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lutik1710 [3]
3 years ago
7

Which elements are magnetic in the periodic table?

Chemistry
1 answer:
rosijanka [135]3 years ago
3 0
METALS ARE MAGNETIC(and maybe metalloids)

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VA 19.75-g sample was heated by 12.35 calories. The specific heat of the sample is 0.125 cal/g°C. What was the initial temperatu
SOVA2 [1]

Answer:

31.9 °C  

Explanation:

The formula for the heat q absorbed by an object is

q = mCΔT where ΔT = (T₂ - T₁)

Data:

q = 12.35 cal

m = 19.75 g

C = 0.125 cal°C⁻¹g⁻¹

T₂ = 37.0 °C

Calculations

(a) Calculate ΔT

q = mCΔT

12.35 cal = 19.25 g × 0.125 cal°C⁻¹g⁻¹ × ΔT

12.35 = 2.406ΔT °C⁻¹  

ΔT  = 12.35/(2.406 °C⁻¹) = 5.13 °C

(b) Calculate T₂

ΔT = T₂ - T₁

T₁ = T₂ - ΔT = 37.0 °C - 5.13 °C = 31.9 °C

The original temperature was 31.9 °C.

 

6 0
3 years ago
What is the correct formula for the compound formed by Mg and F?
Gemiola [76]

Magnesium phosphate

Find Similar Structures

Molecular Formula

Mg3(PO4)2 or Mg3O8P2

Synonyms

magnesium phosphate

More...

Molecular Weight

262.86 g/mol

6 0
2 years ago
Read 2 more answers
The figure above shows the Earth at two different positions in its orbit around the Sun. Which position corresponds to summer in
Lelu [443]

Answer:

A. Position B.

Explanation:

In the summer the northern hemisphere is closer to the Sun so it's Position B.

3 0
3 years ago
Read 2 more answers
Hannah made a diagram to show how plants make their own food. What should Hannah write to fill in the blank in the diagram?
Black_prince [1.1K]

Answer:

Answer: Energy from the sun.

Explanation:

<em>If you look at the hints it says that it needs something else for a plant to grow and what does a plant need? </em>

<em />

<em>Air, Water, and energy from the Sun to make food</em>

<em />

<em />

<em>Hope this helps :)</em>

7 0
3 years ago
Read 2 more answers
What drives this process
m_a_m_a [10]

Answer:

B

Explanation:

cool air never rises so not A

C would mean its getting warmer

and heat flows from warm to cool so not D

we are left with B

if my anwser helps please mark as brainliest.

8 0
3 years ago
Read 2 more answers
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