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soldi70 [24.7K]
2 years ago
15

The space race was between

Chemistry
1 answer:
Leviafan [203]2 years ago
4 0

Answer:

the United States and the Soviet Union.

Explanation:

Basically we were in toe to toe with the russians for space explorations like who's gonna get to space first or moon or do such explorations

You might be interested in
.
lesya692 [45]

Answer:

Student 3

Explanation:

This question lets us know something about how the density of a gas varies with temperature.

When a gas is heated, its molecules spread out and expand. When this happens, the volume of the gas increases. Remember that density is defined as mass/volume. Thus as the volume increases, the density of the gas decreases.

Therefore, the carbon dioxide rose up because the heat expanded the gas and it became less dense.

7 0
2 years ago
Kai was 200 meters north of the library when he remembered he had to return some books to the library .it took him seconds to do
galben [10]

Answer:

His speed was 2 m/s, and his velocity was 0.  So it is B

Explanation:

took the test

8 0
3 years ago
How does soil affect groundwater?
BaLLatris [955]
Water infiltrates faster into soils that are mostly sand than into those that are mostly clay or silt. ... When the soil is completely saturated, additional water moves slowly down through the unsaturated zone to the saturated zone, replenishing or recharging the groundwater.
3 0
3 years ago
A certain reaction has an activation energy of 51.64 kj/mol. At what temperature Kelvin will the reaction be 5.50 times faster t
pishuonlain [190]
For this, we use the Arrhenius equation to solve the problem. It is expressed as:
k = Ae^-(E/RT)

where k is the reaction rate, A is the pre-exponential factor, E is the activation energy and T is the temperature.

For a reaction, A is constant at different temperatures. We then isolate the constant and then introduce the second condition to the equation since it will still be equal to the constant. It is then simplified to:

ln(k2/k1) = -E/R (1/T2 - 1/T1)
ln(5.50k1/k1) = -51.64/8.314 (1/T2 - 1/343)
T2 = 379 K

3 0
3 years ago
Which letter (a-f) represents activation energy (Ea) of the forward reaction (reactants)?
MaRussiya [10]

Answer:

The correct option is;

f

Explanation:

Here we have the activation energy is the minimum energy that is needed to allow a reaction to take place. The activation energy is the energy atoms or molecules need to be in a state where they can take part in a chemical reaction or a physical transport.

In the diagram, It is the amount of energy to be added to the energy in the reactants in their initial state which is on the left plateau on the reaction-energy chart, to the transition state which is the peak of the chart.

6 0
3 years ago
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