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agasfer [191]
3 years ago
6

HELPPPPPP PLZZZz i'll mark brainliest! Infrared (IR) and ultraviolet (UV) light. But above 29°C, the coating on the glass underg

oes a chemical change, causing it to block IR light. What happens to the IR light?
Chemistry
2 answers:
Elena L [17]3 years ago
8 0

Answer:

It goes away

Explanation:

cause the IR light only can see through clean glass.

GalinKa [24]3 years ago
7 0

Answer:

It would not reason any impact since its hindering it. Essentially u could state that what might happen is that no impact was going on because of the impeding.

Explanation:

Brainliest please ?

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2. Each cart below is pushed across a room with the same amount of force. Which cart will result in the greatest change in speed
Tanya [424]

Answer: A 15 kg cart being pushed with a 200 N force.

Explanation:

The 15 kg cart is the lightest, so it has the least amount of friction on the ground.

4 0
3 years ago
How are the particles of butterfat made smaller so that the mixture is homogenized?
nalin [4]

Explanation:

A heterogeneous mixture has particles that are not uniformly distributed, but a homogeneous mixture has particles that are uniformly distributed.

4 0
3 years ago
Pls help me on this it's about acceleration​
motikmotik

Answer:

1: A b/c the table is showing that each different surface resulted in different time for acceleration.

2: D b/c the if the same force is applied to two different masses, the smaller masses would be impacted more and move faster. The larger an object is, then the greater the force you will need for it to move the same distance as the smaller masses.

8 0
3 years ago
When the human body is exposed to extreme cold, hypothermia can result and the body’s temperature can drop to 28.68°C. Convert t
salantis [7]

Answer:

299.83°K

Explanation:

So, kelvin is a means of measuring temperature, as the question implies. To convert Celsius, one form of measuring temperature, to Kelvin, another form of measuring temperature, we must know the conversion median. Our median is that 0°C = 273.15°K. So, now, as we know that 0°C = 273.15°K, 26.68°C = 273.15°K + 26.68°. Because 273.15K might as well be zero degrees celsius (according to our median 0°C = 273.15°K), we simply add 26.68° to 273.15K and get 299.83°K

3 0
2 years ago
buffer consists of 0.50 M NaH2PO4 and 0.40 M Na2HPO4. Phosphoric acid is a triprotic acid (K a 1 = 7.2 × 10 − 3, K a 2 = 6.3 × 1
Levart [38]

Answer:

The Ka value used for the buffer system is :- Ka2 = 6.3\times 10^{-8} pKa2 = 7.2

pH = 7.1

Explanation:

The buffer system given in the question is :-

NaH_2PO_4 and Na_2HPO_4

The reaction taking place is:-

H_2PO_4^-\rightleftharpoons HPO_4^{2-}

The Ka value used for the buffer system is :- Ka2 = 6.3\times 10^{-8} pKa2 = 7.2

The pH can be calculated as:-

pH=pKa+\log\frac{Na_2HPO_4}{NaH_2PO_4}

pH = 7.2 + log 0.40/0.50 = 7.1

7 0
4 years ago
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