All categories

3 years ago

I just need help with 2 chemistry questions! Can you please help me? I will give brainliest answer!

Chemistry

2 answers:

Wewaii [24]3 years ago

7 0

Question 1

B. The two metal samples will change temperature at about the same rate.

D. The gold would sink to the bottom if placed in the mercury.

Question 2

C. 2

telo118 [61]3 years ago

6 0

1
C. The gold would float if placed in the mercury.
A. The mercury will change temperature at a much faster rate under the same heating conditions.

You might be interested in

Convert 6.62 X 10^23 atoms to moles

olga2289 [7]

Answer:

1.099

Explanation:

Hope this helps

5 0

3 years ago

Read 2 more answers

Use significant figures rule

ivolga24 [154]

Answer:

x, Z, M, H, A, K, E, I, L, R, O, W

7 0

3 years ago

If a gas is initially at a pressure of 9 atm, a volume of 21 liters, and a temperature of 253 K, and then the pressure is raised

alex41 [277]

Answer:

15.04 mL

Explanation:

Using Ideal gas equation for same mole of gas as

$\frac {{P_1}\times {V_1}}{T_1}=\frac {{P_2}\times {V_2}}{T_2}$

Given ,

V₁ = 21 L

V₂ = ?

P₁ = 9 atm

P₂ = 15 atm

T₁ = 253 K

T₂ = 302 K

Using above equation as:

$\frac {{P_1}\times {V_1}}{T_1}=\frac {{P_2}\times {V_2}}{T_2}$

$\frac {{9}\times {21}}{253}=\frac {{15}\times {V_2}}{302}$

Solving for V₂ , we get:

V₂ = 15.04 mL

3 0

3 years ago

Which of the following best explains how subsoil becomes rich in minerals?

balu736 [363]

The nurse is caring for a client with a temperature of 104.5 degrees Fahrenheit. A health care provider prescribes 500 mg of an antibiotic intravenous While undergoing a soapsuds enema, theclient reports abdominal cramping.

5 0

3 years ago

---

svet-max [94.6K]

No of protons=No of electrons=15

<h3>Mass no:-No of neutrons+No of protons </h3>

$\\ \tt\longmapsto 15+16=31$

Now

It has atomic no 15 hence its Phosphorus(P)

Electronic configuration:-

$\\ \tt\longmapsto 1s^22s^22p^63s^23p^3$ .

Valency=3

Chloride formula:-

$\\ \tt\longmapsto XCl_3$

or.

$\\ \tt\longmapsto PCl_3$

5 0

3 years ago

Read 2 more answers