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Westkost [7]
3 years ago
5

WILL GIVE BRAINLIEST AND 10 POINTS!

Chemistry
2 answers:
melamori03 [73]3 years ago
5 0

Answer:

student A

Explanation:

Student A because it requires a hypothesis

GarryVolchara [31]3 years ago
4 0

Student B because it requires a hypothesis

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The best tool to use to locate the boundaries between countries is a(n) _____.
8_murik_8 [283]

The correct answer is (b) political map

The explanation:

when a political map: is different than other types of maps because it focuses on government or administrative boundaries rather than geographical or physical features. Instead of showing viewers what exists in the land, it shows those imaginary lines that serve to separate countries, states, territories, and cities. These maps generally include larger bodies of water, such as oceans, rivers, and lakes, as landmarks.

It was made by man not natural like the others maps.

so this is the correct answer.

8 0
3 years ago
What 3 gases does the flame test check for and what should you expect to see/hear?
Kazeer [188]
What of the gasses is N and the flame changes it's color from Orange to blue
7 0
4 years ago
Intravenous saline solutions are often administered to patients in the hospital. Normal saline solution containers has a concent
zalisa [80]

0.02 mol NaCl

Explanation:

(0.2M NaCl)×(0.10 L) = 0.02 mol NaCl

8 0
3 years ago
How many grams of CO2 are in 10 mol of the compound?
IrinaK [193]
The answer is 60 grams.
3 0
3 years ago
Read 2 more answers
How many moles of ideal iodine gas has a volume of 1250 mL at 10 degrees C and 768 mm pressure?
SSSSS [86.1K]

Answer:

n=0.0564mol

Explanation:

Hello,

In this case, since iodine is ideal we can use the ideal gas equation to compute the moles at the given conditions, considering the following units:

V=1250mL*\frac{1L}{1000mL} =1.25L\\P=768mmHg*\frac{1atm}{760mmHg}=1.01atm\\ T=10+273.15=283.15K

PV=nRT

n=\frac{PV}{RT} =\frac{1.01atm*1.25L}{0.082\frac{atm*L}{mol*K}*273.15K}  \\\\n=0.0564mol

Best regards.

5 0
4 years ago
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