>concentration </u><u>of the reactants increases</u>. When collisions happen, they don't always cause a reaction (atoms misaligned or insufficient energy, etc.). Higher concentrations result in more collisions and reaction opportunities.

Increasing a reactant's surface area increases the frequency of collisions and thus the reaction rate. The surface area of several smaller particles is greater than that of a single large particle. The greater the available surface area for particles to collide, the faster the reaction will occur.

<h3>How does concentration affect the rate of collisions between reactants?</h3>

Thus, we can conclude that by increasing the concentration of Mg in the reaction mixture we increase the rate of collisions between the reactants in this reaction.

<h3>What does the half reaction of an oxidation-reduction reaction show?</h3>

Iron gains electrons in the half reaction of an oxidation-reduction reaction. What does iron's electron gain mean? It has been reduced. Predict the product that will precipitate out of the reaction using the solubility rules and the periodic table.

Learn more about collisions of particles:

brainly.com/question/14897392

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4 0
2 years ago
calculate the number of coulombs of positive charge in 250cm 3 of (neutral) water. (hint: a hydrogen atom contains one proton; a
Sidana [21]

Number of coulombs of positive charge in 250cm^3 water is 1.3×10^7 C

The volume of 250 cm^3 corresponds to a mass of 250 g since the density of water is 1.0 g/cm^3

This mass corresponds to 250/18 = 14 moles since the molar mass of water is 18. There are ten proton (each with charge q = +e) in each molecule of H_{2}O So,

Q = 14NA  q =14(6.02×10^23)(10)(1.60×10^−19C) = 1.3×10^7 C.

Mass is the quantity of matter in a physical body. It is also a measure of the body's inertia, the resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies.

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​

3 0
1 year ago
 
Mashutka [201]

sodium cloride is salt created from sodium Na and chlorine Ci

Na-sodium Ca- calcium

Ci-chlorine FL- flerovium

Ca- calcium Br-bromine

H- hydrogen He-helium

6 0
3 years ago
Read 2 more answers
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