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sammy [17]
3 years ago
9

Jack tries to place magnets on the door of his refrigerator. He observes that the magnets don’t stick. He guesses that the door

of the refrigerator is made of a nonmagnetic substance. What stage of scientific investigation does his guess represent?
A.
ask questions
B.
construct a hypothesis
C.
explain the results
D.
make observations
Chemistry
1 answer:
Nitella [24]3 years ago
5 0
The answer Is either C or D
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Can someone help me? <br><br>-just check my latest question.. thanks... ​
Harman [31]

Explanation:

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<h2>yes can you. do this</h2>
7 0
3 years ago
HELPP!!!!!!!!!!
muminat

1. Mg + CuSO4 —> MgSO4 + Cu

=> Single displacement reaction

2. 2HCI + Mg(OH)2 —> MgCI2 + H2O

=> Acid - base reaction

3.AgNO3 + NaCI —> AgCI + NaNO3

=> Double displacement reaction

8 0
3 years ago
How to find the final temperature
sveta [45]

Answer:

The final temperature will be "12.37°".

Explanation:

The given values are:

mass,

m = 0.125 kg

Initial temperature,

c = 22.0°C

Time,

Δt = 4.5 min

As we know,

⇒  q=mc \Delta t

On putting the estimated values, we get

⇒     =0.125\times 22.0\times 4.5

⇒     =12.37^{\circ}

8 0
3 years ago
Significant figures<br> 5.3316 + 6.87 + 37.48
Aleksandr-060686 [28]

Answer:

Explanation:

01: 5.3316+6.87+37.48

02: 12.2016+37.48

03: 49.6816

04: 49.68

Answer: 49.68 (Decimals: 2; Significant Figures: 4)

HOPE THIS HELPS..

5 0
4 years ago
Read 2 more answers
How are energy and mass connected during the formation of an atom?
Jlenok [28]
I think the right answer for this question is option A. The energy absorbed so the mass will be increased. 
6 0
3 years ago
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