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hodyreva [135]
2 years ago
6

Scientists conducted an experiment to show whether the ability to see an object affects a person's idea of the mass of the objec

t. They used the following procedure: Obtain two cardboard boxes of different sizes. Place rocks in each box so that both boxes have the same mass. Close each box and tie a string to it so that participants lift each box using the string. Blindfold half of the participants in the experiment. Ask participants to lift each box using the string and report which one they think has more mass. Record results. The table shows the results of the experiment
Chemistry
1 answer:
kogti [31]2 years ago
8 0

Answer: Visual information makes them think the larger box has more mass.

(Have a lovely day!)

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(-3,5); m= 2/3 plzzzzz help
AveGali [126]

Setting up the equation, you get

5=\frac{2}{3} *(-3)+b

b=7

Therefore, the equation is y=\frac{2}{3} x+7


6 0
4 years ago
Read 2 more answers
Es una mezcla de gases que rodea la Tierra​
DENIUS [597]

Answer:

 El aire es una mezcla de gases que forman la atmósfera, es por ello que se encuentra en todas partes. Sus componentes principales son el nitrógeno, oxígeno, dióxido de carbono, neón, helio, entre otros.

8 0
3 years ago
What’s the partial pressure of carbon dioxide in a container that holds 5 moles of carbon dioxide, 3 moles of nitrogen, and 1 mo
satela [25.4K]

Answer:

p

(

CO

2

)

=

0.58

atm

Explanation:

p

(

CO

2

)

=

Total pressure

⋅

Mole fraction of CO

2

=

1.05

⋅

5

5

+

3

+

1

=

1.05 ⋅ 5/9 = 0.58 atm

Explanation:

7 0
3 years ago
A group of scientists in Alaska notices that not only have atmospheric CO2 levels increased at their sampling site but so too ha
lutik1710 [3]

Answer:

The release of methane from thawed permafrost.

Explanation:

The complete question is

A group of scientists in Alaska notices that not only have atmospheric CO2 levels increased at their sampling site but so too have methane levels. What could account for this increase in methane levels?

- None of the answer options is correct.

- The release of methane from thawed permafrost.

-A decrease in beef production near the researchers' sampling area.

-The melting of permafrost accompanied by the thawing of methane-producing bacteria.

-The failure of rice paddies to be established in Alaska, given its climate.

Permafrost regions like the arctic circle hold a large supply supply of methane in their soils and their seas. Ordinarily, this methane should be gradually released naturally over a long period of time, but the effects of global warming is making these permafrost to thaw at a much faster rate, accelerating the release of methane into the atmosphere. The dark side is that methane is about 80 times more deadly when compared to CO2 in its contribution to the green house effect on earth.

5 0
4 years ago
How many moles of CuO are needed to react with 5.9 moles of CO2
Likurg_2 [28]

Answer:

If 5.9 moles of CO₂ react, 5.9 moles of CuO will also react.

Explanation:

The balanced reaction is:

CuO + CO₂ → CuCO₃

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:

  • CuO: 1 mole
  • CO₂: 1 mole
  • CuCO₃: 1 mole

You can see that the stoichiometric relationship between CuO and CO₂ is 1: 1. In other words, for each mole of CuO that reacts, one mole of CO₂ will also react.

So <u><em>if 5.9 moles of CO₂ react, 5.9 moles of CuO will also react.</em></u>

8 0
3 years ago
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