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lozanna [386]
3 years ago
15

Which statement below is TRUE? View Available Hint(s) Which statement below is TRUE? Acids are classified as alkaloids. Acids ca

n dissolve many metals. Bases turn blue litmus paper red. Bases have a sour taste.
Chemistry
1 answer:
bekas [8.4K]3 years ago
3 0

Answer:

The second option is correct

= Acid can dissolve many metals

Explanation:

Acid reacts with most metals to liberate hydrogen gas, during the process the metals dissolve in the acid

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The ability of copper to be made into sheets is called ________ .
Norma-Jean [14]
The ability of copper to be made into sheets is called malleability
5 0
3 years ago
If a=1/2(a+b)h,express a in terms of A,b and h. pls solve with step by step ​
DedPeter [7]

Answer:

a = \frac {2A - bh}{h}

Explanation:

Given the following mathematical expression;

A = ½(a + b)h

To make a the subject of formula (express a in terms of A, b and h);

First of all, we would cross-multiply;

2A = (a + b)h

Opening the bracket, we have;

2A = ah + bh

Rearranging the mathematical expression, we have;

ah = 2A - bh

a = \frac {2A - bh}{h}

6 0
3 years ago
After use, non-biodegradable plastics last for many years in __________ sites. Many also pollute the ocean.
Len [333]

Answer:

Land fill

Explanation:

A landfill is a carefully managed waste disposal site. It is the oldest method of waste disposal. In a dumpsite, biodegradable materials decay overtime.

However, non-biodegradable materials such as plastics and other polymers tend to last many years in landfills. This category of wastes pose a great threat to the environment.

7 0
3 years ago
How many atoms is 50 g of He?
tigry1 [53]
Atomic <span>mass He = 4.002 u.m.a

4.002 g --------------- 6.02x10</span>²³ atoms
50 g ------------------ ? atoms

50 x ( 6.02x10²³) / 4.002

= 3.01x10²⁵ / 4.002

= 7.52x10²⁴ atoms of He
6 0
3 years ago
An aluminum can holds 350 mL of gas at 0 C and 1.0 atm. what is the new volume if the can is heated to 10 C and the pressure ins
Mademuasel [1]

Answer:

Final volume of the gas is 4.837mL

Explanation:

Initial volume (V1) = 350mL = 0.35L

Initial temperature (T1) = 0°C = (0 + 273.15)k = 273.15k

Initial pressure (P1) = 1.0atm

Final volume (V2) = ?

Final temperature (T2) = 10°C = (10 + 273.15)k = 283.15K

Final pressure (P2) = 75atm

To solve this question, we'll have to use combined gas equation which is the combination of all gas law I.e Charle's laws, Boyle's law, Pressure law etc.

According to combined gas equation,

(P1 × V1) / T1 = (P2 × V2) / T2

Make V2 the subject of formula,

V2 = (P1 × V1 × T2) / (P2 × T1)

V2 = (1.0 × 0.35 × 283.15) / (75 × 273.15)

V2 = 99.1025 / 20,486.25

V2 = 0.004837L

V2 = 4.837mL

The final volume of the gas is 4.837mL

5 0
3 years ago
Read 2 more answers
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