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timama [110]
3 years ago
13

Which is a metal alloy?

Chemistry
1 answer:
Nikolay [14]3 years ago
4 0
D they are all metals

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Periodic Law Directed Reading
kolbaska11 [484]

Answer:

C

Explanation:

8 0
3 years ago
Read 2 more answers
Suppose a 20.0 g gold bar at 35.0°C absorbs 70.0 calories of heat energy. Given that the specific heat of gold is 0.0310 cal/g °
timofeeve [1]

We know, change in temperature is given by :

T_2-T_1=\dfrac{q}{mC_p(Gold)}

Putting all given values, we get :

T_2-T_1=\dfrac{70\ cal}{20\ g\times 0.0310\ cal/g^o\ C}\\\\T_2-T_1=112.90^oC\\\\T_2-35^oC=112.90^oC\\\\T_2=(112.90+35)^oC\\\\T_2=147.9^oC

Hence, this is the required solution.

6 0
4 years ago
Il See Periodic Table See Hint
zavuch27 [327]

The molecular formula shows the number of atoms present. The molecular formula of the gas is most likely ClO2.

In terms of gas density and molar mass, the ideal gas equation can be written in the form; PM = dRT

Where;

P = pressure of the gas

M = molar mass of the gas

d = density of the gas

R = molar gas constant

T = temperature of the gas

Making the molar mass of the gas the subject of the formula;

M = dRT/P

d = 2.875 g/L

R = 0.082 atmLmol-1K-1

T =  11°C + 273 = 284 K

P = 750.0 mm Hg or 0.99 atm

Substituting values;

M =  2.875 g/L ×  0.082 atmLmol-1K-1 × 284 K/ 0.99 atm

M = 67.6 g/mol

The gas is most likely ClO2.

Learn more: brainly.com/question/11969651

6 0
3 years ago
How many moles of iron are in 50.0g of iron? How many iron atoms are in 50.0g of iron?
gayaneshka [121]

Answer:

50g iron comprises 5.376 × 1023 atoms.

Explanation:

7 0
3 years ago
PLEASE HELP ASP!! ILL MARK U AS BRAINLIEST Two objects have a certain gravitational force between them. What would happen if the
iren [92.7K]

Answer:

The gravitational force between the two objects would increase.

8 0
3 years ago
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