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a_sh-v [17]
3 years ago
13

2. The most recent ice age ended about

Chemistry
1 answer:
zloy xaker [14]3 years ago
5 0

Answer:

The most recent ice age ended about 10,000 years ago

Explanation:

The last ice age began 110,000 years ago and ended 10,000 years ago, leading to the temperature of the Earth, expansions of glaciers and polar ice caps were made.

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Two moles of ideal He gas are contained at a pressure of 1 atm and a temperature of 300 K. 34166 J of heat are transferred to th
iragen [17]

Explanation:

The given data is as follows.

       n = 2 mol,         P = 1 atm,         T = 300 K

        Q = +34166 J,         W= -1216 J (work done against surrounding)

       C_{v} = \frac{3R}{2}

Relation between internal energy, work and heat is as follows.

      Change in internal energy (\Delta U) = Q + W

                                   = [34166 + (-1216)] J

                                   = 32950 J

Also,  \Delta U = n \times C_{v} \times \Delta T

                      = 3R \times (T_{2} - T_{1})

                 32950 J = 3 \times 8.314 J/mol K \times (T_{2} - 300 K)

                \frac{32950}{24.942} = T_{2} - 300 K

                            1321.06 K + 300 K = T_{2}    

                                       T_{2} = 1621.06 K

Thus, we can conclude that the final temperature of the gas is 1621.06 K.

8 0
3 years ago
What will be the cost of gasoline for a 4,700-mile automobile trip if the car gets 41 miles per gallon, and the average price of
NARA [144]
  • Answer:

<em> $ 434.40</em>

  • Explanation:

<em>41 miles ............ 1 gallon</em>

<em>4700 miles .......x gallon</em>

<em>x = 4700×1/41 = 114.63 gallons</em>

<em />

<em>114.63 gallons×$3.79 ≈  $ 434.40</em>

3 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP I'M SO STRESSED
bazaltina [42]

Answer:

160.3g

Explanation:

We know the equation:

No of moles = mass ÷ Mass of element

We need to find the mass, so make mass the subject of the formula.

Mass = No. of moles × mass of element

Mass = 5 × 32.06

Mass = 160.3g

4 0
2 years ago
An organism making an identical copy of itself is what type of reproduction?​
zhannawk [14.2K]

Answer:

asexual reproduction

Explanation:

some multicellular organisms also reproduce by producing genetically identical clones of themselves. any form of reproduction that results in new individuals that are genetically identical is called asexual reproduction

7 0
2 years ago
Read 2 more answers
I NEED THE ANSWER QUICKKK!!!
julsineya [31]

Answer:  This is hard to do accurately, but here is my best assessment.

Explanation:

Experiment:  B  -  describes how the experiment was done

Conclusion:  A  -  The data support the prevailing hypothesis

Research:  D   -   This is what we analyzed

Analysis:  C  -  We compared the data

7 0
2 years ago
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